MPS20N0040D HX710B Pressure Sensor Module

The MPS20N0040D HX710B Pressure Sensor Module is a compact, high-precision breakout board designed to measure air and liquid pressure with digital output accuracy. At its core, the module pairs an MPS20N0040D piezoresistive pressure sensor, built around a Wheatstone bridge, with the HX710B chip, a precision 24-bit analog-to-digital converter originally designed for weigh scale and industrial control applications. This pairing eliminates the need for manual signal calculation, delivering clean digital pressure readings straight from the board.

This module is ideal for hobbyists, makers, and engineers building water level sensors, barometric monitors, differential pressure gauges, or basic altimeters. It connects to a 2.5mm soft tube, letting you sense both air pressure and liquid depth through hydrostatic pressure, making it a popular choice for smart irrigation systems, tank monitoring setups, and DIY weather stations. With a measurement range of 0-40KPa, the sensor covers a wide range of low-pressure sensing applications, and its 24-bit resolution allows for detecting even minute pressure changes.

Wiring is straightforward with four pins: VCC, OUT, SCK, and GND, communicating over a simple synchronous digital protocol similar to the widely used HX711 load cell interface, so existing HX711-compatible libraries can often be adapted for pressure readings. Compact and easy to mount, this module is a reliable addition to any Arduino, ESP32, or Raspberry Pi based sensing project.

Specification:

• Pressure Sensor : MPS20N0040D
• ADC Chip : HX710B
• Pressure Range : 0-40KPa
• Resolution : 24-bit
• Board Dimensions : 18.6mm x 13.5mm
• Interface : Digital (VCC, OUT, SCK, GND)
• Tube Connection : 2.5mm Soft Tube