To preface: I experimented with RVR a while ago but then got lost with other stuff. I am trying to get back to RVR but when I try to run the sample keyboard control to check if my setup is working I get this error:
serial.serialutil.SerialException: [Errno 13] could not open port /dev/ttyS0: [Errno 13] Permission denied: '/dev/ttyS0'
Any suggestions as to what I can do?
- I tried to change wires but no luck;