Hello,
This thread is basically to confirm that I have parsed all the information I have found over the internet
I have a OpenEVSE which is currently running
Firmware | Version |
---|---|
Controller Firmware: | 7.0.2.T2 |
WiFi Firmware: | 3.3.1 |
with an ethernet ESP32 board in.
I want to update the ESP firmware, but I believe from the release page for that firmware I need to update the controller firmware?
Which I get redirected to this repo GitHub - OpenEVSE/open_evse: Firmware for Open EVSE to find the firmware. I assume I need openevse_eu.hex
.
I assume from this thread and linked article that I need to extract the controller board from the charger, get a AVR programmer (like this one) and then flash the firmware image?
I am a little worried about taking this apart and breaking it, it’s a rather critical bit of tech for me!
So some questions:
- Do I need to disassemble the whole thing or is isolating it from the mains sufficient?
- I’ve used an ardunio as an AVR programmer before, can I do this here?
- Is there a race condition between upgrading the controller and ESP32 firmwares? Do they need to be upgraded in sync or which one first?
Thanks a lot!