DIYBMS v4

got my esp32 devkitc from china
it seems i am very unlucky this one does not work too
no modules found no testcode work
have tryed new firmware(25) and from other computer

i made a putty screenshot on testcode
test2

atanisoft · 2021-03-25T18:01:54.735Z

That output looks like it is reporting an invalid application image. Perhaps try and erase the flash and try again?

voltmeter · 2021-03-25T18:10:30.831Z

disconnected again from pcb and flashed test code
same putty output - invalid header

i dont know what else to do
this is crazy

have ordered 2 new esp from other seller, this is insane.

flash735×791 34.8 KB

stuart · 2021-03-25T21:34:25.275Z

Just to be safe, try flashing one of the older releases, just in case a problem has crept into the new build process on GitHub.

voltmeter · 2021-03-25T21:54:14.772Z

where can i get the oldest controller test file for flashing with node mcu flasher?

stuart · 2021-03-25T22:10:28.742Z

They are all on GitHub, in the release section

voltmeter · 2021-03-25T22:14:50.479Z

the controller test file is only available since 3-17 release

GitHub

Releases · stuartpittaway/diyBMSv4ESP32

diyBMS v4 code for the ESP32 and new controller hardware - stuartpittaway/diyBMSv4ESP32

Fred7421 · 2021-03-25T23:15:48.318Z

Hey Stuart, there are lcd touch panel displays available with an sd card slot on them, will that work if I just remove the card slot on the board?

stuart · 2021-03-25T23:25:53.986Z

No need to remove the card slot on the board, just don’t use both at the same time

stuart · 2021-03-25T23:26:56.889Z

Sorry didn’t realize you were using the test file.

That file cannot be programmed using nodemcu flash tool, the file is not the correct format.

Can you use the real controller code without problem?

voltmeter · 2021-03-26T00:25:48.239Z

Stuart
2 of my 4 test v4.21 modules are not working,
i tried this with the new arived v4.4 modules and they worked on first try with old and new firmwares

have soldered the attinys exactly the same on 4.4 and 4.21 modules
maybe some bad solder on attiny il check this