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Small rectangular green circuit board with a white Grove connector and a tiny black sensor chip

Seeed Studio

Seeed Studio Grove 3-Axis Digital Accelerometer ±1.5g

SKU CH-QH3C-0RCBR

A 3-axis digital accelerometer measuring ±1.5 g with shake and tap detection, 10,000 g shock survivability and ultra-low-power operation via a Grove unified socket

  • Product typeSensors
  • Gesture detection with shake and tap sensing
  • ±1.5 g range suits orientation and motion projects
  • Ultra-low power extends battery life in portable builds
  • Grove unified socket enables plug-and-play integration
  • 10,000 g shock survivability ensures rugged durability

Purpose and audience

This Grove accelerometer measures motion and orientation across three axes with a ±1.5 g range. It suits hobbyists and engineers building gesture detection, shake detection or tap detection into microcontroller projects that need a simple plug-and-play sensor.

Thermals noise and power

The module is based on the Freescale MMA7660FC, which is designed for ultra-low-power operation. It draws minimal current during normal sampling, produces no audible noise and generates negligible heat, making it suitable for battery-powered or always-on devices.

Deciding specification

The measurement range is limited to ±1.5 g, so the sensor cannot capture high-g impacts or vibrations beyond that threshold. Buyers who need a wider range for crash detection or industrial shock monitoring should select a different accelerometer.

How it compares

Measured against everything we stock in Sensors, Transducers & Thermometers, at today’s prices. Recalculated every night.

Price $20.99
Cheaper than about 74% of the 255 comparable items (median $39.99).

Specifications

Product
Product typeSensors

Questions about this item

How do I connect the Grove accelerometer to my board, and what step is often missed?

Align the keyed Grove cable with the unified socket and press until it clicks; the step often missed is securing the cable so vibration does not unseat it during 10000 g shock events.

What maintenance or replacement will the MMA7660FC sensor need over time?

The solid-state MEMS element has no moving parts to wear out; only the Grove connector may need reseating if the cable loosens after repeated handling.

At what acceleration does the ±1.5 g range stop measuring and saturate?

The output clips at ±1.5 g; sustained motion beyond that limit reads as the maximum code until acceleration drops back into range.

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