Mikroe Air Quality 5 Click (Mikroe-3056) – MiCS-6814 Triple MOS Gas Sensor Board, I²C, Multi-Gas Detection, 3.3V/5V, mikroBUS

The board is designed to operate from a dual supply voltage of either 3.3V or 5V DC. You must select the appropriate voltage on your host mikroBUS carrier board to match. The onboard ADC and sensor heater are powered directly through the mikroBUS VCC pin.

The board communicates exclusively via the I2C interface. The Texas Instruments ADS1015 ADC handles analog-to-digital conversion from the three MiCS-6814 sensing elements. You must use an I2C-compatible host (like an ARM MCU) and read the pre-conditioned digital values from the ADC's registers, which can then be correlated to specific gas concentrations using provided algorithms or calibration data.

Yes, like all MOS sensors, the MiCS-6814 requires calibration against known gas concentrations for accurate quantitative measurement. It is sensitive to a broad range of gases including carbon monoxide (CO), nitrogen dioxide (NO₂), ammonia (NH₃), methane (CH₄), ethanol, hydrogen, propane, and isobutane. The three independent sensing elements (RED, OX, NH3) provide a response pattern that can help differentiate between these gases.

Yes, but not directly. The Air Quality 5 Click uses the mikroBUS form factor. To interface with an Arduino or Raspberry Pi, you will need a compatible mikroBUS shield or carrier board that breaks out the I2C pins and provides the correct 3.3V or 5V power. The board itself is a plug-in module for the MikroElektronika ecosystem.