Smartwatch Compass Kit

A round smartwatch-style screen plus a compass chip that senses Earth's magnetic field, making a hand-held digital compass.

Kit photo coming soon

 

Key Features

  • Lab 1. Meet the Pico — check that your Pico is
  • Lab 2. Blink the Onboard LED — your first
  • Lab 3. Find the Compass on the Bus — wire up the
  • Lab 4. Read the Compass Once — grab one
  • Lab 5. Say Hello on the Screen — wire up the
  • Lab 6. Show the Numbers — combine the

Key Benefits

  • Free, open lessons. The STEM Robots textbook has the kit page, wiring, and MicroPython code.
  • Ready-made curriculum. 10 additional lab pages walk students through the build step by step.
  • Classroom friendly. Built on a solderless breadboard or no-solder connectors.
  • Instant feedback. Students see their code's results on lights or a display.
  • Real-world data. Students read sensors and turn measurements into decisions.
  • Budget. About $14.50 (round display $3.19, compass module about $2.50; Pico $4, breadboard $2, wires $1, USB cable $2).

Parts

Part (price)Role
Raspberry Pi Pico ($4)Microcontroller
TT DC Gear MotorsMotor / actuator
GC9A01 Round TFT ($3.19)Display
HMC5883L / QMC5883L CompassSensor
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