PID Balancer with Scratch for SPIKE Prime / 51515: Gyro Girl
PDF build instructions:
Learn how to build and code the successor of Gyro Boy from EV3: Creator Academy’s simple balancer robot Gyro Girl!
For the Python solution on Robot Inventor, see:
In this video, we cover the build of the robot as well as explain how PID works in a balancer robot like Gyro Girl. You can also build the model and code it using LEGO Mindstorms Robot Inventor 51515.
01:50 - Building Gyro Girl
05:40 - PID Pseudocode Explanation
11:40 - SPIKE Prime code
For more in-depth science, building and coding on this subject, visit
For more technical explanation of PID: For an explanation of PID, check out
LEGO® is a trademark of the LEGO Group of companies which does not sponsor, authorise, or endorse this video.
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