Servo wiring to a breadboard:
There are two types of servos – standard and continuous. They are programmed differently but wired in the same way.
black to ground
white to output (pin)
red to 5v
no resistor needed for a servo
Continuous servos vs standard servos
Continuous servos rotate 360 degrees backwards or forwards. They ideal for powering robots. They cannot be easily programmed to go to a specific position. Note: while the code below references 90 to stop a continuous servo you have find a range between 85-95 to bring a servo to full stop.
Standard servos (also known as hobby servos or positional servos) can rotate 180 degrees – 90 degrees in each direction. They can be programmed to sweep to a specific angle position. They are great for steering robots, opening doors, anything where positions matters.