Uploaded July 2023 | Updated September 2026, 3 weeks ago
In this episode, the quarter-berth goes back together, and the AC side of the boat's trip-home electric work gets finished up!
patreon.com/TheDigitalMermaid
Channels that have Helped Me;
*@ProjectBrupeg
*@BillCarlson
*@OffGridGarageAustralia
*@LadyKSailing
*@AcornToArabella
0:00 - A Generous Offer of Test Equipment
1:36 - Today's Planned Work
2:37 - Starting an Experiment
3:35 - Wiring in the quarter-berth
6:12 - Engine Bay Battery Stand
8:42 - Wiring in the Engine Bay
15:21 - Reassembling the Quarter-berth
20:54 - Mystery Pink Growth
21:50 - Review of After-Hours Wiring
23:38 - Battery Drain Experiment Update
24:21 - GoPro Failure / Lost Footage
25:01 - Finished Up the AC Side!!
Old Patreon "live update" video:
- youtube.com/watch?v=mf05-orMi1g
In this episode, the quarter-berth goes back together, and the AC side of the boat's trip-home electric work gets finished up!
patreon.com/TheDigitalMermaid
Channels that have Helped Me;
*@ProjectBrupeg
*@BillCarlson
*@OffGridGarageAustralia
*@LadyKSailing
*@AcornToArabella
0:00 - A Generous Offer of Test Equipment
1:36 - Today's Planned Work
2:37 - Starting an Experiment
3:35 - Wiring in the quarter-berth
6:12 - Engine Bay Battery Stand
8:42 - Wiring in the Engine Bay
15:21 - Reassembling the Quarter-berth
20:54 - Mystery Pink Growth
21:50 - Review of After-Hours Wiring
23:38 - Battery Drain Experiment Update
24:21 - GoPro Failure / Lost Footage
25:01 - Finished Up the AC Side!!
Old Patreon "live update" video:
- youtube.com/watch?v=mf05-orMi1g
![Ep. 103 - Replacing a Quattro With a Multiplus-II
NOTE: I say in this video Charge miles per hour. I meant to say that for each hour of charging, I want to charge at greater than 1 hour of travel. The miles per hour is times 4, assuming 4 knots travel speed.
Were back to angry pixies! In this video, I replace the old Victron Quattro 48/5000/70 for a new Multiplus-II 48/5000/70. I talk about why I switched, and what the differences are between the two models. Then we get it setup and charging the batteries again.
] Patreon:
- https://www.patreon.com/TheDigitalMermaid
] Channels that have Helped Me;
* @ProjectBrupeg
* @OffGridGarageAustralia
* @AcornToArabella
* @BillCarlson
] References;
- Multiplus-II 48|5000|48-120v Specs;
- https://www.victronenergy.com/upload/documents/Datasheet-MultiPlus-II-120V-EN.pdf
- Quattro 48|5000|48-120v Specs;
- https://www.victronenergy.com/upload/documents/Datasheet-Quattro-3-10kVA-120V-EN.pdf
- Victron Overload Source;
- https://communityarchive.victronenergy.com/questions/4454/peak-power-of-victron-inverters.html
- Victron Config Guide with Power Modes
- https://www.victronenergy.com/media/pg/MultiPlus_2kVA_120V/en/configuration.html
- Song Chuan 511HP1-1AH-F-C E01 Relay
- Note: Spec sheet reports 400v, I read 830v
- https://www.mouser.com/datasheet/2/378/2016111178754208-1862130.pdf
] Chapters
0:00 - I got a new toy!
0:51 - Why I originally got the Quattro
2:31 - Unboxing the Multiplus-II 48/5000/70
3:53 - A discussion on miles per hour recharge rate
7:39 - Weight differences
8:24 - Comparing the Quattro to the Multiplus-II
13:37 - Opening the lower panel of the Multiplus-II
14:22 - A problem with Canon passthrough power
14:47 - Taking a look inside the Multiplus-II
19:29 - Concerning marks
19:57 - Hats off to professional videographers
20:06 - Closing up the Multiplus-II
21:17 - When will the MP2 fit on the boat?
23:23 - Making space for the MP2 with Mae
26:30 - Mounting the MP2
27:37 - Missing Handles!
28:19 - Pinning the MP2 to the wall, not the cable
29:13 - Cutting grommets
30:48 - Pro diesel comments, still!
31:39 - Wiring up the Multiplus-II
33:08 - Converting the AC in line to ferrules
34:24 - Two AC outs, load shedding!
34:51 - A kitty interlude
35:55 - Back to wiring the AC side
37:49 - On to wiring the DC side
40:17 - An unexpected distraction
42:08 - Double-checking everything
44:57 - Firing up the Multiplus-II!
46:19 - Charge voltage and absorption comments
48:08 - Bringing all batteries online
49:30 - First charge!
50:19 - Cerbo touch display failure Ep. 103 - Replacing a Quattro With a Multiplus-II](https://i.ytimg.com/vi/uAeh74TjtR8/mqdefault.jpg)









![Ep. 95 - 2 Throttles, 2 Motors, 1 Brain - DIY Helm Controls
Ive been deep into learning STM32 embedded development, and Im finally starting to come up from under the rock Ive been hiding under.
This vide is pretty technical, and probably not the most interesting. However, I wanted to make it anyway because projects are not all sparks and excitement. Working through long, slow spans of learning to do something is a real part of taking on big projects.
] STM32 Helm v01 - As of May 12, 2024
* https://github.com/digimer/Mermaids-Rest/tree/78fa891de9739584ab1d5a6e4e652a4f4edd9295
] Helm Controls Planning Doc
* https://docs.google.com/document/d/1GbOjI1D3vNJ4GQJFe-qQDrf0KEiA9gw_H1Upa65IYns/edit?usp=sharing
] Channels that have Helped Me;
* @ProjectBrupeg
* @OffGridGarageAustralia
* @AcornToArabella
* @BillCarlson
] Chapters
0:00 - Intro / Its Spring
0:42 - Helm Control Progress So Far
2:11 - Why Am I Doing This?
3:20 - Four Devices with on Two Addresses
4:25 - Two Motors, Two Throttles
6:56 - The Genius and Limitations of Arduino
9:05 - Using Pins on STM32 vs Arduino
12:30 - DMA on STM32 and Other Efficiencies
16:30 - Displaying Data; Serial, LCD, Screen and Dashboard
21:51 - DAC Testing, Calibration, and Durability
24:58 - Prototype board, PCB Plans, and Cables
27:09 - Debug The DACs With Me!
37:11 - Bad Wiring! The Benefits of Planning Docs
41:31 - Kelly Controller Minimums and Maximums
43:47 - This Is What Learning Is Like
44:27 - Calibrating My Specific DACs
53:37 - Whats Coming?
54:32 - New Parts; A HUGE Thanks to my Patrons! Ep. 95 - 2 Throttles, 2 Motors, 1 Brain - DIY Helm Controls](https://i.ytimg.com/vi/xbwvNXn1K7U/mqdefault.jpg)