December 23, 2011
I have a quick question concerning stacking arduino shields. Can you stack as many shields as you want as long as none of them use the same pins?
I have Ro-Bot-X's robot builders shield as well as a xbee shield that I would like to stack onto an Uno. From my understanding, the xbee shield just uses pin 0 and 1 for serial and breaks out the rest. And then the robot builders shield doesnt touch pins 0 or 1.
The other concern I have is about the external power. I'm providing external power to the robot builders shield to control the motors but I want to power the xbee from the arduino. Can i stack the xbee shield onto the arduino and then the motor controller shield on top of that?
Here are links to more information on the shields
Thanks, and happy holidays :)