Pollution click mikroBUS™ A Click accessory module for use with MikroElektronika mikroBUS™ microcontroller development boards. The Pollution click board contains a WSP2110 VOC gas sensor with high sensitivity to organic vapours such as formaldehyde (methanal), benzene, acetone, alcohol and toluene. With a detection range of typically 1 - 50ppm the sensor is ideal for monitoring harmful pollution from volatile organic compounds. The Pollution click board is designed to operate from a 5V power supply. It communicates with the target MCU via the AN and RST pins on the mikroBUS™ interface.