Mitsumi EASR940C04A-B1 Development Kit

Mitsumi EASR940C04A-B1 Development Kit is an evaluation platform for the MMR940C04A digital-output differential pressure sensor. The MMR940C04A sensor provides factory-calibrated, temperature-compensated pressure measurements. The sensor also supports a differential pressure range of ±40cmH2O (±3.922kPa) and delivers high-resolution digital output. A built-in low-pass filter helps reduce noise and improve measurement stability. The EASR940C04A-B1 kit includes an MMR940C04A I2C sensor board and a Sensor Shield I2C cable for quick connection and testing. This kit enables rapid prototyping and evaluation of pressure-sensing applications and is designed for use with the Mitsumi Sensor Shield Kit Ver. 2 and compatible Arduino® boards.

Features

  • Designed for evaluating the MMR940C04A digital-output micro differential pressure sensor
  • Includes an MMR940C04A I2C sensor board and a Sensor Shield I2C cable
  • Compatible with Arduino platforms through the MITSUMI Sensor Shield Kit Ver. 2
  • Supports digital pressure measurements via an I2C interface with a 7-bit slave address of 0x67
  • Features a differential pressure measurement range of ±40cmH2O (±3.922kPa) for the C04 version
  • Provides factory-calibrated and temperature-compensated pressure output, eliminating the need for user correction
  • Offers a highly effective resolution of 0.002cmH2O RMS (0.196Pa RMS) in MODE4
  • Incorporates a built-in low-pass filter to help reduce measurement noise
  • Operates from a 3.0V to 3.6V supply, 3.3V typical

Applications

  • Heating, Ventilation, and Air Conditioning (HVAC) systems
  • Variable Air Volume (VAV) systems
  • Vacuum cleaners
  • Refrigerators and household appliances
  • Electronic musical instruments
  • Gas meters
  • Alcohol testers (breath analyzers)
  • Medical equipment

Kit Contents

  • Shield
  • I2C sensor board
  • I2C cable

Block Diagram

Block Diagram - Mitsumi EASR940C04A-B1 Development Kit
Published: 2026-10-06 | Updated: 2026-10-06