Hi, I have a question about connecting the relay and the servo motor. Servo that I own is micro servo 9g sg90 and the relay is hw 482. What I am not understanding is how should I connect the servo to the relay, more precisely the servo to the normally open/normally closed terminal. From the various tutorials on the internet I have seen, for example this one:
the guy in the video cuts the (positive?) wire in half, and connects one half to the COM terminal and the other half to either NC or NO terminal. But I do not understand how to connect the servo to the relay. I assume ground servo wire goes to the ground of arduino, and the signal servo wire goes to the digital pin(PWM). Oh and the arduino is uno r3.