Mikroe POLLUTION CLICK (Mikroe‑2516) – WSP2110 VOC Gas Sensor Board, Analog, mikroBUS, Detection Range: 1~50 ppm

The POLLUTION CLICK is designed to operate strictly on a 5V DC power supply, which it draws from the mikroBUS socket's VCC pin. Do not apply voltages outside this specification, as it may damage the onboard WSP2110 sensor and conditioning circuitry.

The board provides an analog voltage output on the mikroBUS AN (Analog) pin. Connect this pin to your MCU's ADC input channel. The voltage level correlates with VOC concentration. A GPIO pin (RST on mikroBUS) is also used to control the MOSFET that switches the sensor's heater for power saving.

The WSP2110 MOS sensor requires an extended initial stabilization period of approximately 120 hours (5 days) after first power-up to reach its optimal operating temperature and stable baseline resistance. For accurate measurements, this preheating period is necessary before performing final calibration or relying on readings.

Yes, the board includes a potentiometer labeled P1 specifically for trimming the sensor's sensitivity. Adjusting this pot allows you to calibrate the analog output range to better match your expected VOC concentration levels and ADC reference voltage.

Yes, but you need a host board with a mikroBUS socket. You can use Mikroe's development boards (like Clicker 2) or adapter shields that provide a mikroBUS interface for Arduino or Raspberry Pi. The board itself is not directly pluggable into standard Arduino headers or Raspberry Pi GPIO without such an adapter.