AddOhms
Difference between AC and DC Current Explained | AddOhms #5
updated
Patreon: patreon.com/baldengineer
Discord: https://bald.ee/discord
Instagram: instagram.com/baldengineer
X: https://X.com/addohms
Workbench Wednesdays: https://bald.ee/wbw
Video produced by James Lewis (@baldengineer):
baldengineer.com
The device under test (DUT) in this video is the Mega IIe project. It's a fully compatible Apple IIe built around the Mega II chip.
Watch the Mega IIe video here: youtube.com/watch?v=gFCD4s_hsb4
Related Links: addohms.com/measuring-apple-iis-intentional-glitch
#appleii #electronics #oscilloscope
Chapters
00:00 Stretch, Glitch, Jitter
00:28 Apple II Clocks
02:44 Analog Video Signals
04:26 Clock and Video Means Jitter
06:20 kthxbai
Patreon: patreon.com/baldengineer
Discord: https://bald.ee/discord
Instagram: instagram.com/baldengineer
X: https://X.com/addohms
Workbench Wednesdays: https://bald.ee/wbw
Video produced by James Lewis (@baldengineer):
baldengineer.com
#kicad #schematic #pcb
KiCad Links:
KiCad 8 Announcement:
kicad.org/blog/2024/02/Version-8.0.0-Released
Vote for my ERC Warning Feature Request:
gitlab.com/kicad/code/kicad/-/issues/16897
Video Notes: addohms.com/ep32
Chapters
00:00 8 KiCad 8 Features in less than 8 Minutes
00:30 1) Property Manager in Schematic (and et al.)
00:45 2) Grid Overrides
01:42 3) Faster Alternate Pin Assignments
02:28 4) Pin Helpers (Wires and Labels)
03:39 5) Editable Power Symbols
04:15 6) Search and Net Navigator
05:00 7) Improved PCB Shape Tools
05:45 8) Teardrop and Length-Tuning
Patreon: patreon.com/baldengineer
Discord: https://bald.ee/discord
Instagram: instagram.com/baldengineer
X: https://X.com/addohms
Workbench Wednesdays: https://bald.ee/wbw
Video produced by James Lewis (@baldengineer):
baldengineer.com
I noticed this while working on the Apple IIe Schematic during a live stream. Here's a link to that: youtube.com/live/W5LZrmN_rEA
#electronics #kicad #schematics
#marchintosh
github.com/baldengineer/Mega-IIe
Download the design files here: github.com/baldengineer/Banana-to-USB-Adapter
Currently, Bald Engineer is redrawing the Apple IIc's multipage schematic.
R&S gave Bald Engineer an early look at this next-generation oscilloscope. See how it performs and what he thinks of it, and take a look at the chip that powers this amazing scope.
Learn more about the R&S MXO 4: https://bald.ee/mxo4-pg
Patreon: patreon.com/baldengineer
Discord: https://bald.ee/discord
Instagram: instagram.com/baldengineer
Twitter: twitter.com/addohms
Video produced by James Lewis (@baldengineer):
baldengineer.com
Index:
00:00 EEs love Oscilloscopes
00:43 R&S MXO 4 Introduction
02:04 Acquisition Rate
04:34 Vertical Noise (and HD Mode)
07:28 Not your mentor's FFT
08:08 EMI Debug Example
09:25 MXO 4 Teardown
12:48 Things I like
15:42 Things I did NOT like
17:28 Wrap-Up
KiCad 6 has a very cool trick for copying and pasting elements. When you copy *anything* it copies to your OS's clipboard as plain text. So, you can paste it into a text editor, modify it, and then paste it BACK into KiCad! How cool is that? Here is two ways to use the text-based copy/paste in KiCad 6+.
00:34 Copy Between Instances
00:56 Individual to Multi-Sheet
01:18 Text Editor Hack
Download KiCad: kicad.org
Patreon: patreon.com/baldengineer
Discord: https://bald.ee/discord
Instagram: instagram.com/baldengineer
Twitter: twitter.com/addohms
Notes: Get show notes at: addohms.com/ep30
Video produced by James Lewis (@baldengineer):
baldengineer.com
If your labels are number (like 0 to 15) then the INSert key automatically increments for you. Not only that, but it also works for creating WIRES! This one keystroke saves a TON of time when entering schematics in KiCad.
See more from James on Workbench Wednesdays: https://bald.ee/wbw
Download KiCad: kicad.org
Patreon: patreon.com/baldengineer
Discord: https://bald.ee/discord
Instagram: instagram.com/baldengineer
Twitter: twitter.com/addohms
Notes: Get show notes at: addohms.com/ep29
Video produced by James Lewis (@baldengineer):
baldengineer.com
Learn how using the Update PCB from Schematic shortcut can save you time in KiCad. Also, there is another tool that makes editing footprints a breeze.
Patreon: patreon.com/baldengineer
Discord: https://bald.ee/discord
Instagram: instagram.com/baldengineer
Twitter: twitter.com/addohms
Video Notes: addohms.com/ep29
Video produced by James Lewis (@baldengineer):
baldengineer.com
* Join the AddOhms Discord: discord.gg/Wmjgh6R
* AddOhms Patreon: patreon.com/baldengineer
* Support the stream: streamlabs.com/addohms
Multistreaming with restream.io/?ref=vZ3zV
* Join the AddOhms Discord: discord.gg/Wmjgh6R
* AddOhms Patreon: patreon.com/baldengineer
* Support the stream: streamlabs.com/addohms
Multistreaming with restream.io/?ref=vZ3zV
#electronics #opamp #lm358
Join the AddOhms Discord: discord.gg/Wmjgh6R
AddOhms Patreon: patreon.com/baldengineer
Support the stream: streamlabs.com/addohms
Multistreaming with restream.io
Learning to use a new oscilloscope can be daunting. In this video, I show 5 measurements you can make using just an Arduino as your DUT. Learn how to offset voltage, setup measurements, enable infinite persistence, save reference waveforms, AND trigger (and decode) serial signals. For this video, Rohde & Schwarz was kind enough to send me an RTM3004. Check out the links below for more.
#oscilloscope #measurement #electronics
Get show notes at: http://addohms.com/ep28
Video produced by James Lewis (@baldengineer):
baldengineer.com
Ask questions directly on the forum:
discuss.addohms.com
Subscribe to learn electronics with free tutorials:
goo.gl/H9r1RN
Get show notes at element14:
http://www.addohms.com/ep26
Video produced by James Lewis (@baldengineer):
baldengineer.com
Thank you to Texas Instruments and element14 for providing the hardware:
http://element14.com
http://ti.com
#capacitive #touch #msp430
Join the AddOhms Discord: discord.gg/Wmjgh6R
AddOhm Patreon: patreon.com/baldengineer
Switching Power Supply Tutorial:
youtube.com/watch?v=CPvA-uS0dNY
Raspberry Pi Soft Power Controller:
hackster.io/baldengineer/raspberry-pi-soft-power-controller-10bf8e
Support the stream: streamlabs.com/addohms
Multistreaming with restream.io
Support James on Patreon:
http://patreon.com/baldengineer
Get show notes at:
http://addohms.com/diy-arduino-turn-on
Join the AddOhms Discord:
http://addohms.com/discord
Marvel Studios Logo Template Created by lonearcherfilms/Film Learnin - Check out the channel here: youtube.com/channel/UChrEm1ir4-uBlucI445YYnQ
Video produced by James Lewis (@baldengineer):
baldengineer.com
Ask questions directly on the forum:
discuss.addohms.com
Subscribe to learn electronics with free tutorials:
goo.gl/H9r1RN
#arduino, #electronics, #reflow
12:11 - Coin Acceptor Programming
18:00 - Pulses on the R&S RTM3004 Oscilloscope
42:05 - Code working as intended!
This week the bald engineer unboxes swag from electromaker.io, programs the Adafruit Coin Accepter, with a Pyramiduino, and answers questions along the way.
Want to keep the conversation going? Join the AddOhms Discord: discord.gg/Wmjgh6R
Marvel Studios Logo Template Created by lonearcherfilms/Film Learnin - Check out the channel here: youtube.com/channel/UChrEm1ir4-uBlucI445YYnQ
DIY Arduino Schematic: youtube.com/watch?v=5fvdxd0QhTw
Adafruit Coin Accepter: adafruit.com/product/787
Electromaker.io: electromaker.io
Support the stream: streamlabs.com/addohms
Join the AddOhms Discord:
discord.gg/Wmjgh6R
Original description:
Watch as the bald engineer creates an AddOhms Episode, right before your eyes! I'm generating an animation on how Arduino's Auto-Reset Works.
Get show notes at: http://addohms.com/picking-pullup-resistor-values
Video produced by James Lewis (@baldengineer):
baldengineer.com
AddOhms Discord:
discord.gg/bS9H86x
Subscribe to learn electronics with free tutorials:
goo.gl/H9r1RN
#resistors #pull-up #electronics
T-Shirt: contextualelectronics.com/product/never-trust-the-autorouter-t-shirt
Support the stream: streamlabs.com/addohms
Learn more about EAGLE 9: autodesk.com/products/eagle/overview
Join the AddOhms Discord: discord.gg/Wmjgh6R
Check the previous part on the schematic and subscribe to see the next part, when we populate and turn on the board for the first time.
Subscribe to learn electronics with free tutorials:
goo.gl/H9r1RN
Previous Episode:
youtube.com/watch?v=5fvdxd0QhTw
Show Notes:
http://addohms.com/diy-arduino-pcb-pyramiduino
http://addohms.com/ep24
Need PCBs? I recommend OSHPark:
oshpark.com
Video produced by James Lewis (@baldengineer):
baldengineer.com
Ask questions directly on the forum:
discuss.addohms.com
It's time to take your Arduino code to the next step. It's time to learn how to ditch delay() and use millis() instead. You don't need to reset millis(), instead, learn how to use a single line of code.
Streamed on Sunday, January 28.
If you want to submit code for questions, please paste it here: gist.github.com/. Submit a link to the gist, along with your specific question. The message may not appear immediately in the chat, don't worry. Only submit once.
For a primer, check out these Bald Engineer tutorials on Arduino millis():
How to Fake Multitasking:
baldengineer.com/millis-tutorial.html
The proper way reset millis, aka don't!:
baldengineer.com/arduino-how-do-you-reset-millis.html
A bunch of millis examples:
baldengineer.com/arduino-millis-examples.html
For more details, data sheets, and downloads visit:
http://www.addohms.com/diy-arduino-schematic
Download the schematic:
github.com/baldengineer/addohms/tree/master/DIY%20Arduino
Want to ask questions directly? I have a forum:
discuss.addohms.com
These videos are produced by James Lewis:
baldengineer.com
#arduino #schematic #kicad
The Bald Engineer is back for another session of answering electronics questions. As 2017 closes, I found myself surrounded by unopened boxes. These are not the typical holiday boxes. Instead, they are the kit service called "Hackerboxes."
For the past year, I've been receiving the boxes. BUT I was so busy, I didn't open most of them. So let's check them out together.
About Hackerboxes: hackerboxes.com
Hackerboxes YouTube Channel: youtube.com/channel/UC8jX9crRtFVWU5M99c55PmA
AddOhms: http://www.addohms.com
James: baldengineer.com
Send questions to email, twitter, or Discord.
About Crazy Circuits: browndoggadgets.com/collections/crazy-circuits-kits
To Submit Questions, tag them on Twitter with #AskAddOhms. (You can try sending to the chat, but I'm not sure how well that will work.)
Notes and discussion: http://addohms.com/voltage-divider-regulator
#voltage #resistors #zener
If you're interested in the PicoScope, check it out at:
HomePage: www.picoscope.com
Amazon Affiliate: http://amzn.to/2xoQPSj
Partial Review: baldengineer.com/picoscope-2204-review.html
Support on Patreon: http://patreon.com/baldengineer
Show Notes: addohms.com/brushless-dc-motors
Follow AddOhms On
Twitter: twitter.com/addohms
Facebook: facebook.com/addohms
Reddit: reddit.com/r/addohms
#motors #brushless #electronics
I'll get back to making tutorials soon.
There's two channels I watch which helped me understand much of the editing and special effects. They are,
Surfaced Studios: youtube.com/user/SurfacedStudio
and
Lone Archer Films: youtube.com/user/lonearcherfilms
In addition to their great film making tutorials, I learn much from how they construct their tutorials.
T-Shirt is "No Flux Given" by Engineering Outfitters: engineeringoutfitters.com/products/no-flux-given
Questions answered in this video:
00:39 Why does AC change direction?
03:17 What do home appliances run on?
06:44 Is Analog or Digital More Accurate?
08:36 When do you use Pull-down resistors?
11:16 Difference between LM7805 and LM7812?
13:24 What diode to pick for a motor's flyback diode?
16:25 Does James draw his own Animations?
18:51 What does "AddOhms" mean?
Visit www.addohms.com to learn more about the videos.
If you'd like to contribute, become a Patron at http://www.patreon.com/addohms.
Support on Patreon: http://patreon.com/baldengineer
You will also learn how to control them with an Arduino, 2n3904, and an h bridge. Understand how an H Bridge lets a brushed DC motor spin in two directions, without a negative voltage.
Show Notes: http://addohms.com/ep20
Patreon: http://patreon.com/addohms
AddOhms Forum: discuss.addohms.com
#brushed #motor #electroics
James also addresses whether or not his drawings are incorrect.
Question: discuss.addohms.com
Show Notes: http://www.addohms.com/ep19
Support AddOhms
Patreon: http://www.patreon.com/addohms
Buy a DVD: tindie.com/products/baldengineer/addohms-dvd-vol1
#electron #current #flow
Support on Patreon: http://patreon.com/baldengineer
A transistor, or switch, controls the charging and discharging. This method makes for an efficient regulator, but can be difficult to design.
This is part 2 on Voltage Regulators. Part 1 (AddOhms #17) covered Linear Voltage Regulators. That video can be found here: youtube.com/watch?v=OAoEWaGtQjs
Show Notes: addohms.com/ep18
Patreon: patreon.com/addohms
#voltage #regulator #smps
Support on Patreon: http://patreon.com/baldengineer
Curious about how it works? In this AddOhms Tutorial we look at what a Linear Voltage Regulators is and how to use them in your circuits.
Discuss on AddOhms Forums:
forum.addohms.com/t/show-notes-17-linear-regulators/48
More information:
www.addohms.com/ep17
Support AddOhms on Patreon:
http://patreon.com/addohms
#linear #regulator #lm7805
Originally I shot this video on Periscope, which is the right view. The left view is my over-head camera rig, which I use for other AddOhms Tutorials.
More information about the build, the op-amps, and my full review are at: http://www.addohms.com/build02
Support on Patreon: http://patreon.com/baldengineer
This AddOhms tutorial shows how to use a pull-up resistor to make buttons work! Whether it is a big switch or a tiny push button, one single resistor can fix your problem.
Learn how to enable the Arduino pull-up resistor in this tutorial.
#pullup #resistor #arduino
If you want add to this Open Letter, please use the hashtag "#OneArduino".
Find more about the video at: http://www.baldengineer.com/videos/open-letter-to-arduino-llc-and-arduino-srl
You can find James on twitter as @baldengineer.
For more information and thoughts on the VirtualBench go to http://www.baldengineer.com/virtualbench for my full review.
You can find show notes for this video at http://www.addohms.com/ep14
#oscilloscope #dmm #virtualbench
Here's a quick Thank You along with 2 exciting announcements!
1. AddOhms is going Mobile. Visit http://www.addohms.com/mobile for information on our up-coming HTML5, iOS, and Android apps. For now, there's a mailing list for more info and/or beta testing.
2. Volume 1 of an AddOhms DVD is coming. The initial run will be available soon. See http://www.addohms.com/dvd for more information on (pre-)ordering.
Again, I am really honored so many of you like the videos. More are coming...
Support on Patreon: http://patreon.com/baldengineer
A good option is a voltage divider. This is two resistors in series, with a point in the middle. This AddOhms Video explains how to calculate the resistors needed for a specific voltage.
Note: There is a mistake around 3:00. I say "91 millivolts" and I should have said "910 millivolts!"
Visit: www.addohms.com
Follow Us on Twitter: http://www.twitter.com/addohms
Like Us On Facebook: http://fb.com/addohms
Circle Us on Google+: plus.google.com/+AddOhms
Leave comments, ask questions, and suggest topics to cover next.
#resistors #ohmslaw #electronics
#raspberrypi #element14 #electronics
Support on Patreon: patreon.com/baldengineer
They are switches that can be used an Arduino, BeagleBone, or Raspberry Pi. This is part 2 of a 2 part series, which covers MOSFETs. (Part 1 Covered BJTs).
When it comes down to it, MOSFETs are pretty complicated devices. This video will cover the basics of what you need to use them in your circuit, including calculating if you need a heat sink or not.
Learn what they are and how to use them.
Part 1 (BJTs):
youtube.com/watch?v=sRVvUkK0U80
Show Notes:
http://www.addohms.com/ep11
Follow us on twitter: @addohms
#mosfet #transistor #
This was a team effort from a the members of the Arduino forum. First all of the people how help answers questions, of which, there are too many to list.
The real credit goes to wildbill and Grumpy_Mike.
wildbill wrote the original lyrics and Grumpy_Mike put them to music, lending his voice.
I (JamesC4S) just did the video animation.
Visit us at http://forum.arduino.cc
The original thread is here:
http://forum.arduino.cc/index.php?topic=99388.0
#programming #arduino #electronics
Support on Patreon: http://patreon.com/baldengineer
There are two major types known as a BJT and MOSFET. This is part 1 of a two part series, which looks at BJTs first.
Learn what they are and how to use them.
Show Notes:
http://www.addohms.com/ep10
Follow on Twitter:
#transistor #bjt #electronics


