9-DOF IMU Kit

Wires a 9-axis motion sensor to a bare Pico and shows live numbers proving a robot can sense which way it is turning.

Key part: 10-DOF IMU sensor board

Key part: 10-DOF IMU sensor board (kit photo still needed)

Key Features

  • Uses the HMC5883L / QMC5883L Compass
  • Uses the MPU6050
  • Uses the MPU9250
  • Uses the Raspberry Pi Pico RP2040

Key Benefits

  • Free, open lessons. The STEM Robots textbook has the kit page, wiring, and MicroPython code.
  • Classroom friendly. Built on a solderless breadboard or no-solder connectors.
  • Real-world data. Students read sensors and turn measurements into decisions.
  • Budget. About $15 (L3GD20/LSM303 module about $7–$9 on eBay, Pico $4, wires $1, USB cable $2).

Parts

Part (price)Role
Raspberry Pi Pico ($4)Microcontroller
HMC5883L / QMC5883L CompassSensor
MPU6050Sensor
MPU9250Sensor
830-Point Breadboard ($1.10)Breadboard
Micro-USB Data Cable ($2.50)Power and programming cable

Microcontroller listed first. Prices shown only where known; see the source book for quantities, wiring, and current prices.

About this kit: From the STEM Robots collection.
Source: STEM Robots