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Small green circuit board with four-pin Grove connector and ADXL345 accelerometer chip

Seeed Studio

Seeed Studio Grove ADXL345 3-Axis Accelerometer ±16g

SKU CH-0KJM-B2PH3

A 3-axis digital accelerometer measuring up to ±16 g with 13-bit resolution and a Grove I2C interface

  • TypeSensors
  • 3-axis sensing detects motion, taps and freefall with 13-bit resolution up to ±16g
  • Ultralow power draw of 23 µA in measurement and 0.1 µA in standby at 2.5V
  • Grove I2C and SPI interfaces enable plug-and-play connection to Arduino and Seeeduino boards
  • Survives 10000g shock for reliable operation in high-impact environments
  • High 3.9mg/LSB resolution measures inclination changes smaller than 1.0°

Compact 3-Axis Accelerometer for Motion Sensing

The Grove ADXL345 is a new digital accelerometer that measures static and dynamic acceleration on three axes up to ±16 g. It connects through a 4-pin Grove I2C interface for direct use with Arduino and Seeeduino boards. The module suits mobile and wearable projects that need tilt, tap or freefall detection.

High Resolution with Ultra-Low Power Draw

The sensor delivers 13-bit resolution at 3.9 mg per LSB, detecting inclination changes below 1.0 °. Typical current draw is 23 µA at 2.5 V in measurement mode and 0.1 µA in standby, giving long battery life in portable devices. It survives mechanical shocks up to 10,000 g without damage.

Grove I2C Interface Decides Compatibility

The onboard 4-pin Grove connector provides a 3–5 V digital I2C link; SPI is supported on the chip but not broken out on this board. Projects that require a native SPI pin header or an analog output must use a different module.

Highlights

  • 3-axis sensing detects motion, taps and freefall with 13-bit resolution up to ±16g
  • Ultralow power draw of 23 µA in measurement and 0.1 µA in standby at 2.5V
  • Grove I2C and SPI interfaces enable plug-and-play connection to Arduino and Seeeduino boards
  • Survives 10000g shock for reliable operation in high-impact environments
  • High 3.9mg/LSB resolution measures inclination changes smaller than 1.0°

Specifications

TypeSensors

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