Hello everyone!! I want to connect a Servomotor 5v-7,4v to Arduino UNO R3, with the signal cable to a PWM (-9) and the + and - cable to an external battery of 7,4v 2000mah. Arduino will be powered by another battery 9v to the jack if it is needed. The Arduino GND to the protoboard connected with t…

Arduino with external power supply for Servomotor

LarryD November 25, 2022, 5:30pm 2

Your connections look okay.

7.5v to the servo needs to be checked.