The Ozone 2 Click Board™ is based on the Winsen MQ131 sensor for Ozone (O3). The sensor outputs an analogue voltage, which is converted by the onboard MCP3551 22-bit ADC converter or it is sent to the microcontroller via AN pin on the mikroBUS, depending on the position of ADC SEL. jumper.
The Ozone 2 Click Board™ is designed to run on 5V power supply. It communicates with the target microcontroller over SPI interface or AN pin on the mikroBUS line.