Remote Lab: Programming Calliope Mini with MicroPython

Many students encounter embedded systems through complex C/C++ syntax before grasping fundamental concepts. Our Calliope Mini Lab takes a different approach—using MicroPython to make sensor programming accessible while working with real educational hardware designed for learning.

The lab introduces embedded systems programming through the Calliope mini, a microcontroller designed for education with built-in sensors and displays. Students learn to:

The practical application? An open-ended environmental monitoring system where students create their own applications—from simple temperature displays to light-based alarms or music boxes that respond to sensor input.

Unlike the previous labs with specific tasks, this lab encourages experimentation. Students might:

Environmental Monitor: Read temperature and light sensors continuously, displaying values on the LED matrix with visual indicators (happy face for warm, sad face for cold).

Light-Based Alarm: Trigger LED patterns or sounds when light intensity crosses thresholds—useful for detecting if a door opens or lights turn on/off.

Music Box: Play different melodies based on environmental conditions—temperature changes trigger different tunes.

Data Logger: Stream sensor readings over the serial interface for external processing or visualization.

The goal isn’t solving a predetermined problem but gaining comfort with hardware programming, sensor integration, and MicroPython syntax.

Students work with the Calliope mini V3, featuring:

The hardware is pre-configured with MicroPython firmware. Students write code in the Editor Module, upload via mpremote through the Terminal Module, and watch the device respond through live video (Streaming Module).

This lab teaches embedded systems fundamentals through accessible Python syntax. Students learn:

The skills transfer to larger embedded projects—IoT devices, robotics, home automation, and industrial monitoring systems. MicroPython’s readability lets students focus on concepts rather than syntax, while still working with real hardware constraints.

The Code Logger Module anonymously captures student work, helping instructors identify common challenges and improve the curriculum. The open-ended format encourages creativity and experimentation—essential skills for embedded systems development.

The lab demonstrates how Edrys-Lite makes hands-on embedded systems education accessible without requiring students to own hardware or visit physical labs. Students at TU Bergakademie Freiberg complete these exercises remotely, gaining practical skills from anywhere with internet access.

Ready to teach MicroPython and sensor programming through hands-on remote experimentation? Build your Calliope mini lab with Edrys-Lite!

Explore the lab: github.com/edrys-labs/lab-calliope-mini

Learn more about Edrys-Lite: edrys-labs.github.io