Adafruit ENS160 MOX Gas Sensor - Sciosense CCS811 Upgrade - STEMMA QT / Qwiic | ID: 5606

This is a very fine air quality sensor from the sensor experts at ScioSense, with I2C interfacing so you don't have to manage the heater and analog reading of a MOX sensor. It combines multiple metal-oxide sensing and heating elements on one chip to provide more detailed air quality signals.
The ENS160 is the replacement for the popular, but now-discontinued CCS811. It has similar functionality but does require all new driver code so be aware if you are updating from an original design with the CCS811 that some work is required to upgrade.
The ENS160 has a 'standard' hot-plate MOX sensor, as well as a small microcontroller that controls power to the plate, reads the analog voltage, and provides an I2C interface to read from. ScioSense provides an Arduino library with examples of reading the four raw resistance values and also the TVOC and eCO2 and a Python/CircuitPython library that can be used with Linux computers like the Raspberry Pi or our CircuitPython boards.

Features:
Detection of reducing (VOCs) and oxidizing gases
Support for up to 4 independent MOX gas sensors
Integrated sensor measurement and heater drive control
Integrated pre-calibrated sensor fusion and Automatic Baseline Correction algorithms
Multiple IAQ outputs (TVOC, eCO2, AQI)
I2C and SPI interfaces, however, please note the libraries do not support SPI interface.
<3 minutes warm-up
<1 hour start-up
High immunity to humidity and ozone
I2C address 0x53 cannot be changed