I am working on connecting Raspberry 4 with the Tic motor controller following the instruction Pololu - 12.8. Example I²C code for Linux in C (section 12.8). However, after adding
dtoverlay=i2c-gpio into the
/boot/config.txt file as described in the instruction and after rebooting I do not see the
/dev/i2c-3 has been created. I am not sure what causing this issue. Any help in resolving this probelm will be appreciated.