harryberlin

Note: Nano Every is not the same like usual Nano. Open your own issue. In my case, usual nano is working.

i mean avrdude should do this already. check the args for avrdude.

Den Bootloader kannst nur mit nen Programmer (z.B. USBASP) über 6pin ISP-Port brennen. Und auch nur mit dem Button "Bootloader brennen". Mit Sketch Upload per UART geht es nicht.

i think it's not a pyserial issue. you should convert the hexstring to bytes. one byte has only a size of 0xFF

i'm using (python 2.7) ``` from serial.tools import list_ports ports = list(list_ports.comports()) ```

i mean, sending files has nothing to do with pyserial. check this: https://superuser.com/questions/278483/file-transfer-over-a-serial-line

please try to solve your issue and share the result.

you should ask in forums for help. your code is bad. i tried this:  get this error. ` port.write(trigger)` `NameError: name 'trigger' is not defined`

don't have a biosemi trigger cable. what's that? i think it's not a pyserial issue.

trigger is not defined! the code will not run. otherwise it's not your real code.