I got my Arduino Romeo + Grove Base Shield and Python PyFirmata working properly. Just that i need more PWM which is not possible on the Grove base shield.
I bought Grove Mega Shield and put this on Arduino Mega 2560, and try to connect this to my Python Pyfirmata and it does not work!
Error = SerialException: could not open port ‘/COM16’: WindowsError(2, ‘The system cannot find the file specified.’)
I have tested using Arduino IDE, it works and there is no problem with my Mega or the Mega Grove Shield.
I have tried changing the port number to 1 and 2, from the Control Panel-Port-Advanced.
Arduino can recognize the shield, but not Python Pyfirmata.