Hi! I am working on a project which will include multiple sensors, magnetic valves, LEDs, buttons, etc.
Until now an Arduino Uno board was sufficient but I am starting to run out of pins.
Could I somehow connect another Arduino Uno board or should I look into a larger board like Due or Mega?
Also, a bump up in speed would be nice and I have the impression that creating a connection between 2 Uno boards would not help.
Thank you in advance!