|
|
|
Air quality click carries an MQ-135 sensor for detecting poisonous gases that impact air quality in homes and offices. The gas sensing layer on the sensor unit is made of tin dioxide (SnO2), which has lower conductivity in clean air. The conductivity increases with air pollution. The sensor reacts to ammonia (NH3), nitrogen oxides (NOx), benzene, smoke, CO2 and other harmful gases. To calibrate the sensor for the environment you'll be using it in, Air quality click has a small potentiometer that allows you to adjust the load resistance of the sensor circuit. Air quality click communicates with the target board through AN (OUT) mikroBUS line. The board is designed to use a 5V power supply only. |
|
|
|
|
|
Air quality 2 click carries the iAQ-Core Indoor Air Quality sensor that measures VOC levels and provides CO2 equivalent and TVOC equivalent predictions. The click is designed to run on either 3.3V or 5V power supply. It communicates with the target MCU over I2C. |
|
|
|
|
|
Pollution click has high sensitivity to organic gases such as methanal (also known as formaldehyde), benzene, alcohol, toluene, etc. The click carries the WSP2110 VOC gas sensor with the detection range of 1~50ppm (parts per million). Pollution click is designed to run on a 5V power supply. It communicates with the target MCU over AN and RST pin on the mikroBUS™ line. |
|
|
|
|