I am building a robot, and recently got servos for making the hands. The first servo I set up with near ease, and was able to control it over the bluetooth dongle I am using. When I tried my second servo, I was able to control it once before the bluetooth lost connection.
To diagnose the problem, the first thing I did was unplug the second servo. It works with no and one servo attached, but with two the bluetooth crashes.
I am using standard servos with the Servo.h library. All of my wiring is done on a breadboard, which I am sure is correct.
Do you think the problem could be due to the fact that I'm not providing an external power source for my servos?