Hello Servos

Servos are a type of motor with internal feedback they can move to a set position. The type of servo you will come across most frequently have a set range of motion, but with precise position control you can do a whole manner of actions within the mechanics of your robot! Servo motors (or anything else you connect to the servo ports of your BrainBox) are controlled by accessing R.servos[], similar to how motors are accessed.

import robot
import time

R = robot.Robot()
R.servos[0].mode = robot.PWM_SERVO

R.servos[0] = 50

However, where the value of a motor determines the speed it turns, the value of a servo controls the position it is at on its rotation, with a range of -100 to 100. Try it out on your robot to see which values correspond to each position!

Tip

When your robot is turned off, the brain will automatically set all of its servos to the 0 position. Make sure you factor this in when you run your robots!