Learn to use servo motors as an output by programming them to turn to specific angles.
Piperbot and Pip have created a pretty convincing robot to enter the Mars Creature Race for the Cause. Now it’s time to put it to the test! In Event 1, you will build and code the Walker, a quadruped robot, to walk (and run!) like a dog.
A servo, which is short for servomotor, is a special kind of motor that is used to control something by moving it. A simple motor moved by spinning continuously. A servo turns to a specific position and it uses gears to transform the high speed of the motor into more force so it can move things more easily.
The servo is connected using three wires: one for ground, one for power, and one for a signal that tells the servo motor what position to turn to. The Pico tells the servo what position to turn to by changing the width of the pulse that it is sending out. A pulse with a shorter "ON" time will turn to one side, and a pulse with a longer "ON" time will turn to the opposite side.
The motor inside of the servo turns very fast, but it is also weak - it cannot apply very much force. The gears inside the servo convert the motor's high speed and low force into a slower speed with more force.
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CA 3-5.AP.17. Test and debug a program to ensure it accomplishes the intendedtask.
CA 3-5.CS.2. Demonstrate how computer hardware and software work together as a system to accomplish tasks.
CA 3-5.CS.3. Determine potential solutions to solve simple hardware and software problems using common troubleshooting strategies.