"Bike Prime" Programming Instructions

30.03.2021 NOTE: The recent Firmware update appears to have altered the way the Spike Prime Brick process information. If your model keep falling over, try the following changes: 1) Add a "Set Yaw to 0" before the variable initialisation 2) Set "Steer Power" Variable to 2.6 instead of 3 3) Set "Ki" Variable to -0.03 instead of 0.02 4) Set "Kd" Variable to 18 instead of 16 5) Set Movement Speed to 90% instead of 80% *** Check out the How-To-Program video for the Project Bucephalus and Creator Academy "Bike Prime" model. See Bike Prime in action at    • Meet "Bike Prime" (Project Bucephalus and ...   Developed in collaboration with Creator Academy, Bike Prime is a fun and unique demonstration of a self-balancing motorbike design on the LEGO® Education SPIKE™ Prime platform. For building Bike Prime, please subscribe to Creator Academy and check out    • Bike Prime Building Instructions   For an explanation of PID, check out    • What Is PID Control? | Understanding PID C...   NOTE: This is the updated video that corrects an error in the original! Help and Support: These are the most common problems encountered by students attempting to build and program their own Bike Prime model - Problem: Bike wheel moving backwards instead of forwards. Common Cause: Mainly because students reversed the motors when building OR used the wrong motor order in the ’set movement motors’ block. Problem: Bike falls over almost immediately. Common Cause 1: front wheel not built aligning with the 0 degree position on motor. Common Cause 2: incorrectly inputting the math parameters in the ’set result’ block. Using ‘+’ instead of ‘*’, wrong brackets etc. Common Cause 3: incorrectly setting gain values, or missing gain values blocks. Problem: Bike doesn’t move Common Cause: incorrect symbol for ‘repeat until bike falls’ block parameter. Using ‘less than‘ instead of ‘greater than’ etc Problem: Bike travels a short distance before falling Common Cause 1: floor is too smooth and slippery. Common Cause 2: insufficient battery Check the comments for more feedback and information!