That's really helpful. I didn't see the manual in this thread but I'll look elsewhere. I have the following models and will try to get both working. Nissan numbers are:
- 3NG0A: 4-wire (UART?) from 2014
- 5SA7B: 3-wire (LIN) from 2023

That's really helpful! I haven't hooked anything up, but it sounds like I'll need a LIN transceiver instead of straight to the compressor. That makes much more sense and I saw a couple models earlier in the chat

@maiks, I'm not sure about any of the compressors. I imagine the code supports both. If ...

Thanks! I just setup github account at https://github.com/RERides-EV. I've made some mods to your code. Goal is to create modules based on controller/device. I can then #include modules for each component I add to a build. For this build, in addition to the Leaf AC compressor, I plan to add temp ...

I'm trying to digest this all and learn Arduino programming at the same time. a couple decades ago, I new C so the C++ structure is familiar. I'm using an Arduino Uno and compressor from 2014 Leaf. The code is using the UART capabilities of Arduino to mimic the compressors LIN communication.

To ...

The inverter firmware doesn't have OBD support in its current version

Thanks! I also have Thunderstruck's CAN-OBD2 translator, so I'll see if I can figure out how to program it with OpenInverter CAN messages... Unless someone has that mapped already. I plan to use OBD PIDs from the stm32 code ...

I never closed this out, over a year ago... And I'm almost done! I was pulling voltage from the wrong spot, all better! Everything is solid, waiting for the last bits to pull together (like a charger that works!)

This OBD-II data from the OpenInverter board is just what I was looking for. I'm using Torque for a digital dash, would like to pull PIDs from Thunderstruck MCU and OpenInverter. I'd really like the "DIR" info, but there is lots of good things I could add. I see the request, and it looks like it was ...

ok, now I've lost the WiFi link... and 5V out the plug is only 2.3V... might have a 5V issues, probably due to my poor soldering skills. I've been practicing, have some better tools, think I'll open things up and take some readings from the actual board.

oh man, I hate to revive this thread but... UDC is not picking up voltage anymore. I had this working, but had moved on to other things waiting for some parts to arrive. Five months later, I'm not sure what happened. The nice UDC plot showing the capacitors discharging is gone; UDC now looks like a ...

Went and double checked my very amateur soldering, and looks like I missed a short on on the UDC feed. UDC is measuring 297, feel like I'm back on track, just embarrased.... more to follow as I continue my wiring and calibrations

... hence "udcofs"...

Unfortunately I have nothing to add to the linked thread. Nissans voltage PWM is either not working or lost somewhere on the way. If you have a scope try finding the signal right on Nissans gate drive board and then follow it towards the main board.

Thanks Johu. I don't have a scope, but I'll ...

Hi Friends, I'm "working" on swapping Leaf Gen2 (2013) motor/inverter into an NB Miata (1999). I gave myself a year, and am about 4 months in. I bought the Leaf Gen2 Community Edition , think I have it assembled and installed properly, but am having UDC issues similar to @E46driver here . Here's ...