SparkFun
SparkFun gator:environment - micro:bit Accessory Board
The SparkFun gator:environment is a micro:bit accessory board that combines the CCS811 gas sensor and BME280 atmospheric sensor for comprehensive environment...
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The SparkFun gator:environment is a micro:bit accessory board that combines the CCS811 gas sensor and BME280 atmospheric sensor for comprehensive environmental monitoring. It measures barometric pressure, humidity, temperature, total volatile organic compounds (eTVOC), and estimated CO2 (eCO2) levels — all over I²C.
Connects to the SparkFun gator:bit via alligator-clip cables for solderless hookup to the micro:bit's I²C pins. The BME280 provides humidity and temperature data to the CCS811, allowing it to fine-tune its gas readings for improved accuracy.
Key Features
- CCS811 Gas Sensor – Detects volatile organic compounds (VOCs)
- eTVOC Output – Total VOCs in parts per billion (PPB)
- eCO2 Output – Estimated CO2 in parts per million (PPM)
- BME280 Atmospheric Sensor – Temperature, humidity, and barometric pressure
- Cross-Calibration – BME280 data improves CCS811 accuracy
- I²C Interface – Connects via alligator clips to gator:bit
Ideal For
- Indoor air quality monitoring
- Weather station projects
- STEM environmental science experiments
- micro:bit classroom activities
Package Contents
- 1× SparkFun gator:environment board
Resources
Jargon buster
Plain-language definitions for the technical terms used above.
- ppm
- ppm means parts per million, a common way to express very small gas concentrations in air. For CO₂ sensors, the ppm range tells you what levels the sensor can measure, such as normal indoor air through to poorly ventilated spaces.
- VOC
- Volatile organic compounds are gases released from things like paints, cleaners, smoke, and some plastics. A VOC reading helps indicate indoor air quality, but it is usually an index or estimate rather than a direct identification of each chemical.
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