For the wifi, I used the pre-compiled firmware (I didn’t change the main firmware version).
Managed to get the car up to 100% at 12A overnight so not able to test the command properly yet, but it is returning ‘$OK 32^01’ when I try it. Will try it later when the SOC has reduced.
I’ll check that when the car is back later today, but I can confirm the car did charge successfully last night at 32A having run the $SC 32 command. So at this point it seems to be an interface issue.
Quick update: I couldn’t connect to the EVSE web interface so I gave it a reboot. When it came back up the interface had returned to normal and the full range of currents is now selectable.
Unfortunately the upgrade has not gone well. Although the display showed ‘upgrade done’ or something similar afterwards, I can now not connect it to the home Wifi and the interface is showing an error:
It looks like the update has taken place successfully, however I think you may have used the incorrect update file. I can see from one of your previous posts that you have a Huzzah32 WiFi module hardware:
There is a difference in serial ports between the two hardware versions, so currently the Wifi module is not able to communicate with the OpenEVSE controller, hence the lack of data and LCD updates.
Thanks John, but the problem is all I see is what is in the screen grabs that I posted above. All the normal functionality (including Wifi upgrade) is not there.
I was hoping there might be an ethernet port I could plug into but there is not…
only suggestion I can make at the moment is to connect to the EVSE hotspot using your laptop.
then as per your screenshot above click the “standalone” button. Then you should be able to get up the normal interface that you would normally see on the network, at this point do the WiFi upgrade to the correct firmware. Then do a power reset and I hope you can connect to the hotspot and connect to your network
Thanks both. I will try and reprogramme tomorrow - I guess I will need to botch something to get the programmer attached, unless the pins on the molex type connector are the same pitch?
Yes, you will need some flying wires or a smaller pitch connector to connect the programmer. If you’re ordering a programmer from us we can include an adaptor.
I’ve tried uploading the firmware without success. I only have gnd, tx and rx connected as they’re the only pins labelled on the OpenEVSE Wifi. Do I need other pins connected to the programmer?
Also, can you advise where to download bootloader and partition files (if I am treating this as a new unit) as mentioned in the guide?