Why Servos doesn't work without 5V on Arduino pins?

Other Hardware Motors, Mechanics, Power and CNC
1

I need help. If i try feed a servo on another 5v, then Servo doesn't work. Bluetooth and Servo don't work together on Arduino (5v pins) What can i do? I have several hours.

2

A servo will work when powered from an external 5V source...but the negative/ground MUST be connected to the Arduino GND.

If that's not your problem then please post a circuit diagram.

Steve

3

Thank you! That's work.