CALLIOPE Board CO2 Sensor Kit with mini 3.0 Icon - Air Quality Programming Kit

Monitoring indoor air quality and understanding environmental data is a challenge for young learners and educators who need a hands-on, programmable solution. The CALLIOPE Board CO2 Sensor Kit combines the Calliope mini 3.0 Icon microcontroller board with a Sensirion SCD30 CO2 sensor module, enabling students to measure carbon dioxide levels and explore air quality through coding.

Who is it for

This kit is designed for STEM education, suitable for ages 8 and up. It is ideal for classrooms, makerspaces, and home learning environments where users want to build projects focused on environmental sensing and data logging.

Main features

• Calliope mini 3.0 Icon board with Nordic nRF52833 microcontroller (ARM Cortex-M4 with FPU, 64 MHz)
• 512 KB flash memory and 128 KB RAM for program storage and execution
• Bluetooth 5.0 and Bluetooth Low Energy for wireless connectivity
• On-board 5x5 red LED matrix, two programmable buttons (A and B), and reset button
• Integrated sensors: accelerometer, magnetometer, temperature, light, and microphone
• Included Sensirion SCD30 CO2 sensor module with NDIR technology, measuring 400–10000 ppm with accuracy ±(30 ppm + 3% of reading)
• CO2 sensor connects via I2C interface
• Supports Microsoft MakeCode, Open Roberta Lab, MicroPython, and Arduino IDE
• Power options: USB (5V) or battery (3V via JST connector)
• Includes USB cable, JST cable, and instructions

Specifications

• Microcontroller: Nordic nRF52833 (ARM Cortex-M4 with FPU)
• Clock speed: 64 MHz
• Flash memory: 512 KB
• RAM: 128 KB
• Wireless: Bluetooth 5.0, BLE
• Display: 5x5 LED matrix (red)
• Buttons: 2 programmable (A, B), 1 reset
• On-board sensors: accelerometer, magnetometer, temperature, light, microphone
• CO2 sensor: Sensirion SCD30, NDIR, range 400–10000 ppm, accuracy ±(30 ppm + 3% of reading), I2C interface
• Programming environments: MakeCode, Open Roberta Lab, MicroPython, Arduino IDE
• Power: USB 5V or battery 3V via JST
• Recommended age: 8+ years

Tips

To get started, connect the CO2 sensor to the Calliope mini using the included JST cable and I2C pins. Use MakeCode or MicroPython to read CO2 values and display them on the LED matrix. For accurate measurements, allow the sensor to stabilize for a few minutes after powering. The kit is ideal for projects like classroom air quality monitors, ventilation alerts, or data logging experiments.