The board packs a lot of sensors into a tiny form factor. You can measure temperature, pressure, humidity, eCO2, and calculate an air quality index. The board also features a black and white 128 × 64 OLED display and three status LEDs. You’ll also find a real-time clock module and 1Mb of onboard EPROM memory allowing for long-term storage of the data you collect.
To get up and running, all you need to do is add your own micro:bit and three AA batteries. And if you want to be a little more environmentally friendly, you can add three rechargeable batteries and a solar cell using the onboard connections. The Pimoroni website has links for learning how to use all the sensors and more. Head over to their site for more details!
Compact air quality sensing.