openinverter forum

IT WORKED!!!!
I guess either I only programmed the bootloader before or the charger file but regardless I was finally able to configure the charger.

Thank you all for your help!!

But now, I connect everything up and my EVSE shows it's connected and "charging", but the charger modules are not turning on (no red lights). The spot value for "state" shows "WaitStart".

I don't have external CAN enabled, but I read something in the troubleshooting I need to confirm the CAN bus is properly terminated via closing the solder jumper next to R1 under the WIFI module for V5aB2. I looked under my Wifi module and see R1, but not necessarily any jumper. Am I missing this? Also where would I measure on the board between CAN H and L to confirm 120 Ohms or does this even apply?

If your using can then yes, but but charger just operating stand alone, that won’t apply.

How and what do you have wired? what plug are you using, what resistance is the pilot pin?

Here's my setup:
Tesla EVSE with adapter to J1772 plug.
Plug is wired to SimpCharge and then to VeroBMS (similar to Simp BMS) for CP and PP.
I have the 12V charge enable signal from the BMS/SimpCharge wired to the 2 Tesla Charger 12V in connections (A3, B1)
Power wires from plug go to charger via fuses
For testing, I've also spliced the PP and CP to go from the plug directly to the Tesla Charger connections (B5, B11) and given the Charger 12V directly (not from BMS). So I can see the wifi go on, but nothing else happens.

Currently, when the plug is connected and the EVSE thinks it's on, the PP to ground measures 0 resistance.

spiff wrote: ↑Wed Jul 09, 2025 1:23 am I've also spliced the PP and CP to go from the plug directly to the Tesla Charger connections (B5, B11)

Not possible, you cannot splice charge point signals.

Please provide the parameters of your charger settings.
Please provide pictures of your setup.