Reading serial data in realtime in Python

Question

I am using a script in Python to collect data from a PIC microcontroller via serial port at 2Mbps.

The PIC works with perfect timing at 2Mbps, also the FTDI usb-seri

Answer 1

You need to set the timeout to "None" when you open the serial port:

ser = serial.Serial(**bco_port**, timeout=None, baudrate=115000, xonxoff=False, rtscts=False, dsrdtr=False) 

This is a blocking command, so you are waiting until you receive data that has newline (\n or \r\n) at the end: line = ser.readline()

Once you have the data, it will return ASAP.