Mikroe Pressure 25 Click

Mikroe Pressure 25 Click is a compact add-on board for high-resolution absolute pressure and temperature sensing in embedded designs. The board is based on the PUI Audio PSD0401120. It measures absolute pressure from 30kPa to 120kPa using a MEMS piezoresistive sensing element, a low-noise programmable-gain preamplifier, and a 24-bit delta-sigma ADC.

Signal conditioning and conversion are performed within the sensor using digital filtering, temperature compensation, and linearity correction to improve measurement quality. The Mikroe Pressure 25 Click also includes an integrated temperature sensor with 0.1°C nominal resolution, communicates via an I²C interface with a default 7-bit address of 0x78, and uses an INT pin as an End-of-Conversion indicator.

The board is ideal for barometers, mobile altimeters, floor detection, indoor and outdoor navigation, weather stations, and pressure and temperature logging systems. The design is fully compatible with the mikroBUS socket, supports ClickID automatic board detection, and adds Click Snap flexibility for movable sensor placement.