env_sense

Environment sensor in micropython, designed to run on an ESP8266.

Features:

• PMS7003 for air quality
• BME280 for temperature, pressure, humidity
• minimal cron job to run each of these
• warm up PMS7003 for 30sec before taking readings, per manufacturer recommendations
• apply US EPA's correction factor specifically for PMSX003 sensors
  • include humidity data from BME280 in the correction factor
• convert to US EPA AQI
• publish to thingspeak via MQTT
• option to deep sleep between runs to save power
• publish to pypi for OTA

Installation and updates:

>> import upip; upip.install('micropython-env-sense')

• assumes boot.py brings up your wifi connection
• add import env_sense to your main.py
• enable webrepl
• disable repl in boot.py so the ESP8266's UART can be used for the PMS7003:
• uos.dupterm(None, 1)