The Kitronik Air Quality Control HAT for Raspberry Pi lets you monitor, log, and react to environmental data using the BME688 sensor. It measures temperature, pressure, humidity, air quality index, and eCO2, with an on-board OLED display and ZIP LEDs for visual feedback. An RP2040 co-processor handles the analogue inputs and LED control.

Beyond sensing, the HAT provides connection points for external devices including analogue sensors, servos, motors, and heater pads — enabling reading-based actions and automated responses. It conforms to the Raspberry Pi HAT standard and is powered directly via the GPIO connector.

Key Features

• BME688 Sensor – Temperature, pressure, humidity, air quality index, and eCO2
• 128×64 OLED Display – Black and white screen for data visualisation
• 3× ZIP LEDs – Programmable status indicators (controlled via RP2040)
• Piezo Buzzer – Audio alerts and notifications (GPIO26)
• 2× High-Power Outputs – GPIO13 and GPIO19 (1A max each)
• Servo Output – GPIO6 with supply voltage
• 3× Analogue Inputs – ADC0, ADC1, ADC2 via RP2040 (each with 3.3V and GND)
• Additional Breakouts – GPIO22, GPIO23, GPIO24 + 3.3V and GND on solder pads
• I2C Bus – GPIO2 and GPIO3 for BME688 and OLED

Compatibility

Works with all Raspberry Pi versions featuring the 40-pin GPIO connector: Pi 2, 3, 4, 5, Zero, and Zero 2. Tested with Pi 2, 3, 4, 5, and Zero 2.

Specifications

• Dimensions – 65 × 56.5 × 10.2mm
• PCB Thickness – 1.6mm
• Power – Via Raspberry Pi GPIO connector (5V or 3.3V as required)

Ideal For

• Indoor air quality monitoring and data logging
• Environmental control and automation projects
• STEM education with Raspberry Pi
• Smart home environmental sensing

Package Contents

• 1× Kitronik Air Quality Control HAT for Raspberry Pi

pip install KitronikAirQualityControlHAT

Resources

• Python Library, README and Examples (GitHub)