1. Download "4_calibration.hex" to micro:bit 2. Connect usb cable to PC, power on the MiniPOW & open "MiniPOW_馬達校正值_V1.exe" on PC. 3. Fine-tune the P0/P1/P2 value and record the final value. (ex: 3, -2 ,3 ) 4. MakeCode open "4_MiniPOW_robot_V1.hex" and setting the offset to the program. 5. Save new hex file and download to micro:bit