This simple array monitors changes in air quality from a Molekule Air Mini. Data is collected using Raspberry Pi Pico W, BME280, and an SGP40 connected via I2C.
AZ-Delivery ESP32 Dev Kit C V2 with SparkFun Atmospheric Sensor Breakout - BME280 (Qwiic)
Receiving environmental data from a Raspberry Pi Zero W connected to a BME280 sensor mounted outside on a North facing wall. Chart shows last 7 days.