The request
“Draw an Arduino Uno breadboard with an SG90 servo: VCC to 5V, ground to GND, and signal to D9.”
Then tryMove the servo signal wire to D10.Add a potentiometer input on A0.
What is in this drawing
Read the decisions behind it.
01Power
The servo positive and ground wires use the rails.
02Signal
The PWM control line is routed to D9.
03Common ground
The controller and servo share ground.
Use for a low-power servo prototype; check the power supply for the servo load in a finished build.
More like this
Other examples in this family.
FAQ
Common questions
Which pin controls the servo?
The servo signal wire is connected to Arduino D9.
Why is common ground important?
The control signal needs a shared voltage reference between the Arduino and servo.
Can a servo use more current than the Arduino?
Yes. Check the servo load and use an appropriate supply when needed.