Python serial readline code#

I could do with a way of splitting the data that will seperate the 2 streams but still allow me to pick out the individual characters from the string I can't do it by the length of the packet either as there could be different packet types which will be different lengths. The devices communicate with 1 coordinator (COM6) so I can't read them over seperate serial lines either. Is there an alternative way of doing the split?

Python serial readline code#

That is working fine for now but when I introduce 2 devices the split isn't working as expected and the data arrives over serial as follows:ħe001090007d33a200408b2e0c2db70100160057637e001090007d33a2004089e04a569d01001600Īs you can see there are 2 packets in there which as stated above is seprated by the 7e in the middle there. Below is the python code I have written : import serial,time initialization and open the port ser serial.Serial() ser.port '/dev/ttyUSB0' ser.baudrate 1152000 ser.bytesize serial. I have the following up to now: import serial The important character is the 7e at the beginning which is the start delimiter for the packets - device information and sensor data follows that. I have 2 devices reading temperatures and other environmental data over an Xbee which then writes the data over serial. Calls to close() will close the serial port but it is also possible to just stop() this thread and continue to use the serial port instance otherwise. I am coding some python to work with some wireless serial devices. Implement a serial port read loop and dispatch to a Protocol instance (like the asyncio.Protocol) but do it with threads.