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Enviro+ Pi Hat for Indoors and Out Air Pollution Monitoring

By on June 22, 2019
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The Raspberry pi hat, called Enviro+, comes from Pimoroni, which is pitching the add-on as a cheap alternative to expensive environmental monitoring stations.

With an additional particulate matter sensor, the Pi-based air-monitoring device can be placed just outside a house. Without the additional sensor, it can be used to monitor indoor air characteristics.

“Designed for environmental monitoring, Enviro+ lets you measure air quality (pollutant gases and particulates*), temperature, pressure, humidity, light, and noise level. When combined with a particulate matter sensor*, it’s great for monitoring air quality just outside your house (more information below), or without the particulate sensor you can use it to monitor indoor conditions.”

The base Enviro+ includes a single sensor for measuring temperature, air pressure, and humidity. A separate sensor measures light and proximity, and another analog sensor measures gas.

The Enviro+ itself costs $57, while the Plantower PMS5003 particulate matter sensor with a cable costs an extra $32. Pimoroni’s recommended setup includes a Raspberry Pi Zero, a 16GB microSD card, and a Raspberry Pi Universal Power Supply unit.

Main features are:

  • BME280 temperature, pressure, humidity sensor
  • LTR-559 light and proximity sensor
  • MICS6814 analog gas sensor
  • ADS1015 analog to digital converter (ADC)
  • MEMS microphone
  • 96″ colour LCD (160×80)
  • Connector for particulate matter (PM) sensor*
  • pHAT-format board
  • Fully-assembled
  • Compatible with all 40-pin header Raspberry Pi models
  • Python library

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