i need to power 6 servos for my robotic arm with pot control...can i use external ps and if I can, how do I interface it both with my arduino and servo with pot control or can I use a separate battery like Ni Cad.
I am new to arduino and need guidance with my project...please help.
You can use either a power supply or NiCad/NiMH battery. You connect the +ve direct to the servos +ve and the -ve to servo ground AND also to the Arduino ground.
Steve