From the past seven days, I am facing this issue. I am using Raspberry pi4 with Sphero rvr
Problem statement -
Control sphero via ssh.
Sphero is perfectly run with raspbian buster over ssh.
I changed OS because raspbian buster has issues with ROS.
I Installed the ubuntu 20 server and convert it into the desktop. Sphero firmware faced issues while running python scripts.
serial.serialutil.SerialException: [Errno 13] could not open port /dev/ttyS0: [Errno 13] Permission denied: ‘/dev/ttyS0’
I performed almost every solution which is available on the internet related with this issue. but this issue is still there.
I changed OS form ubuntu server to ubuntu mate but this issue is still there.
All the experts who developed Sphero firmware please reply.