MicroPython Forum (Archive)

For character to byte I use ord() when reading serial port:

Rxdata = bytearray(256) #receive buffer, 0..255
...
rxc = U0.read(1) #return None if timeout
Rxdata[rxcount] = ord(rxc)
rxcount += 1
...

I am reasonably familiar with microcontrollers having worked since the 8051 came out in the 80's. However python is a new acquaintance, as is the RPi Pico. My little home automation project came to a halt when the timer isr (callback) stopped for some reason. a) when running the code and not enablin...