Roberts Smorgasbord
TRIACs – The Dirty Details (3/3): Practical Considerations
updated
↓↓↓ Complete description, time index and links below ↓↓↓
We left off last time with the two workpieces prematurely separated and a broken drill stuck in one workpiece (link below). So now it’s disaster recovery time, respectively, double time, because I have to perform all remaining operations twice.
To drill/push out the broken drill from the other side is easy enough. Afterwards we drill the remaining large 12mm holes. And I break off another drill – for a 1.6mm hole! There’s also some milling, thread cutting and sawing (which I mess up too).
00:00 Intro – recovering from two previous mishaps
01:00 Planned – all the remaining operations
01:52 Marked (1) – remaining 5mm holes on wide side of stock
02:24 Drilled (1) – remaining 5mm holes on wide side of stock
03:24 Drilled (2) – remaining 12mm holes on wide side of stock
05:16 Drilled (3) – 1.6mm hole on narrow side of stock
08:00 Drilled (4) – partial 2.4mm hole on narrow side of stock
09:10 Drilled (5) – 1.6mm hole with broken drill tip at the end
11:34 Milled – pocket for M2 screw head into stock
12:44 Sawed – slot into stock to from C-clamp
13:23 Cut – M2 thread into 1.6mm hole in stock
16:13 Wrap-up – last two operations will be done later, bye
Dual Electronic Engine Control Lever IP68 youtube.com/playlist?list=PLwq-2MnM58FLQ468e5-wzV6_MeqT4Zd5T
Dual Electronic Engine Control Lever IP68 (1): Project Kick-Off youtu.be/hPBkBoe81jY
Dual Electronic Engine Control Lever IP68 (2): 1st LEGO® Technic™ Prototype youtu.be/rH1zjXptJrg
Dual Electronic Engine Control Lever IP68 (3): LEGO® Model, PCB Layout, Friction youtu.be/XZdhH0JCDWA
Dual Electronic Engine Control Lever IP68 (4): First Drawing, Final PCB Layout youtu.be/PJBEf1LOwcY
Dual Electronic Engine Control Lever IP68 (5): Handles youtu.be/7WoETltnHtY
Dual Electronic Engine Control Lever IP68 (6): Levers (1) youtu.be/UZPrt9G_c_0
Proxxon BFB 2000, KT 150, BFW 40/E & Röhm Vise Milling Stack Setup/Alignment youtu.be/dBIBGUnTe7M
#throttle #lever #ip68 #robertssmorgasbord
↓↓↓ Complete description, time index and links below ↓↓↓
In the previous video we made some handles out of POM (link below). Now we need some aluminum levers we can attach these handles to.
After going over the detailed drawing for the levers, we just saw off two pieces of aluminum stock and start milling and drilling. However, I ran into some serious problems along the way …
00:00 Intro – levers out of aluminum POM
00:47 Detailed drawing – of levers
03:18 Sawed (1) – two pieces off aluminum square stock
05:29 Glued – the two pieces of square stock together
08:01 Milled (1) – the square stock to width
17:35 Milled (2) – the square stock to length
20:31 Marked – all required lines on the square stock
25:41 Drilled (1) – 5mm holes on wide side of stock
31:36 Drilled (2) – 12mm holes on wide side of stock
39:22 Wrap-up – next up is disaster recovery, bye
Dual Electronic Engine Control Lever IP68 youtube.com/playlist?list=PLwq-2MnM58FLQ468e5-wzV6_MeqT4Zd5T
Dual Electronic Engine Control Lever IP68 (1): Project Kick-Off youtu.be/hPBkBoe81jY
Dual Electronic Engine Control Lever IP68 (2): 1st LEGO® Technic™ Prototype youtu.be/rH1zjXptJrg
Dual Electronic Engine Control Lever IP68 (3): LEGO® Model, PCB Layout, Friction youtu.be/XZdhH0JCDWA
Dual Electronic Engine Control Lever IP68 (4): First Drawing, Final PCB Layout youtu.be/PJBEf1LOwcY
Dual Electronic Engine Control Lever IP68 (5): Handles youtu.be/7WoETltnHtY
Mailbag: Lots of Tools (Machining) and Material (Aluminum, POM) Part 1 of 2 youtu.be/Sd51lL06qns
"Simple" Constant Current Load (2): Heatsink Machining and Attaching youtu.be/Ep3ASITiROg
Proxxon BFB 2000, KT 150, BFW 40/E & Röhm Vise Milling Stack Setup/Alignment youtu.be/dBIBGUnTe7M
Proxxon BFW 40/E Spindle Power Supply Teardown (Circuit, Waveforms) youtu.be/kbZFDs10nTI
#throttle #lever #ip68 #robertssmorgasbord
↓↓↓ Complete description, time index and links below ↓↓↓
A milling machine made up from different components is a challenge precision wise. My milling combo is consists of a Proxxon BFB 2000 mill/drill stand, a Proxxon KT 150 compound table, a Röhm 863422 machine vise and a BFW 40/E spindle.
I attach the compound table to the mill stand (some constraints there), align the machine vise on the compound table, tram the head (the right equipment with a steel square), and clamp the spindle into the collar (some shimming required).
00:00 Intro – a mill stand, a compound table and a machine vise
01:19 Compound table – mounting on mill stand and aligning
11:59 Machine vise – mounting on compound table and aligning
21:01 Head angle – aligning as good as possible
24:53 Spindle motor – aligning as good as possible
28:42 Wrap-up – hopefully good enough, bye
Tutorials youtube.com/playlist?list=PLwq-2MnM58FKn3920rc1V0qoTsQDheTIw
Proxxon BFB 2000 Mill/Drill Stand Overhaul (Complete Teardown) youtu.be/dGyBfAovh6o
Proxxon KT 150 Compound Table Overhaul (Complete Teardown) youtu.be/lSS70lH0pPk
Mailbag: Lots of Tools (Machining) and Material (Aluminum, POM) Part 1 of 2 youtu.be/Sd51lL06qns
PROXXON Precision Lathe PD 250/E Unboxing and First Impressions youtu.be/Sd51lL06qns
#proxxon #tutorials #tutorial #how-to #robertssmorgasbord
↓↓↓ Complete description, time index and links below ↓↓↓
After having shown you the drawing of the final product in the last video (link below), it’s finally time to say goodbye to the LEGO® Technic™ stuff and to machine some real parts. We’ll start off with something supposedly easy: The handles.
We will make those from POM round stock on my brand spanking new Proxxon PD 250/E lathe (link below). However, it turned (pun intended) out they required quite a number of operations, some of them really time consuming, to finish.
00:00 Intro – levers and handles out of aluminum and POM
00:39 Detailed drawing – of levers and handles
02:05 Chucked and dialed in (1) – one end the round stock
05:56 Faced and center drilled (1) – one end of round stock
07:36 Turned down (1) – majority of the round stock to diameter
22:41 Chucked and dialed in (2) – other end of the round stock
23:07 Faced and center drilled (2) – other end of the round stock
24:06 Turned down (2) – rest of the round stock to diameter
28:06 Drilled (1) – 6mm hole through most of the round stock
31:14 Parted off – one half of the round stock
33:12 Drilled (2) – 6mm through the rest of the round stock
34:20 Faced – one end of the first handle
35:10 Faced to length – other end of the first handle
41:33 Drilled (3) – started 12mm pocket in the first handle
45:11 Drilled (4) – finished 12mm pocket in the first handle
49:12 Result – first handle finished, looking good
50:42 Wrap-up – next time we’ll start with the handles, bye
Dual Electronic Engine Control Lever IP68 youtube.com/playlist?list=PLwq-2MnM58FLQ468e5-wzV6_MeqT4Zd5T
Dual Electronic Engine Control Lever IP68 (1): Project Kick-Off youtu.be/hPBkBoe81jY
Dual Electronic Engine Control Lever IP68 (2): 1st LEGO® Technic™ Prototype youtu.be/rH1zjXptJrg
Dual Electronic Engine Control Lever IP68 (3): LEGO® Model, PCB Layout, Friction youtu.be/XZdhH0JCDWA
Dual Electronic Engine Control Lever IP68 (4): First Drawing, Final PCB Layout youtu.be/PJBEf1LOwcY
PROXXON Precision Lathe PD 250/E Unboxing and First Impressions youtu.be/Sd51lL06qns
Mailbag: Lots of Tools (Machining) and Material (Aluminum, POM) Part 1 of 2 youtu.be/Sd51lL06qns
Mailbag: Lots of Tools (Machining) and Material (Aluminum, POM) Part 2 of 2 youtu.be/EdMW0VKb550
#throttle #lever #ip68 #robertssmorgasbord
↓↓↓ Complete description, time index and links below ↓↓↓
We just continue where we left off in the first part (link below). In this second part we’ll see a machine vise, a rotary table, taps, a drill bit, a face milling cutter, T-slot nuts, a drill bit
00:00 Intro – picking up where we left oft
00:32 Drill bit – HSS, Ø 12mm, shaft Ø 10mm
01:31 Machine vise – Röhm 863422, 100mm jaws, 90mm open
04:58 Face milling cutter – 1”, 6mm shaft
06:49 Taps – sets of three for M2 and M6
08:35 Rotary table – 100mm, well, really 96mm
13:26 T-slot nuts – for PROXXON KT 150 compound table
15:38 LiYCY cable – 4 x 0.14mm², shielded
17:02 Router bit - HSS, Ø 12mm, shaft Ø 6mm
18:47 End mill - Ø 4mm, shaft Ø 4mm, length 100mm
20:09 T-slot nuts – for rotary table, not quite fitting
22:37 Lathe cutting tools – five piece set from PROXXON
27:00 Parallel blocks – 9 pairs 4mm x 10-42mm x 100mm
30:34 Wrap-up – now I have to clean up the mess, bye
Mailbags youtube.com/playlist?list=PLwq-2MnM58FL0P4F1o3NYB8MnralwhK3F
Mailbag: Lots of Tools (Machining) and Material (Aluminum, POM) Part 1 of 2 youtu.be/Sd51lL06qns
Proxxon KT 150 Compound Table Overhaul (Complete Teardown) youtu.be/lSS70lH0pPk
Proxxon BFW 40/E, BFB 2000, KT 150 Mill/Drill Combo “Unboxing”/Features youtu.be/AKdBRVT9RWs
#proxxon #postbag #robertssmorgasbord
↓↓↓ Complete description, time index and links below ↓↓↓
I bought that Proxxon milling combo about two years ago (link below). I already overhauled the KT 150 compound table and the BFW 40/E spindle (links below). But somehow I put off overhauling the BFB 2000 milling/drilling again and again.
Now I actually wanted to mill some parts, but my Proxxon BFB 2000 mill/drill stand was of course still dirty and its ways were still wobbling. I also found the column not to be perpendicular to the table. So I gave it some love.
►Intro
00:00 Intro – my mill/drill stand needs some love
►Disassembly
01:31 Column / Extension arm – just take it off
01:59 Extension arm / dovetail guide – don’t do it
03:14 Depth end stop – you can do this later
03:39 Adjustable guide bar – two set, one stop screw
05:03 Dovetail guide / carriage – just slides off
05:59 Function – just some explanations
07:28 Dovetail guide – couldn’t get it apart
10:52 Carriage – couldn’t get it apart either
►Cleaning
12:25 Water with detergent – getting debris off
14:41 Denatured alcohol – making it shiny
►Reassembly
22:05 Extension arm / dovetail guide – tricky
25:28 Depth end stop – just screw it in
26:05 Carriage / dovetail guide / guide bar – lubricate
30:28 Colum adjustment – get it perpendicular to table
36:25 Dovetail adjustment – playing with two setscrews
►Wrap-up
38:39 Wrap-up – it’s nice and tight now, bye
Repairs youtube.com/playlist?list=PLwq-2MnM58FIAycsmi3ZCjHmfGK3Tev7m
Teardowns youtube.com/playlist?list=PLwq-2MnM58FJPg01ooMBgy_CxDxAem0my
Proxxon BFW 40/E, BFB 2000, KT 150 Mill/Drill Combo “Unboxing”/Features youtu.be/AKdBRVT9RWs
Proxxon KT 150 Compound Table Overhaul (Complete Teardown) youtu.be/lSS70lH0pPk
Proxxon BFW 40/E Spindle Overhaul (Cleaned, Brushes Checked, Collet Polished) youtu.be/-ESUF7sI61Q
Proxxon BFW 40/E Spindle Power Supply Teardown (Circuit, Waveforms) youtu.be/kbZFDs10nTI
#proxxon #overhaul #overhauling #repair #repairing #fixing #teardown #disassembly #disassembling #robertssmorgasbord
↓↓↓ Complete description, time index and links below ↓↓↓
In this first part we’ll see some aluminum and POM stock, accessories for my PROXXON PD 250/E lathe and PROXXON BFW 40/E mill, aluminum and polyamide screws, and a lonely cable. All for my electronic Engine Control Lever (link below).
00:00 Intro – it’s hard not to open a parcel when it arrives
00:48 Aluminum stock – 6060, Ø 18 mm, Ø 5 mm, 20x5 mm
04:28 POM stock – 70x95x105 mm, 2 x 25x65x105mm, Ø 20mm
08:11 Lathe cutting tools – five piece set from PROXXON
11:51 Radius cutting attachment – for PROXXON PD 250/E lathe
13:31 Tailstock chuck – for PROXXON PD 250/E lathe
16:02 LiYCY cable – 4 x 0.34mm², shielded
17:18 Mill chuck – for PROXXON BFW 40/E
18:54 Aluminum cylinder head screws – M2x16, M6x12, M6x40
20:42 Ball end mill – Ø 5 mm, shaft 6 mm
22:03 Polyamide set screws – hexagon socket, flat point, M6x12
23:34 Polyamide screws – slotted, countersunk, M2x16
24:27 Wrap-up – time to take a break, part 2 coming soon, bye
Mailbags youtube.com/playlist?list=PLwq-2MnM58FL0P4F1o3NYB8MnralwhK3F
PROXXON Precision Lathe PD 250/E Unboxing and First Impressions youtu.be/Sd51lL06qns
Dual Electronic Engine Control Lever IP68 youtube.com/playlist?list=PLwq-2MnM58FLQ468e5-wzV6_MeqT4Zd5T
#proxxon #postbag #robertssmorgasbord
↓↓↓ Complete description, time index and links below ↓↓↓
I was in need of a lathe for small parts (20mm Ø by 30mm, see link below) that I could relatively easily carry around. In addition I wanted it to be working just fine out of the box and not to be a project in itself.
The carrying around part and my requirement for it to be working out of the box excluded the usual Chinese suspects (to heavy, too much work to make it work). So I ended up with a PROXXON Precision Lathe PD 250/E made in Germany.
00:00 Intro – I couldn’t get a used one, so I bought new one
00:51 Box – some pictures, some info, nothing exiting
02:27 Opening – lathe, paperwork and lots of parts
07:37 Assembly: Chuck – tight fit, attached with three screws
12:37 Assembly: Live center – MK1 taper, easy to remove
13:35 Assembly: Chuck guard – one screw with washer
14:32 Assembly: leadscrew handle – just screw it in
15:31 Gearbox – all metal pulleys and gears, lots of tables
18:17 Spindle passage – just 10.5 mm, but it’s there
18:38 Accessories - reverse jaws for chuck and shim set
19:14 Controls 1 – cross slide rotation, tailstock movement
20:53 Center distance – nominal 250 mm, about 200 mm usable
21:42 Controls 2 – wheels for lead screw, cross slide, top slide
22:55 First switch on – real quiet, only very little vibration
24:50 Wrap-up – expensive, but I like it, bye
Unboxings youtube.com/playlist?list=PLwq-2MnM58FLpgXvAMIiwf7fiyoDuEpWh
Dual Electronic Engine Control Lever IP68 (4): First Drawing, Final PCB Layout youtu.be/PJBEf1LOwcY
Proxxon Micromot MB 200 Drill Stand Unboxing, Detailed Review and Test youtu.be/mVmlZQz_OFI
Proxxon Micromot MB 200 Drill Stand Teardown, Rework and Reassembly youtu.be/akoKPEO_ggc
Proxxon Micromot MB 200 Drill Stand Mid-Travel Jamming Fix youtu.be/bmnKAnYFkbk
#proxxon #lathe #unboxing #firstimpressions #robertssmorgasbord
↓↓↓ Complete description, time index and links below ↓↓↓
After that first LEGO® Technic™ prototype (link below), an even smaller LEGO® model (link below) and some friction estimations it was time to come up with a preliminary drawing and, subsequently, a final layout for the mainboard.
00:00 Intro – first drawing, more friction and final PCB layout
00:53 Drawing: Overview – front, side and bottom
01:27 Drawing: Side – lever, stop/assembly screws, friction mechanism
08:01 Friction again – required spring force, springs available
10:40 Drawing: Bottom – holes for electronics and screws, O-ring groove
13:08 Drawing: Front – handles, levers, shafts, side bodies, main body
18:28 Final PCP layout – of the motherboard
21:35 Wrap-up – next we’re actually building something, bye
Dual Electronic Engine Control Lever IP68 youtube.com/playlist?list=PLwq-2MnM58FLQ468e5-wzV6_MeqT4Zd5T
Dual Electronic Engine Control Lever IP68 (1): Project Kick-Off youtu.be/hPBkBoe81jY
Dual Electronic Engine Control Lever IP68 (2): 1st LEGO® Technic™ Prototype youtu.be/rH1zjXptJrg
Dual Electronic Engine Control Lever IP68 (3): LEGO® Model, PCB Layout, Friction youtu.be/XZdhH0JCDWA
#throttle #lever #ip68 #robertssmorgasbord
↓↓↓ Complete description, time index and links below ↓↓↓
I cobbled together a non-functional LEGO® model, just to see how everything would fit together. Going from there I did an initial design for the PCB. Finally I verified – really falsified – my initial estimate for the spring force to create friction/torque.
00:00 Intro – smaller LEGO® model, initial PCB layout, forces revisited
01:32 Small LEGO® model – how everything will (hopefully) fit together
06:38 Initial PCB layout – as narrow as possible, otherwise not much to it
10:36 Friction revisited – spring pressure measured via torque and friction
19:10 Wrap-up – next up is the initial layout for the circuit board, bye
Dual Electronic Engine Control Lever IP68 youtube.com/playlist?list=PLwq-2MnM58FLQ468e5-wzV6_MeqT4Zd5T
Dual Electronic Engine Control Lever IP68 (2): 1st LEGO® Technic™ Prototype youtu.be/rH1zjXptJrg
Dual Electronic Engine Control Lever IP68 (1): Project Kick-Off youtu.be/hPBkBoe81jY
#throttle #lever #ip68 #robertssmorgasbord
↓↓↓ Complete description, time index and links below ↓↓↓
I already had a working LEGO® Technic™ test jig for two A1335 Hall effect angle sensors (links below). It just had to be made more compact, levers added and the angle of movement for each lever needed to be restricted to about ±60°.
00:00 Intro – smaller LEGO® Technic™ jig, approaching the target dimensions
00:33 Lever assembly – springs inline (narrower), more spring force (shorter)
10:15 Size comparison – saved two studs in length and three studs in width
11:05 Assembly – a new base and some lipstick on the pig
14:16 Overall dimensions – still a wee bit too large, but we’re getting there
14:59 Spring force – just measuring (really estimating) it for future reference
15:58 Wrap-up – next up is the initial layout for the circuit board, bye
Dual Electronic Engine Control Lever IP68 youtube.com/playlist?list=PLwq-2MnM58FLQ468e5-wzV6_MeqT4Zd5T
Dual Electronic Engine Control Lever IP68 (1): Project Kick-Off youtu.be/hPBkBoe81jY
#throttle #lever #ip68 #robertssmorgasbord
↓↓↓ Complete description, time index and links below ↓↓↓
So I want to build a watertight (IP68) dual electronic throttle lever, respectively, engine control lever. In this video – the project kick-off – I’ll outline what I’m going for exactly.
First we have a look at some off-the-shelf examples. Then we talk about IP68 vs IP67 and how I plan to achieve water tightness. Finally we dive into the math and physics of friction, torque and moment.
00:00 Intro – an dual electronic engine control lever, IP68
01:05 Examples – so we know what we’re talking about
05:14 IP68 vs IP67 – more/less water-resistant/-proof/-tight
07:54 Watertight – just the electronics, no seals on rotating shafts
09:30 Compact – planned changes to LEGO® Technic™ test jig
10:32 Friction – some math and physics, ABS vs aluminum
17:41 Wrap-up – enough about the A1335 for now, bye
Dual Electronic Engine Control Lever IP68 youtube.com/playlist?list=PLwq-2MnM58FLQ468e5-wzV6_MeqT4Zd5T
Allegro A1335 Hall Effect Angle Sensor, I2C and Arduino – The Basics youtu.be/b_1zqg0UZw0
Allegro A1335 Hall Effect Angle Sensor, I2C and Arduino – The Details (1) youtu.be/Y7G-xwPNqxI
Allegro A1335 Hall Effect Angle Sensor, I2C and Arduino – The Details (2) youtu.be/N613LV-wd1g
Allegro A1335 Hall Effect Angle Sensor, I2C and Arduino – The Details (3) youtu.be/AmaoXhydWIk
Allegro A1335 Hall Effect Angle Sensor, I2C and Arduino – The Details (4) youtu.be/RllH7C1EnKM
Allegro A1335 Hall Effect Angle Sensor, I2C and Arduino – The Details (5) youtu.be/n1ULQ1GVoOc
Allegro A1335 Hall Effect Angle Sensor, I2C and Arduino – The Details (6) youtu.be/PSys1Hp9JOA
Allegro A1335 Hall Effect Angle Sensor, I2C and Arduino – The Details (7) youtu.be/E37hL-k9jiY
Allegro A1335 Hall Effect Angle Sensor, I2C and Arduino – The Details (8) youtu.be/TcJg9gNquMs
LEGO® Technic™ Test Jig for Allegro A1335 Hall Effect Angle Sensors youtu.be/aThE881fI68
Hall Effect Angle Sensors (Arduino, Allegro A1334 and SPI) – The Basics (1/3) youtu.be/t323DEj0k_s
Hall Effect Angle Sensors (Arduino, Allegro A1334 and SPI) – The Basics (2/3) youtu.be/E0t62Gfjvhk
Hall Effect Angle Sensors (Arduino, Allegro A1334 and SPI) – The Basics (3/3) youtu.be/AXk_OUGTSJQ
#throttle #lever #ip68 #robertssmorgasbord
↓↓↓ Complete description, time index and links below ↓↓↓
In part seven we looked at the theory of the harmonic and segmented linearization, respectively, error correction, the A1335 is capable of. Now it’s time to actually make use of the A1335’s segmented linearization.
But before we can do that, we first have to measure the error we want to correct using an external angle decoder. Then we extend our library, so we can upload our linearization coefficients to the A1335. Finally we test the whole thing.
00:00 Intro – picking up where we left off last time
01:06 Error measurements – with external angle encoder
04:17 Segmented linearization code – writing 15 values to RAM
10:21 Test sketch – writing the measured values to the A1335
11:47 Test results – errors down to less than a degree
14:03 Wrap-up – enough about the A1335 for now, bye
Tutorials youtube.com/playlist?list=PLwq-2MnM58FKn3920rc1V0qoTsQDheTIw
Allegro A1335 Hall Effect Angle Sensor, I2C and Arduino – The Basics youtu.be/b_1zqg0UZw0
Allegro A1335 Hall Effect Angle Sensor, I2C and Arduino – The Details (1) youtu.be/Y7G-xwPNqxI
Allegro A1335 Hall Effect Angle Sensor, I2C and Arduino – The Details (2) youtu.be/N613LV-wd1g
Allegro A1335 Hall Effect Angle Sensor, I2C and Arduino – The Details (3) youtu.be/AmaoXhydWIk
Allegro A1335 Hall Effect Angle Sensor, I2C and Arduino – The Details (4) youtu.be/RllH7C1EnKM
Allegro A1335 Hall Effect Angle Sensor, I2C and Arduino – The Details (5) youtu.be/n1ULQ1GVoOc
Allegro A1335 Hall Effect Angle Sensor, I2C and Arduino – The Details (6) youtu.be/PSys1Hp9JOA
Allegro A1335 Hall Effect Angle Sensor, I2C and Arduino – The Details (7) youtu.be/E37hL-k9jiY
LEGO® Technic™ Test Jig for Allegro A1335 Hall Effect Angle Sensors youtu.be/aThE881fI68
My code drive.google.com/drive/folders/1gb1ljFbjrcMzGOJW4XM5Vg9lhnOtk9fP?usp=sharing
#halleffect #angle #rotary #sensor #arduino #microcontroller #tutorials #tutorial #how-to #robertssmorgasbord
↓↓↓ Complete description, time index and links below ↓↓↓
In part six took the first steps toward linearization, setting the pre-linearization rotation direction and zero offset (link below). Now it’s time to have a look at the actual linearization, respectively, error correction functions of the A1335.
We start off with a theoretical overview, covering the A1335’s harmonic and segmented linearization features. Unfortunately the video was cut short just there, because I caught the flu …
00:00 Intro – let’s set the pre-linearization rotation and offset
01:29 Linearization – harmonic or segmented
03:28 Harmonic linearization – Fourier transformation of the error
09:43 Segmented linearization – simple, two variants available
15:04 Wrap-up – have to cut it short here, next up the code, bye
Tutorials youtube.com/playlist?list=PLwq-2MnM58FKn3920rc1V0qoTsQDheTIw
Allegro A1335 Hall Effect Angle Sensor, I2C and Arduino – The Basics youtu.be/b_1zqg0UZw0
Allegro A1335 Hall Effect Angle Sensor, I2C and Arduino – The Details (1) youtu.be/Y7G-xwPNqxI
Allegro A1335 Hall Effect Angle Sensor, I2C and Arduino – The Details (2) youtu.be/N613LV-wd1g
Allegro A1335 Hall Effect Angle Sensor, I2C and Arduino – The Details (3) youtu.be/AmaoXhydWIk
Allegro A1335 Hall Effect Angle Sensor, I2C and Arduino – The Details (4) youtu.be/RllH7C1EnKM
Allegro A1335 Hall Effect Angle Sensor, I2C and Arduino – The Details (5) youtu.be/n1ULQ1GVoOc
Allegro A1335 Hall Effect Angle Sensor, I2C and Arduino – The Details (6) youtu.be/PSys1Hp9JOA
#halleffect #angle #rotary #sensor #arduino #microcontroller #tutorials #tutorial #how-to #robertssmorgasbord
↓↓↓ Complete description, time index and links below ↓↓↓
In part four we’ve covered writing to extended addresses and wrote one to set the A1335’s output rate (link below). Part five was kind of an intermezzo, where we measured the noise levels and had a look at the DSP capabilities (link below).
It’s time to make the first steps towards linearization. We’ll start with the algorithm enable flags, and use one to set the direction of rotation. Then we’ll set the linearization offset to achieve a proper zero point for our angle measurements.
00:00 Intro – let’s set the pre-linearization rotation and offset
01:24 Algorithm enable – flags to control the digital signal processing
07:12 Algorithm enable code – partial extended write, writing flags
12:32 Linearization offset – a 16-bit unsigned integer to set zero degrees
13:36 Linearization offset code – writing it as unsigned integer or float
17:12 Test sketch – setting rotation direction and zero offset
20:45 Test results – correct rotation direction and zero point
25:34 Wrap-up – next up is the linearization itself, bye
Tutorials youtube.com/playlist?list=PLwq-2MnM58FKn3920rc1V0qoTsQDheTIw
Allegro A1335 Hall Effect Angle Sensor, I2C and Arduino – The Basics youtu.be/b_1zqg0UZw0
Allegro A1335 Hall Effect Angle Sensor, I2C and Arduino – The Details (1) youtu.be/Y7G-xwPNqxI
Allegro A1335 Hall Effect Angle Sensor, I2C and Arduino – The Details (2) youtu.be/N613LV-wd1g
Allegro A1335 Hall Effect Angle Sensor, I2C and Arduino – The Details (3) youtu.be/AmaoXhydWIk
Allegro A1335 Hall Effect Angle Sensor, I2C and Arduino – The Details (4) youtu.be/RllH7C1EnKM
Allegro A1335 Hall Effect Angle Sensor, I2C and Arduino – The Details (5) youtu.be/n1ULQ1GVoOc
My code drive.google.com/drive/folders/1nyOgEx7O63L0VR9HXH0s6KQf1XFeXoJn?usp=sharing
#halleffect #angle #rotary #sensor #arduino #microcontroller #tutorials #tutorial #how-to #robertssmorgasbord
↓↓↓ Complete description, time index and links below ↓↓↓
In part four we’ve covered writing to extended addresses and wrote one to set the A1335’s output rate (link below). The term “output rate” is a bit misleading, because this setting really determines over how many samples the chip averages.
That of course directly influences the noise level on the final angle readings. So this time we’ll have a detailed look at the noise levels at different output rate setting. And I’ll give you an overview about the other signal processing capabilities.
00:00 Intro – let’s have a look at the noise and what the A1335 can do
00:57 Output rate settings – a quick recap (samples/period/frequency)
02:43 Noise measurements – at all eight output rate settings
08:58 Noise summary – from 6 LSB noise at 1 sample to 0 at 128 samples
12:05 Signal processing overview – averaging, IIR filter, linearization and more
19:30 Wrap-up – next up are the pre-linearization settings, bye
Tutorials youtube.com/playlist?list=PLwq-2MnM58FKn3920rc1V0qoTsQDheTIw
Allegro A1335 Hall Effect Angle Sensor, I2C and Arduino – The Basics youtu.be/b_1zqg0UZw0
Allegro A1335 Hall Effect Angle Sensor, I2C and Arduino – The Details (1) youtu.be/Y7G-xwPNqxI
Allegro A1335 Hall Effect Angle Sensor, I2C and Arduino – The Details (2) youtu.be/N613LV-wd1g
Allegro A1335 Hall Effect Angle Sensor, I2C and Arduino – The Details (3) youtu.be/AmaoXhydWIk
Allegro A1335 Hall Effect Angle Sensor, I2C and Arduino – The Details (4) youtu.be/RllH7C1EnKM
#halleffect #angle #rotary #sensor #arduino #microcontroller #tutorials #tutorial #how-to #robertssmorgasbord
↓↓↓ Complete description, time index and links below ↓↓↓
In part three we’ve covered reading extended addresses and read one to get the A1335’s ROM version (link below). But our code was flawed. Instead of polling the read done flag as recommended, it just waited for a fixed time.
So we’ll first revisit the reading of extended addresses and implement polling of the read done flag as well as a time-out for that. Then we move on to writing extended addresses. We’ll use that to set the output rate of our A1335.
00:00 Intro – let’s revisit reading extended addresses first
01:34 Reading extended addresses revisited – polling and time-out
15:54 Writing extended addresses – three registers and two flags
19:09 Extended addresses methods – the related code in the library
24:41 Keycode extended address – unlocking protected capabilities
25:29 Keycode method – unlocking the protected capabilities
26:29 Output rate extended address – averaging 1 to 128 samples
30:09 Output rate methods – reading and setting the output rate
33:17 Test sketch – setting the output rate to 250Hz
36:25 Test results – output rate set to 250Hz
38:04 Wrap-up – next up noise levels at different output rates, bye
Tutorials youtube.com/playlist?list=PLwq-2MnM58FKn3920rc1V0qoTsQDheTIw
Allegro A1335 Hall Effect Angle Sensor, I2C and Arduino – The Details (1) youtu.be/Y7G-xwPNqxI
Allegro A1335 Hall Effect Angle Sensor, I2C and Arduino – The Details (2) youtu.be/N613LV-wd1g
Allegro A1335 Hall Effect Angle Sensor, I2C and Arduino – The Details (3) youtu.be/AmaoXhydWIk
My code drive.google.com/drive/folders/1nU7G8f-aGjpPKLsZz6t6XCm4go75Rioe?usp=sharing
#halleffect #angle #rotary #sensor #arduino #microcontroller #tutorials #tutorial #how-to #robertssmorgasbord
↓↓↓ Complete description, time index and links below ↓↓↓
In the first two parts we’ve covered all of the primary registers, which enable basic operation of the A1335 (links below). But the A1335 has also over 60 extended addresses that allow you to access its advanced functionality.
These extended addresses can only be accesses through the primary registers. In this video we’ll extend our library with a function to read from those extended addresses. To test our code we’ll read out the 64 bit ROM version for the A1335.
00:00 Intro – it’s time to have a look at the extended “registers”
00:47 Extended addresses overview – SRAM, EEPROM and commands
07:55 Reading extended addresses – three registers and two flags
14:55 Extended address methods – the related code in the library
23:38 Test sketch – reading ROM versions during setup
24:20 Test results – correct ROM version read
25:06 Wrap-up – next up is writing extended addresses, bye
Tutorials youtube.com/playlist?list=PLwq-2MnM58FKn3920rc1V0qoTsQDheTIw
Allegro A1335 Hall Effect Angle Sensor, I2C and Arduino – The Details (1) youtu.be/Y7G-xwPNqxI
Allegro A1335 Hall Effect Angle Sensor, I2C and Arduino – The Details (2) youtu.be/N613LV-wd1g
My code drive.google.com/drive/folders/1J6y6Km3rLkdmT2P7LuNQ6CjBknWEdZ-v?usp=sharing
#halleffect #angle #rotary #sensor #arduino #microcontroller #tutorials #tutorial #how-to #robertssmorgasbord
↓↓↓ Complete description, time index and links below ↓↓↓
In part one we’ve covered the first five of the primary registers, enabling us to properly initialize our two Allegro A1335 and to read angles from them while detecting errors. But there are four more primary registers left we need to have a look at.
Two of these registers will yield us additional data – internal chip temperature and magnetic field strength – and the other two could be used to mask errors, respectively, extended errors, if we choose at some point to do so.
00:00 Intro – four more primary registers
00:42 Temperature register – register identifier plus temperature
01:12 Temperature methods – reading, Kelvin, Celsius and raw data
03:16 Field register – register identifier plus magnetic field strength
03:41 Filed methods – reading and field strength in Gauss
04:44 Error mask register – masking all errors, but extended errors
05:32 Error mask methods – writing a bit mask to mask the errors
06:33 Extended error mask register – masking all extended errors
07:15 Extended Error mask methods – writing a bit mask (again)
07:47 Test sketch – adding temperature and magnetic field strength
08:29 Test results –measuring temperature and field strength too
10:41 Wrap-up – next up are the extended registers, bye
Tutorials youtube.com/playlist?list=PLwq-2MnM58FKn3920rc1V0qoTsQDheTIw
Allegro A1335 Hall Effect Angle Sensor, I2C and Arduino – The Details (1) youtu.be/Y7G-xwPNqxI
My code drive.google.com/drive/folders/1kIjadDGiz41Uua59TOn9wL5ss8_zga8B?usp=sharing
#halleffect #angle #rotary #sensor #arduino #microcontroller #tutorials #tutorial #how-to #robertssmorgasbord
↓↓↓ Complete description, time index and links below ↓↓↓
In the basics we’ve created some breakout boards for the Allegro A1335 and got two of them up and running using an existing library from the internet (link below). However, that library, while kinda working, lacked in some respects
So this time we’ll start to write our own library to unlock the full potential of the A1335. Anyway, after covering some library basics we’ll write code for handling the first five primary registers, including the angle register of course.
00:00 Intro – a better Arduino library for the A1335
01:06 Register overview – primary 16 bit and extended 32 bit
05:42 Library basics – constructor, error handling and I2C operations
10:31 Control register – run/idle, hard/soft reset and clear registers
12:43 Control methods – library code for the control register
17:00 Angle register – four bits (ID, error, new, parity) and 12 bit angle
19:02 Angle methods – reading, angle raw/degree and angle new
22:56 Error register – 11 error flags plus an extended error flags
25:10 Error methods – reading, testing flags, flag functions
28:02 Extended error register – 12 extended error flags
30:28 Extended Error methods – reading, testing flags, flag functions
31:37 Revisiting begin() – it takes a bit to get the A1335 up and running
33:03 Test sketch – just initialization and reading angles
35:04 Test results – two perfectly measured angles
36:06 Wrap-up – next up are the remaining primary registers, bye
Tutorials youtube.com/playlist?list=PLwq-2MnM58FKn3920rc1V0qoTsQDheTIw
Allegro A1335 Hall Effect Angle Sensor, I2C and Arduino – The Basics youtu.be/b_1zqg0UZw0
LEGO® Technic™ Test Jig for Allegro A1335 Hall Effect Angle Sensors youtu.be/aThE881fI68
QST QMC5883L 3-Axis Digital Compass and Arduino MCU – The Details (1) youtu.be/NTDS2Vmnr-4
#halleffect #angle #rotary #sensor #arduino #microcontroller #tutorials #tutorial #how-to #robertssmorgasbord
Keywords
Robert's Smorgasbord, Robert’s Smorgasbord, tutorial, tutorials, how-to, Arduino, MCU, microcontroller, Allegro, A1335, Allegro A1335, hall effect, rotary position, hall effect sensor, angle sensor, rotary sensor, rotary position sensor, hall effect angle sensor, hall effect rotary sensor, hall effect rotary position sensor, I2C, Two-Wire, 2 Wire, 2-Wire, Wire, library, sketch, Arduino library, Arduino sketch, Arduino A1335 library, A1335 Arduino library, Arduino A1335 sketch
Cards
00:00 “More tutorials …” Tutorials youtube.com/playlist?list=PLwq-2MnM58FKn3920rc1V0qoTsQDheTIw
00:20 Allegro A1335 Hall Effect Angle Sensor, I2C and Arduino – The Basics youtu.be/b_1zqg0UZw0
00:46 LEGO® Technic™ Test Jig for Allegro A1335 Hall Effect Angle Sensors youtu.be/aThE881fI68
08:56 QST QMC5883L 3-Axis Digital Compass and Arduino MCU – The Details (1) youtu.be/NTDS2Vmnr-4
↓↓↓ Complete description, time index and links below ↓↓↓
In one of my last videos I got two Allegro A1335 Hall effect rotational position sensors up and running (link below). Now I was in need of a test jig that could rotate two magnets in a controlled fashion and featured repeatable zero positions.
Of course I resorted to my old LEGO® Technic™ collection for that purpose. But I was no able to implement everything with the parts I have. So I slightly modify some LEGO® rims (milled notches) and pulleys (made space for magnets).
00:00 Intro –we want to achieve (friction, zero position)
02:09 Build part I – Houston, we have friction!
07:27 Milling intermezzo – maiming LEGO® Technic™ parts
10:09 Build part II – Now I have a zero position detent Ho-Ho-Ho
15:36 Build part II – I’ve been framed!
18:56 Wrap-up – a perfect test jig, a hint and bye
Small Projects: youtube.com/playlist?list=PLwq-2MnM58FIYvR6bny0fwgH4PFyIIeqR
Hall Effect Angle Sensors (Arduino, Allegro A1335 and I2C) – The Basics youtu.be/b_1zqg0UZw0
Hall Effect Angle Sensors (Arduino, Allegro A1334 and SPI) – The Basics (1/3) youtu.be/t323DEj0k_s
Hall Effect Angle Sensors (Arduino, Allegro A1334 and SPI) – The Basics (2/3) youtu.be/E0t62Gfjvhk
Hall Effect Angle Sensors (Arduino, Allegro A1334 and SPI) – The Basics (3/3) youtu.be/AXk_OUGTSJQ
#lego #legotechnic #project #projects #build #electronicproject # electronicsprojects #robertssmorgasbord
↓↓↓ Complete description, time index and links below ↓↓↓
Another unplanned video: So I shot the unboxing of a Chinese inflatable boat (link below) and the included air pump broke after about five minutes. So I searched on Amazon for a cheap, but maybe a bit more durable and capable replacement.
I stumble about this one from High Peak for 15€ plus shipping. Funnily enough I also saw the air pump I just broke listed there – for a bit less than 10€. Considering that the High Peak pumps four times more air and is much sturdier a no brainer.
00:00 Intro – an unplanned, impromptu unboxing
00:33 Box – not a huge amount of information
02:25 Pump – more information and detailed views
07:57 Amazon listing – just 15 bucks now
08:19 Wrap-up – see it in action, bye
Unboxings youtube.com/playlist?list=PLwq-2MnM58FLpgXvAMIiwf7fiyoDuEpWh
Reviews youtube.com/playlist?list=PLwq-2MnM58FIJjuha_h96kWhQR9aSmeAN
Chinese Inflatable Boat (Intime Plastics 300 YT-098A) Unboxing youtu.be/K6v4ussf5iU
#airpump #unboxing #test #review #firstimpressions #robertssmorgasbord
↓↓↓ Complete description, time index and links below ↓↓↓
Another video I haven’t planned to do, but the family gifted me an inflatable boat for my birthday, so I felt obligated to upload a video about it in a timely manner. It’s a Chinese one, and everything from oars to an air pump is included.
While the unboxing itself went smoothly, inflating it came to an abrupt end, when the included air pump broke. No worries, I got a bigger, better one (link below). In the end that boat is a fun toy (not quite up to its specs) and will serve its purpose.
00:00 Intro – a birthday present
00:28 Box – huge amount of information
04:42 Unboxing – everything is included
06:07 Oars – 3 pieces, length 125 cm
09:26 Air pump – a simple single action affair
10:39 Inflating I – until the air pump broke
13:50 Inflating II – continuing with a new pump
16:26 Outfitting – line, oars, rod holders
18:35 Data – dimensions and weights
21:12 Wrap-up – it’s a toy, so it’s OK, bye
Unboxings youtube.com/playlist?list=PLwq-2MnM58FLpgXvAMIiwf7fiyoDuEpWh
Reviews youtube.com/playlist?list=PLwq-2MnM58FIJjuha_h96kWhQR9aSmeAN
2 Liters Double Action Air Pump (High Peak 49702) Unboxing youtu.be/gyHGWg_vXUg
#boat #dinghy #inflatable #inflatableboat #madeinchina #unboxing #test #review #firstimpressions #robertssmorgasbord
↓↓↓ Complete description, time index and links below ↓↓↓
The videos about the A1334 (links below) covered all the basics of Hall Effect angle, respectively, rotary position sensors. So this will be the only “The Basics” video about the A1335, just showing how to get the thing up and running using I2C.
We start of course with a look into the A1335 datasheet and a little comparison with the A1334. This is followed by the design of breakout boards for the A1335’s TSSOP-14 package. Finally we hunt for an Arduino library and test everything.
00:00 Intro – the A1334 is dead (obsolete), long live the (available) A1335
02:12 A1335 Datasheet – an A1334 with 32-bit CPU and more interfaces
09:39 Breakout boards – all you’ll need for I2C operation on a tiny PCB
17:22 Breadboard circuit – straight forward, but for the pull-up values
20:45 Arduino libraries – they do exist, but nothing to write home about
24:58 Arduino sketch – a simple affair, just writing the angles to serial
28:04 Initial test – everything works just fine, but the library is lacking
31:05 Wrap-up – next is a better LEGO® Technic™ jig and the details, bye
Tutorials youtube.com/playlist?list=PLwq-2MnM58FKn3920rc1V0qoTsQDheTIw
Hall Effect Angle Sensors (Arduino, Allegro A1334 and SPI) – The Basics (1/3) youtu.be/t323DEj0k_s
Hall Effect Angle Sensors (Arduino, Allegro A1334 and SPI) – The Basics (2/3) youtu.be/E0t62Gfjvhk
Hall Effect Angle Sensors (Arduino, Allegro A1334 and SPI) – The Basics (3/3) youtu.be/AXk_OUGTSJQ
GitHub - ScranchNew / Allegro-A1335-Sensor-library github.com/ScranchNew/Allegro-A1335-Sensor-library
GitHub - Roboy / A1335_Utils github.com/Roboy/A1335_Utils
My code drive.google.com/drive/folders/1m7szGv7DvwOxW_sZ-VLRbXQTUNkXlkZ8?usp=sharing
#halleffect #angle #rotary #sensor #arduino #microcontroller #tutorials #tutorial #how-to #robertssmorgasbord
↓↓↓ Complete description, time index and links below ↓↓↓
It was just a short trip with the larger family to the island of Usedom (Polish: Uznam). The island is pretty much embedded into the coastline, the north-east facing the Baltic Sea. Most of it belongs to Germany but the east end belongs to Poland.
Before the German reunification the island was part of the German Democratic Republic (GDR) aka East Germany. One of the main attractions is the related museum. But fear not, there were some old school calculators and oscilloscopes too.
00:00 Intro – the island of Usedom and the Baltic Sea
00:34 Beach and coast – endless beach, varying coast
02:38 German/Polish border – modern history
06:25 Fort Zachodni in Świnoujście – just coming through
06:55 Harbor in Świnoujście – a small commercial one
08:04 Fort Anioła in in Świnoujście - just a quick look
08:40 Fort Zachodni in Świnoujście – this time in detail
11:37 Museum of the GDR – that is East Germany
25:17 Mechanical calculators – plus scopes, variacs etc.
25:51 Disney’s Frozen photoshoot – with the family
26:10 Wrap-up – a beautiful sunset and bye
Outdoor: youtube.com/playlist?list=PLwq-2MnM58FJekqV0UsvqU3sf8tO0bj5e
#balticsea #beach #gdr #museum #poland #germany #forts #outdoor #robertssmorgasbord
↓↓↓ Complete description, time index and links below ↓↓↓
The day before we went on the second leg of our vacation the washing machine stopped working. So when we returned the first order of the day was to get that thing up and running again. Unfortunately the failure was very unspecific.
If you started a program you heard the relays clicking in an endless repeating pattern. Just once the thing displayed a failure “F22”. So I carried out the procedure suggested for that error – reseating all connectors – but to no avail.
00:00 Preface – first shoot after the vacation, not the one I wanted
00:47 Intro – a dead washing machine with an intermittent error F22
02:17 Top cover removal – real easy, just two screws
03:22 Electronics – first look, connectors surprisingly easy to remove
04:16 Front panel removal – not so easy, found some odd sized screws
06:22 Electronics connectors reseated – just went through the motions
06:56 Front panel reattached – a bit fiddly, replaced some screws
08:20 Back cover removal – quite easy, but a plastic part came loose
10:04 Motor connectors reseated – not so easy to reach
11:21 Back cover reattached – beware of all the sharp edges
12:56 Top cover reattached – latches at the front, screws at the back
13:25 Test – all was for naught, it’s still dead as a dodo
15:06 Wrap-up – yes, there was more I could have done, bye
Repairs: youtube.com/playlist?list=PLwq-2MnM58FIAycsmi3ZCjHmfGK3Tev7m
Washing Machine / Dryer Controller Board Repair (LNK305 Failure) youtu.be/IJEkP6iIN2E
#washingmachine #washingmachinerepair #teardown #disassembly #disassembling #repair #fix #robertssmorgasbord
↓↓↓ Complete description, time index and links below ↓↓↓
Some of you have already suspected that I’m planning to get into boating. Don’t worry, it’s a long term, respectively, retirement project, and it will involve lots of electronics.
Anyway, while visiting my sister in Spain I decided to use the opportunity and got the entry-level Spanish boating license (Licencia de Navegación). There’s also a bit of footage of superyachts, the town and the coast.
00:00 Boating course – for the Spanish “Licencia de Navegación”
05:14 Harbor – having a look at the superyachts
08:14 Along the coast – I cut that down quite a bit
20:11 Refueling the boat – and docking at the gas station
27:16 Further into the harbor – and practicing maneuvers
32:06 Walk along the coast – just a few impressions
Outdoor: youtube.com/playlist?list=PLwq-2MnM58FJekqV0UsvqU3sf8tO0bj5e
#denia #spain #mediterranean #mediterraneansea #boating #superyachts #outdoor #robertssmorgasbord
↓↓↓ Complete description, time index and links below ↓↓↓
… both already in a kinda self-disassembling state. That is the mouse put up some resistance, hiding two screws from me.
Anyway, I already showed those items in the last scrapheap scavenge (link below).
Of course we’ll have a close look at all the chips needed to get these devices running: one system on a chip (SoC) plus some supporting stuff in each case. The lesson is that nowadays there is a SoC for every commodity application.
00:00 Intro – an USB Ethernet stick and a wireless mouse
00:33 USB Ethernet stick – fell apart by itself, board close-ups
02:16 ASIX AX88772B – USB 2.0 to Fast Ethernet chip
02:58 DELTA LF8505 – 10/100Base-Tx Transformer
06:14 B&N Bluetooth Mouse – harder to crack
10:57 Board – with a vertical daughter board
14:10 AIROHA AB1120J – Bluetooth SoC for HID
15:25 PIXART PAN3204DB – Optical Mouse Sensor
16:43 Wrap-up – SoCs for commodity applications, bye
Teardowns youtube.com/playlist?list=PLwq-2MnM58FJPg01ooMBgy_CxDxAem0my
Scrapheap Scavenge: Twenty Small Items youtu.be/jTmR1rfSBy4
#usb #ethernet #mouse #bluetooth #wirelessmouse #teardown #disassembly #disassembling #robertssmorgasbord
↓↓↓ Complete description and links below ↓↓↓
Just me rambling about some general stuff and local specifics of the landscape, while taking a stroll through the North German Lowlands, also known as the North German Plain.
Outdoor: youtube.com/playlist?list=PLwq-2MnM58FJekqV0UsvqU3sf8tO0bj5e
DJI Osmo Action, Spare Batteries & Cheap Accessories Unboxing & 1ˢᵗ Impressions youtu.be/TK4WfY1UyKg
#outdoor #northgermany #plain #swamp #robertssmorgasbord
↓↓↓ Complete description, time index and links below ↓↓↓
You always thought you knew your hardware serial ports. But there’s a dark secret kept by the Arduino Nano Every community. In fact there are four USART / UART units in the ATmega4809. And only two are used as Serial and Serial1.
With a bit of tinkering, you can make the two unused ones available as Serial2 and Serial3 within the Arduino IDE. The question is, how will you handle having not only the two hardware serial ports you knew all your life, but four.
00:00 Intro – there’s a dark secret
01:33 Credits – go all to Kevin
01:53 ATmega4809 USARTs – there are four of them
02:55 pins_arduino.h – for the Nano Every modified
06:11 Test – four hardware serials daisy chained
09:06 Words of advice – beware of updates, things might break
09:37 Wrap-up –
Tutorials youtube.com/playlist?list=PLwq-2MnM58FKn3920rc1V0qoTsQDheTIw
RS-422 Differential Signaling (Renesas ISL8490, Arduino MCU) – The Basics (1/2) youtu.be/6YWZMRe-7DQ
RS-422 Differential Signaling (Renesas ISL8490, Arduino MCU) – The Basics (2/2) youtu.be/hoZ4D2Tk9Qc
Kevin’s Blog: Arduino Nano Every Serial Ports emalliab.wordpress.com/2021/12/16/arduino-nano-every-serial-ports
My code drive.google.com/drive/folders/1bakcJHh_p33_SQiVrDbFZ16A-MGAT9oj?usp=sharing
#arduino #arduinonano #serial #uart #atmega #microcontroller #tutorials #tutorial #how-to #robertssmorgasbord
↓↓↓ Complete description, time index and links below ↓↓↓
A very big thank you to you all for 5000 subscriptions. Also, a very special thank you to everybody who commented on my videos and engaged in a discussion with me. Finally, a thank you to those who rated my videos, even if you disliked them 😅
I also have questions for you: Do you see ads when watching my channel (it’s not monetized)? If you see ads, should I monetize it to escape YouTube’s throttling of non-monetized channels? And do you know how to bring back the dislikes?
00:00 5000 Subscribers! – A big thank you!
01:08 Advertisements – There are ads on my non-monetized videos?!?
02:07 Growth – YouTube throttles channel despite showing ads on it?!?
03:22 Monetizing – What do you think? Please let me know!
05:40 Dislikes – Did you know you can bring them back?
07:10 Wrap-up – A big thank you again! Bye!
Channel Announcements youtube.com/playlist?list=PLwq-2MnM58FKhnNBwzjgW_fQHk1yQzjZY
Return YouTube Dislikes returnyoutubedislike.com
#5000subscriberscelebration #comments #likes #dislikes #advertisements #monetization #dislikesremoved #channel #announcement #robertssmorgasbord
↓↓↓ Complete description, time index and links below ↓↓↓
Just twenty small items I picked up from “for free” boxes and bulky waste heaps in front of apartment buildings.
00:00 Intro – stuff out of “for free” boxes in front of apartment buildings
00:34 B&N wireless mouse – something for a teardown
01:03 Folding knife – stainless and locking
01:43 Multi-tool – promotional item, not a Leatherman
02:37 Bike multi-tool – at least that’s what I think it is
03:08 Two screwdrivers – one bend, both a bit rusty
03:40 Ethernet cable – very thin, 15m, gigabit (maybe)
04:26 Five DVD+R – Intenso 8.5 GB, double layered
05:08 USB Ethernet stick – 100MB/s, not working
07:47 Two USB wall warts – Samsung 1.55 A, Busch+Müller 1A
09:34 JBL USB cable – short but sweet, probably silicon
09:59 Mystery USB adapter – USB to barrel jack and more
10:41 Wall wart – 4.2V ± 0.5V, 500mA for Li-ion charging?
11:33 Barrel jack adapters – always nice to have
12:04 Bike backlight 1 – large, run by two AA batteries
12:50 Bike light holder – unfortunately not for that backlight
13:47 Bike backlight 2 – small, run by two coin cells
15:12 Plastic hose clamp – no idea what’s that for
15:59 Nice lanyard – solid nylon cord with rubber eyes
16:41 Wrap-up – group picture of items, bye
Scrapheap Scavenge youtube.com/playlist?list=PLwq-2MnM58FKbq0b7cnAAn8l__3ctf0HY
QST QMC5883L 3-Axis Digital Compass and Arduino MCU – The Details (5) youtu.be/pfMf-4S9yzk
#tools #usb #usbcable #ethernetcables #bikelight #scrapheapscavenge #robertssmorgasbord
↓↓↓ Complete description and links below ↓↓↓
The videos will keep coming in my absence, though they might be a little shorter than usual. I’ll start catching up with your comments in a month or so.
Channel Announcements: youtube.com/playlist?list=PLwq-2MnM58FKhnNBwzjgW_fQHk1yQzjZY
#absent #absence #away #channel #comments #announcement #announcements #robertssmorgasbord
↓↓↓ Complete description, time index and links below ↓↓↓
In part 4 (link below) we finally managed to nicely calibrate the QMC5883L. We did that by using the matrix method with a bias vector and a scale matrix. But our compass heading was fluctuating quite a bit. It’s time to take care of that noise.
We start by trying to avoid that noise in the first place by checking some causes for noise. Then we’ll come up with an effective noise reduction by filtering our azimuth signal. We’ll end up with a fancy moving median filter / circular median.
00:00 Intro – it’s time to take care of the noise
00:24 Noise – what we’re dealing with
03:00 Noise avoidance – avoid it if possible
03:07 External noise sources – remove them
04:42 Full scale range – use the smallest possible
06:39 Oversampling rate – use the highest possible
07:22 Power supply – more decoupling is better
08:41 Avoidance summary – we did the usual stuff
09:47 Noise reduction – filtering, but what and how?
12:36 Noise levels – raw, calibrated and azimuth data
14:25 Correlated noise – noise that’s not random
18:24 Filter traits – modified mean, mean and median
22:05 Sample number – how many samples we need
25:35 Circular median – no such thing, but we do one
23:12 Filtering algorithm – circular buffer, quick sort
27:31 Eighth version – median filtering the azimuth
33:20 Median azimuth – within 1° to 1.5°, but darn slow
36:58 Wrap-Up – I intended it as light entertainment, bye
Tutorials youtube.com/playlist?list=PLwq-2MnM58FKn3920rc1V0qoTsQDheTIw
QST QMC5883L 3-Axis Digital Compass and Arduino MCU – The Details (1) youtu.be/NTDS2Vmnr-4
QST QMC5883L 3-Axis Digital Compass and Arduino MCU – The Details (2) youtu.be/sFOK9C-F5XE
QST QMC5883L 3-Axis Digital Compass and Arduino MCU – The Details (3) youtu.be/O3ZtVkj6CvU
QST QMC5883L 3-Axis Digital Compass and Arduino MCU – The Details (4) youtu.be/RJovRafwgo8
QST QMC5883L 3-Axis Digital Compass and Arduino MCU – The Basics youtu.be/xh_KCkds038
RS-422 Differential Signaling (Renesas ISL8490, Arduino MCU) – The Basics (1/2) youtu.be/6YWZMRe-7DQ
Arduino, Thermocouples, MAX6675 and SPI – The Fine Points youtu.be/qub3yzqEwek
My code drive.google.com/drive/folders/1y7iLE6iLOgLGdJsME15Qd_4JDpWa1o1Q?usp=sharing
#arduino #compass #magnetometer #i2c #microcontroller #tutorials #tutorial #how-to #robertssmorgasbord
↓↓↓ Complete description, time index and links below ↓↓↓
In part 3 (link below) we calibrated our QMC5883L using the “scaled biases”, or how I like to call it, “min/max” method. We also calculated the azimuth, respectively, compass direction. However, the results of that calibration were underwhelming.
So this time we’ll calibrate using the full blown matrix method. That is instead of just using 3 scales we’ll calculate a 3x3 scale matrix. Spoiler: We’ll get much better results.. And we’ll fix those I2C errors we encountered in part 2 (link below) too.
00:00 Intro – “scaled biases” calibration was not good enough
00:57 Correction matrix revisited – doable methods are available
02:06 Calibration data collected – 360° rotations in 14 orientations
06:15 Biases and scales calculated – with a free windows program
10:17 Seventh version – bias vector plus scale matrix corrections
12:12 Calibrated data – almost perfect, azimuth still a bit off
15:27 I2C errors – don’t take everything in datasheets at face value
20:52 Wrap-up – let’s end on this positive note, next up is noise, bye
Tutorials youtube.com/playlist?list=PLwq-2MnM58FKn3920rc1V0qoTsQDheTIw
QST QMC5883L 3-Axis Digital Compass and Arduino MCU – The Details (1) youtu.be/NTDS2Vmnr-4
QST QMC5883L 3-Axis Digital Compass and Arduino MCU – The Details (2) youtu.be/sFOK9C-F5XE
QST QMC5883L 3-Axis Digital Compass and Arduino MCU – The Details (3) youtu.be/O3ZtVkj6CvU
QST QMC5883L 3-Axis Digital Compass and Arduino MCU – The Details (5) youtu.be/pfMf-4S9yzk
QST QMC5883L 3-Axis Digital Compass and Arduino MCU – The Basics youtu.be/xh_KCkds038
My code drive.google.com/drive/folders/1y7iLE6iLOgLGdJsME15Qd_4JDpWa1o1Q?usp=sharing
Sailboat Instruments: Improved magnetometer calibration (Part 1) http://sailboatinstruments.blogspot.com/2011/08/improved-magnetometer-calibration.html
Sailboat Instruments: Improved magnetometer calibration (Part 2) http://sailboatinstruments.blogspot.com/2011/09/improved-magnetometer-calibration-part.html
Download Magneto v1.2 sites.google.com/view/sailboatinstruments1
NXP/Freescale AN4246 Calibrating an eCompass in the Presence of Hard- and Soft-Iron Interference nxp.com/docs/en/application-note/AN4246.pdf
#arduino #compass #magnetometer #i2c #microcontroller #tutorials #tutorial #how-to #robertssmorgasbord
↓↓↓ Complete description, time index and links below ↓↓↓
In part 2 (link below) we read every bit of raw data, respectively, status information the QMC5883L provides and used its interrupt pin instead of just polling the data in fixed intervals. We’re ready now to do something useful with that data.
As we learned in “The Basics” (link below) you need to calibrate your 3-axis magnetometer. So we start with some calibration theory and implement a simple calibration method. And in the end we calculate a compass direction (azimuth).
00:00 Intro – calibration and azimuth calculation
00:48 Axes revisited – three orthogonal magnetic sensors
03:18 Why calibration – sensor, hard iron and soft iron errors
06:28 Goal of calibration – a certain flux creating a perfect sphere
08:46 Correction matrix – sophisticated calibration, hard to do
11:47 Scaled biases – an easier, good enough way to calibrate
14:00 Fourth version – scaled biases calibration for X, Y and Z values
19:03 Experiments – underwhelming for 3 axes, kinda usable for 1
23:30 Azimuth calculation – two values, trigonometry and arctan2
31:37 Fifth version – compass direction around Z-axis (up and down)
35:00 Wrap-up – we’ll have to revisit the correction matrix, bye
Tutorials youtube.com/playlist?list=PLwq-2MnM58FKn3920rc1V0qoTsQDheTIw
QST QMC5883L 3-Axis Digital Compass and Arduino MCU – The Details (1) youtu.be/NTDS2Vmnr-4
QST QMC5883L 3-Axis Digital Compass and Arduino MCU – The Details (2) youtu.be/sFOK9C-F5XE
QST QMC5883L 3-Axis Digital Compass and Arduino MCU – The Details (4) youtu.be/RJovRafwgo8
QST QMC5883L 3-Axis Digital Compass and Arduino MCU – The Basics youtu.be/xh_KCkds038
My code drive.google.com/drive/folders/1y7iLE6iLOgLGdJsME15Qd_4JDpWa1o1Q?usp=sharing
Advanced hard and soft iron magnetometer calibration for dummies diydrones.com/profiles/blogs/advanced-hard-and-soft-iron-magnetometer-calibration-for-dummies
How to Calibrate a Magnetometer? appelsiini.net/2018/calibrate-magnetometer
Simple and Effective Magnetometer Calibration github.com/kriswiner/MPU6050/wiki/Simple-and-Effective-Magnetometer-Calibration
#arduino #compass #magnetometer #i2c #microcontroller #tutorials #tutorial #how-to #robertssmorgasbord
↓↓↓ Complete description, time index and links below ↓↓↓
In part 1 (link below) we had a look at all the QMC588L’s registers, successfully established I2C communication with it and read/wrote its two control registers. It’s high time we actually read some data and status information from the chip.
And we just do that: Read the X, Y and Z magnetic data, its internal temperature and its status. I’m demonstrating its different status flags while polling data from it. Finally we use its interrupt pin instead of polling the data in fixed intervals.
00:00 Intro – let’s read everything and then use some interrupt
01:12 Second version – reading everything plus some changes
01:28 Header file – new structs, new methods, two changes
04:56 CPP file – implementing the new methods, two more changes
09:47 Sketch – setup simplified, loop reads everything now
11:57 First test – output data rate 10Hz, delay in loop 25ms
16:43 Second test – output data rate 10Hz, delay in loop 200ms
19:40 Third version – using an interrupt instead of a delay
21:20 Fourth test – output data rate 10Hz, loop interrupt controlled
23:43 Sixth test – output data rate 50Hz, loop interrupt controlled
25:00 Wrap-up – next up is calibration, error handling later, bye
Tutorials youtube.com/playlist?list=PLwq-2MnM58FKn3920rc1V0qoTsQDheTIw
QST QMC5883L 3-Axis Digital Compass and Arduino MCU – The Details (1) youtu.be/NTDS2Vmnr-4
QST QMC5883L 3-Axis Digital Compass and Arduino MCU – The Details (3) youtu.be/O3ZtVkj6CvU
QST QMC5883L 3-Axis Digital Compass and Arduino MCU – The Basics youtu.be/xh_KCkds038
#arduino #compass #magnetometer #i2c #microcontroller #tutorials #tutorial #how-to #robertssmorgasbord
↓↓↓ Complete description, time index and links below ↓↓↓
In “The Basics” video (link below) we briefly discussed the QMC5883L’s axes, choose a readily available library for it, did the necessary calibration and got some compass headings from it. We also had a squiz at some alternative libraries.
Now it’s time to go into the details and write our own library for the QMC5883L. We start by having a detailed view at its registers. Then we read, respectively, write its control registers via I2c.
00:00 Intro – we’ve covered the “basics”, now it’s time for a library
01:03 Disclaimer – I’m a dwarf standing on the shoulders of giants
01:28 Datasheet – the QMC5883L’s registers are a good place to start
07:37 Architecture – maintaining a copy of the registers in memory
09:39 First version – just handling the configuration and I2C for now
10:26 Header file – class, types, methods and member variables
14:19 CPP file – initializing static variables and implementation
17:56 I2C read – another look into the datasheet and the code
22:59 I2C write – yet another look into the datasheet and more code
25:56 Sketch – just testing reading and writing the configuration
27:47 Result – configuration written and read back from the chip
28:31 Wrap-up – bit anticlimactic, but heavy lifting is done, bye
Tutorials youtube.com/playlist?list=PLwq-2MnM58FKn3920rc1V0qoTsQDheTIw
QST QMC5883L 3-Axis Digital Compass and Arduino MCU – The Basics youtu.be/xh_KCkds038
Making Sense of NMEA 0183 Sentences – Specs & Arduino/MCU/C++ Code (6) youtu.be/JbEe1z6esjs
My code drive.google.com/drive/folders/12kyof0Hg6CITjcA6A3DgAFln-HouaEX8?usp=sharing
#arduino #compass #magnetometer #i2c #microcontroller #tutorials #tutorial #how-to #robertssmorgasbord
↓↓↓ Complete description, time index and links below ↓↓↓
In the fifth part we implemented a proprietary sentence (U-Blox UBX config message 41) and an Arduino hardware serial talker. Things are getting crowded now in our single sketch file. So it’s time to split the code into several .h and .cpp files.
Splitting the sketch into several files is not that hard. But I want a future NMEA library also to be extensible. The code contains two obstacles to that: enums und unions. I’ll show how I plan to get rid of them using some example code.
►Intro
00:00 Intro – making it a library, extensible and portable
►Renaming classes
01:10 Renamed classes – I tend to rename stuff during development
►Splitting into header and cpp files
04:00 Code v12 – overview, Arduino sketches with multiple files
05:25 nema0183ardunio.h – Arduino specific declarations
07:55 nmea0183arduino.cpp – Arduino specific implementation
08:20 nmea0183core.h – declarations for portable stuff
08:56 nmea0183core.cpp – implementation of portable stuff
09:11 NMEA_0183_v12.ino – not much left here
10:10 Comparison to v11 – no penalties and more manageable
►Extensibility
11:09 Why extensibility – you might want to extend the library
12:14 Hindrances to extensibility – unions and enums have to go
13:24 Extensibility mock-up 1 – looks good, but doesn’t compile
19:35 Extensibility mock-up 2 – using pointers makes it almost work
23:02 Extensibility mock-up 3 – with new and delete it works
24:41 Extensibility mock-up 4 – memory management by the library
37:23 Extensibility mock-up 5 – getting rid of the type variable
►Wrap-up
40:49 Wrap-up – next, proprietary sentences and talkers, bye
Tutorials youtube.com/playlist?list=PLwq-2MnM58FKn3920rc1V0qoTsQDheTIw
Making Sense of NMEA 0183 Sentences – Specs & Arduino/MCU/C++ Code (1) youtu.be/aLeCaa7TUZA
Making Sense of NMEA 0183 Sentences – Specs & Arduino/MCU/C++ Code (2) youtu.be/ylNLhL0YOKw
Making Sense of NMEA 0183 Sentences – Specs & Arduino/MCU/C++ Code (3) youtu.be/gwpso3xlzco
Making Sense of NMEA 0183 Sentences – Specs & Arduino/MCU/C++ Code (4) youtu.be/AZqP-3DS20Q
Making Sense of NMEA 0183 Sentences – Specs & Arduino/MCU/C++ Code (5) youtu.be/o5Y35Bjqx8Y
My code drive.google.com/drive/folders/1fhFwQQyBJROI5B-4tQWU4tkHqIIYA4Sx?usp=sharing
#nmea0183 #iso61162 #arduino #microcontoller #c++ #tutorials #tutorial #how-to #robertssmorgasbord
↓↓↓ Complete description, time index and links below ↓↓↓
A while ago I featured the QST QMC5883L, a license build Honeywell HMC5883L, in a mailbag (link below): We learned that it somewhat differs from the HMC5883L, but got it up and running with a readily available Arduino library anyway – kinda.
Now it’s time to explore the QMC5883L and that Arduino library a bit further. We have a look at its three axes, which are not orthogonal, discover the need to calibrate it for proper usage, and have a squiz at some alternative libraries.
00:00 Intro – what I’ve already shown and what we’ll do
01:29 QMC5883LCompass library – and how to use it
06:32 Axes – X, Y and Z are not what you might think
10:24 Calibration – an absolute necessity
16:08 Alternative libraries – five of them
22:16 Wrap-up – some “The Details” videos coming up, bye
Tutorials youtube.com/playlist?list=PLwq-2MnM58FKn3920rc1V0qoTsQDheTIw
Mailbag: QMC5883L 3-Axis Compass Module (Schematic, Tests, Arduino Library) youtu.be/-fuOCj-e7sM
QST QMC5883L 3-Axis Digital Compass and Arduino MCU – The Details (1) youtu.be/NTDS2Vmnr-4
My code drive.google.com/drive/folders/1y7iLE6iLOgLGdJsME15Qd_4JDpWa1o1Q?usp=sharing
GitHub mprograms/QMC5883LCompass github.com/mprograms/QMC5883LCompass
GitHub keepworking/Mecha_QMC5883L github.com/keepworking/Mecha_QMC5883L
GitHub timpur/QMC5883 github.com/timpur/QMC5883
GitHub dajusc/QMC5883L github.com/dajusc/QMC5883L
GitHub gcmike/QMC5883 github.com/gcmike/QMC5883
GitHub michunie99/QMC5883L_Arduino github.com/michunie99/QMC5883L_Arduino
#arduino #compass #magnetometer #i2c #microcontroller #tutorials #tutorial #how-to #robertssmorgasbord
↓↓↓ Complete description, time index and links below ↓↓↓
In the fourth part we’ve added four more parametric sentences (GGA, GSA, RMC and VTG) and fully objectified our code for decoding parametric sentences (link below). Now it’s time to encode a proprietary sentence and send it using a talker.
We start with a recap of proprietary sentences and have a look at one from U-Blox (UBX, 41 – config). After reviewing the architecture for encoding those, we implement the U-Blox one. Finally we write classes for talkers (base, hardware serial).
►Intro
00:00 Intro – encoding proprietary sentence plus talker
►Proprietary sentences
00:49 Proprietary sentences – a short recap of part 1
02:09 U-Blox (UBX) Config (41) – set protocols and baud rate
06:17 Architecture – classes and encode methods
10:28 Code v10 – encodes a U-Blox (UBX) Config (41) sentence
21:50 U-Blox (UBX) Config (41) encoded – in the end just a string
►Talker classes
23:23 Code v11 – talker base and hardware serial class
27:41 Sentence pushed – through the talker to the U-Blox module
►Wrap-up
28:10 Wrap-up – next, proprietary sentences and talkers, bye
Tutorials youtube.com/playlist?list=PLwq-2MnM58FKn3920rc1V0qoTsQDheTIw
Making Sense of NMEA 0183 Sentences – Specs & Arduino/MCU/C++ Code (1) youtu.be/aLeCaa7TUZA
Making Sense of NMEA 0183 Sentences – Specs & Arduino/MCU/C++ Code (2) youtu.be/ylNLhL0YOKw
Making Sense of NMEA 0183 Sentences – Specs & Arduino/MCU/C++ Code (3) youtu.be/gwpso3xlzco
Making Sense of NMEA 0183 Sentences – Specs & Arduino/MCU/C++ Code (4) youtu.be/AZqP-3DS20Q
Making Sense of NMEA 0183 Sentences – Specs & Arduino/MCU/C++ Code (6) youtu.be/JbEe1z6esjs
My code drive.google.com/drive/folders/1fhFwQQyBJROI5B-4tQWU4tkHqIIYA4Sx?usp=sharing
#nmea0183 #iso61162 #arduino #microcontoller #c++ #tutorials #tutorial #how-to #robertssmorgasbord
↓↓↓ Complete description, time index and links below ↓↓↓
This video is a little bit convoluted, because some honorable Chinese manufacturer has thrown a spanner, that is a fake U-Blox NEO-M8N module, in the works. Anyway, it’s still a good intro to the U-Blox U-Center software.
After installing the U-Blox U-Center we connect the U-Blox NEO-M8N module via a USB to serial adapter. We change the baud rate, decode the boot screen and look at some version information. Then it’s time to update the firmware …
00:00 Preface – there will be a huge disappointment
00:32 Intro – a very long winded one this time
02:36 U-Center installation – nothing to it
03:13 Connecting – port and baud rate
04:08 Changing baud rate – no problem
05:50 Boot screen – some dark foreshadowing
10:01 Version – according to the UBX-MON-VER message
11:14 Firmware update – failed because of unsupported flash
16:49 Wrap-up – it’s a Chinese fake, but is mostly works, bye
Reviews youtube.com/playlist?list=PLwq-2MnM58FIJjuha_h96kWhQR9aSmeAN
Mailbag: GPS Module with U-BLOX NEO-M8N (incl. First Tests with Arduino MCU) youtu.be/jGAcCleu4CU
Making Sense of NMEA 0183 Sentences – Specs & Arduino/MCU/C++ Code (1) youtu.be/aLeCaa7TUZA
FTDI FT232RL USB to Serial Module (AZ-Delivery) Detailed Review youtu.be/27zx9MMKbAE
Faulty Chinese MAX31855K Modules: Fake Chips?!? (Edit: No! See Description!) youtu.be/bHhGXrJNEuw
U-Blox U-Center u-blox.com/sites/default/files/u-centersetup_v21.09.zip
U-Blox 8 / M8 Receiver Description, Protocol Specification u-blox.com/sites/default/files/products/documents/u-blox8-M8_ReceiverDescrProtSpec_UBX-13003221.pdf
#gps #gnss #module #chinese #test #review #robertssmorgasbord
↓↓↓ Complete description, time index and links below ↓↓↓
In the third part we decoded another sentence - GNSS satellites in view (GSV) – with a variable number of fields, partially rewrote our procedural code to be object oriented, and compared the performance of both (link below).
Now we’ll decode the remaining four sentences (GGA, GSA, RMC and VTG) the U-Blox module delivers by default, having beforehand a look at variable length floating point fields. To round things up we’ll make our code fully object oriented.
►Intro
00:00 Intro – four more sentences and further objectification
►Data Fields 3
00:49 Variable length floating point fields
►GGA, GSA, RMC and VTG Sentences
01:33 Global positioning system (GPS) fix data (GGA)
04:55 GNSS DOP and active satellites (GSA)
07:00 Recommended minimum specific GNSS data (RMC)
09:12 Course over ground and ground speed (VTG)
10:27 Code V8 – decodes now GGS, GSA, RMS and VTG too
13:47 GGA, GSA, RMS and VTG decoded – works as expected
►Fully object oriented code
17:35 Status quo analysis – what we have and what’s an object
20:03 Proposed architecture – with a codec class at the top
23:07 Code V9 – fully object oriented
32:45 Comparison – to old, partly procedural code
►Wrap-up
33:47 Wrap-up – next, proprietary sentences and talkers, bye
Tutorials youtube.com/playlist?list=PLwq-2MnM58FKn3920rc1V0qoTsQDheTIw
Making Sense of NMEA 0183 Sentences – Specs & Arduino/MCU/C++ Code (1) youtu.be/aLeCaa7TUZA
Making Sense of NMEA 0183 Sentences – Specs & Arduino/MCU/C++ Code (2) youtu.be/ylNLhL0YOKw
Making Sense of NMEA 0183 Sentences – Specs & Arduino/MCU/C++ Code (3) youtu.be/gwpso3xlzco
Making Sense of NMEA 0183 Sentences – Specs & Arduino/MCU/C++ Code (5) youtu.be/o5Y35Bjqx8Y
My code drive.google.com/drive/folders/1fhFwQQyBJROI5B-4tQWU4tkHqIIYA4Sx?usp=sharing
#nmea0183 #iso61162 #arduino #microcontoller #c++ #tutorials #tutorial #how-to #robertssmorgasbord
↓↓↓ Complete description, time index and links below ↓↓↓
A while ago I featured those AZ-Delivery FT232RL USB to serial converter modules in a mailbag (link below). I was high time to put them through the paces.
The good news: They’re cheap, have a lot of features, and I like their form factor for breadboard use. However, they don’t quite behave like FTDI FT232Rs (EEPROM not writable), and they lack a poly-fuse as well as a recommended ferrite bead.
00:00 Intro – a closer look at that USB to serial module
00:19 Chip – FT232-AZ, an FTDI FT232RL made for AZ-Delivery
00:47 Board – everything there is, and it’s not much
02:45 Pin headers – solder in your own for breadboard usage
03:09 Pinout and specifications – as well as a hint at an EEPROM
07:03 FTDI FT_Prog – can read EEPROM, but cannot write it
10:08 Timing and signal levels – of the USB power management
12:31 USB shield – connected to ground
12:47 Real word test – with an serial U-Blox GPS module
13:40 Summary – the good and the bad
16:24 Wrap-up –nice for breadboard use, bye
Reviews youtube.com/playlist?list=PLwq-2MnM58FIJjuha_h96kWhQR9aSmeAN
Mailbag: Teensy 4.0 600MHz ARM MCU, FT232RL USB to Serial (incl. First Tests) youtu.be/CeJ1m6yjwB4
Mailbag: GPS Module with U-BLOX NEO-M8N (incl. First Tests with Arduino MCU) youtu.be/jGAcCleu4CU
FTDI FT_PROG download ftdichip.com/utilities/#FT_PROG
#usb #serial #converter #arduino #mcu #microcotroller #test #review #robertssmorgasbord
↓↓↓ Complete description, time index and links below ↓↓↓
In the second part we decoded our first two parametric sentences: Text transmissions - TXT and geographic location - GLL (link below). This time we’ll tackle a more complex sentence with a variable number of fields: GNSS satellites in view (GSV).
After that we’ll have a first go at objectifying the code we’ve created so far. By creating a C++ base class with virtual functions and deriving classes from that for each parametric sentence we’ll get rid of all nasty, hard coded case statements.
►Intro
00:00 Intro –a third sentence in details, objectifying, performance
►GNSS satellites in view (GSV)
00:58 GNSS satellites in view (GSV) – variable number of fields
04:41 Code V6 – decodes GNSS satellites in view (GSV)
10:38 GNSS satellites in view decoded – stored in struct with array
►Parametric message fields handler classes
13:26 Code V7 – virtual base class, handler classes and array
23:39 Objectified code – works exactly like procedural code
►Performance – procedural vs object oriented
24:32 Performance measurements – procedural vs object oriented
28:07 Measurement results – object oriented code wins
►Wrap-up
30:06 Wrap-up – next remaining sentences, then we’ll see, bye
Tutorials youtube.com/playlist?list=PLwq-2MnM58FKn3920rc1V0qoTsQDheTIw
Making Sense of NMEA 0183 Sentences – Specs & Arduino/MCU/C++ Code (1) youtu.be/aLeCaa7TUZA
Making Sense of NMEA 0183 Sentences – Specs & Arduino/MCU/C++ Code (2) youtu.be/ylNLhL0YOKw
Making Sense of NMEA 0183 Sentences – Specs & Arduino/MCU/C++ Code (4) youtu.be/AZqP-3DS20Q
My code drive.google.com/drive/folders/1fhFwQQyBJROI5B-4tQWU4tkHqIIYA4Sx?usp=sharing
#nmea0183 #iso61162 #arduino #microcontoller #c++ #tutorials #tutorial #how-to #robertssmorgasbord
↓↓↓ Complete description, time index and links below ↓↓↓
A mailbag with two items this time, and both will go through some initial tests. We have a lighting fast Teensy 4.0 Arduino compatible MCU. It sports a 600 MHz ARM core and a whole lot of interfaces. There is also a FT232RL USB to serial module.
The Teensy is put through its paces by installing the Teensyduino extension for the Arduino IDE and seeing if it shows life signs on the serial monitor. I plug the FT232RL module into a Windows PC and check its output on the oscilloscope.
00:00 Intro – two items this time
00:28 Teensy 4.0 – 600MHZ ARM Cortex-M7 32-bit MCU
02:38 Specifications – and comparison to Arduino Nano Every
05:22 Teensyduino – Teensy within the Arduino IDE
09:09 Hello World – on a Teensy
11:05 FT232RL Module – breadboard friendly USB to Serial
14:32 Driver – no installation needed on Windows 10
15:25 Signal – on the oscilloscope
16:11 Listings – for Teensy 4.0 and FT232RL module
18:28 Wrap-up – just bye
Mailbags youtube.com/playlist?list=PLwq-2MnM58FL0P4F1o3NYB8MnralwhK3F
Reviews youtube.com/playlist?list=PLwq-2MnM58FIJjuha_h96kWhQR9aSmeAN
PJRC (Teensy) pjrc.com
Teensyduino pjrc.com/teensy/teensyduino.html
#arduino #mcu #microcotroller #usb #serial #postbag #firstimpressions #test #review #robertssmorgasbord
↓↓↓ Complete description, time index and links below ↓↓↓
In the first part we identified the different sentence “classes” and decoded their address fields (link below). This time we will actually fully decode two types of parametric sentences: Text Transmissions (TXT) and Geographic Location (GLL).
In between we have a look at several data field types (text, latitude, longitude and time) that are defined by the NMEA 0183, respectively, IEC 61162-1 standard. We also have a squint at null (empty) fields and their recommended usage.
►Intro
00:00 Intro –short recap of sentence classes and address fields
►Parametric sentences
00:59 Parametric sentences – sentences formatter and data fields
►Data Fields 1
01:31 Text fields – variable length text, sometimes including ‘^’
►Text Transmissions (TXT)
02:20 Text transmission (TXT) –text in one or multiple sentences
04:30 Code V4 – decodes text transmissions (TXT)
13:56 Text transmission decoded – all neatly stored in a struct
►Data Fields 2
15:06 Null fields – to be used if value is not available or unreliable
15:51 Latitude and longitude fields – degrees and minutes
16:42 Time fields – hours, minutes and seconds
►Geographic position (GLL)
17:04 Geographic position (GLL): Latitude, longitude and time
19:44 Code V5 – decodes geographic position (GLL)
31:17 Geographic location decoded - all neatly stored in a struct
►Wrap-up
33:25 Wrap-up – next sentences with variable number of fields, bye
Tutorials youtube.com/playlist?list=PLwq-2MnM58FKn3920rc1V0qoTsQDheTIw
Making Sense of NMEA 0183 Sentences – Specs & Arduino/MCU/C++ Code (1) youtu.be/aLeCaa7TUZA
Mailbag: GPS Module with U-BLOX NEO-M8N (incl. First Tests with Arduino MCU) youtu.be/jGAcCleu4CU
NMEA Standards – An Overview (0183, 0183-HS, 2000, OneNet and IEC 61162) youtu.be/SVYkDurlj7w
My code drive.google.com/drive/folders/1fhFwQQyBJROI5B-4tQWU4tkHqIIYA4Sx?usp=sharing
#nmea0183 #iso61162 #arduino #microcontoller #c++ #tutorials #tutorial #how-to #robertssmorgasbord
↓↓↓ Complete description, time index and links below ↓↓↓
There’s a whole lot of information about these standards available on the internet. Unfortunately it’s incomplete and sometimes even outright wrong. Even the Wikipedia got some things not right. Why is that so?
First, these standards are copyrighted, and second, NMEA charges $1000 per copy. Fortunately I do have some (legit) copies of these standards. So I’ll try to set the record straight and will give you an overview about these standards in this video.
00:00 Intro – why this video
01:09 Overview – the standards and their IEC equivalents
01:57 Sources – copies of the standards I have
03:27 NMEA 0183 1.xx – single-ended serial, but not RS-232
07:16 NMEA 0183 2.xx to 4.xx – almost differential, so not RS-422
11:54 NMEA 0183-HS 1.xx – faster, differential, still not RS-422
15:13 NMEA 2000 – even faster, standard CAN bus plus 12V
17:40 NMEA OneNet – the fastest, Ethernet, IPv6
19:00 NMEA 0180, 0182 – honorable mentions, best left in the past
19:26 Standards in use – 0183 still, mostly 2000, OneNet is upcoming
20:32 Wrap-up – that’s it, BTW IEC standards are cheaper, bye
Tutorials youtube.com/playlist?list=PLwq-2MnM58FKn3920rc1V0qoTsQDheTIw
RS-422 Differential Signaling (Renesas ISL8490, Arduino MCU) – The Basics (1/2) youtu.be/6YWZMRe-7DQ
#nmea #nmea0183 #nmea0183hs #nmea2000 #nmeaonenet #tutorials #tutorial #how-to #robertssmorgasbord
↓↓↓ Complete description, time index and links below ↓↓↓
The National Marine Electronics Association standard NMEA 0183, later adopted as ISO 61162-1, describes how electronic marine devices should communicate. This video series covers the software side of things, not the electrical interconnect.
We start with the utilized character set and the basic sentence (message) structure. Then we have a look at the three types of address fields and the four basic sentence “classes”. Of course everything is implemented in C++ on a MCU as we go.
►Intro & Overview
00:00 Intro –my new GPS module talking NMEA 0183 gibberish
01:01 NMEA 0183 & ISO 61162-1 – an brief introduction plus a rant
04:16 Overview – what I want to show you and how I want show it
►Sentence Structure
05:37 Character set – 7-bit ASCII and reserved characters
07:05 Sentence structure – start/end delimiters, 82 characters max
08:05 Approved sentences – address, data fields and checksum
09:04 Code V0 – copies bytes from one serial port to another
10:01 Code V1 – detects start and end of sentences
14:46 Sentences read – each one neatly in a array, some robustness
16:18 Code V2 – encapsulated into an object
►Parametric, Encapsulation, Query and Proprietary Sentences
21:25 Address fields – of the types approved, query and proprietary
27:16 Checksum fields – just a two-digit hexadecimal number
27:38 Parametric sentences – the main body of sentences defined
28:27 Encapsulation sentences – multi-sentence messages
30:54 Query sentences – listener requesting sentence from talker
32:14 Proprietary sentences – not approved, manufacturer specific
32:55 Sentence distinction – not straight forward, but easy enough
33:45 Code V3 – distinguishes sentences, decodes address fields
40:32 Address fields read – all parametric, talkers and formatters
►Wrap-up
42:19 Wrap-up – next time we’ll decode GPS sentences, bye
Tutorials youtube.com/playlist?list=PLwq-2MnM58FKn3920rc1V0qoTsQDheTIw
Mailbag: GPS Module with U-BLOX NEO-M8N (incl. First Tests with Arduino MCU) youtu.be/jGAcCleu4CU
Making Sense of NMEA 0183 Sentences – Specs & Arduino/MCU/C++ Code (2) youtu.be/ylNLhL0YOKw
My code drive.google.com/drive/folders/1fhFwQQyBJROI5B-4tQWU4tkHqIIYA4Sx?usp=sharing
#nmea0183 #iso61162 #arduino #microcontoller #c++ #tutorials #tutorial #how-to #robertssmorgasbord
↓↓↓ Complete description, time index and links below ↓↓↓
In part three (link below) we talked amongst other things about the ground aka signal return line, grounding in general, and the associated problems like potential differences and ground loops.
Isolating your RS-422 transmitters/receivers solves a lot of these problems. So we’ll do just that in this video. We also explore why twisted pair cables are the preferred choice for RS-422. Finally we dive a bit into the shielding of those cables.
00:00 Intro – galvanic isolation, twisted pair and shielding
00:35 Galvanic isolation – no more potential differences or ground loops
03:25 AdUM121N digital isolators – confession: they were always there
04:24 Schematics – for isolated transmitter and receiver
07:48 Isolated measurements – with the oscilloscope
11:00 Cheaping out – and isolating only one side
12:22 Twisted pairs – are not about common mode noise
13:28 Cross talk – is reduced by using twisted pairs
16:10 Shielding – reduces noise even more
17:13 Shield connections – a vast topic
22:58 Shielded cables – several types to choose from
24:36 Wrap up – there’s more, but that’s enough, bye
Tutorials youtube.com/playlist?list=PLwq-2MnM58FKn3920rc1V0qoTsQDheTIw
RS-422 Differential Signaling (Renesas ISL8490, Arduino MCU) – The Basics (1/2) youtu.be/6YWZMRe-7DQ
RS-422 Differential Signaling (Renesas ISL8490, Arduino MCU) – The Basics (2/2) youtu.be/hoZ4D2Tk9Qc
RS-422 Differential Signaling (ISL8490, AdUM121N) – The Details (1/2) youtu.be/__EvQgr3sGA
RS-422 Differential Signaling (ISL8490, AdUM121N) – The Details (2/3) youtu.be/0WHKMjBg1QQ
RS-422 Differential Signaling (ISL8490, AdUM121N) – The Details (3/4) youtu.be/y0wD84uRvbY
Isolated, Unregulated DC-DC Converters – The Pitfalls youtu.be/hVjs5LGEvLY
Small Project: AC Mains Isolation Transformer from Two Broken UPSs (1/2) youtu.be/SlTDqRNryuM
Small Project: AC Mains Isolation Transformer from Two Broken UPSs (2/2) youtu.be/SmCYR4FNrSs
RobustDC Application Note #5, Grounding and RS422/485 (No Free Lunch!) http://robustdc.com/download/index.php?file=AN005.pdf
#rs422 #tutorials #tutorial #how-to #robertssmorgasbord


