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.