GY-291 ADXL345 Digital three-axis Gravity Acceleration Inclination Module
| SKU | ELE-COM-123 |
| Ships from | Cardiff, UK |
The GY-291 is a compact ADXL345 accelerometer module that measures acceleration and tilt across three axes, making it an ideal starting point for motion-sensing, robotics, and stabilisation projects.
Built around the Analog Devices ADXL345 chip, this module delivers 13-bit high-resolution measurements at ranges from ±2g up to ±16g — covering everything from gentle tilt detection to hard impact sensing. In addition, it supports both I2C and SPI communication, so it integrates straightforwardly with Arduino, Raspberry Pi, ESP32, and most other popular microcontrollers. As a result, the ADXL345 accelerometer module is one of the most widely used sensors in the maker community.
Key Features of the ADXL345 Accelerometer Module
- 13-bit resolution with selectable measurement range: ±2g, ±4g, ±8g, or ±16g
- Dual interface support: I2C (standard 2-wire) and SPI (3 or 4-wire)
- Wide supply voltage range: 3.3V to 5V
- Ultra-low power consumption — ideal for battery-powered wearables and remote sensors
- Compact PCB: 20.6 × 15.4mm, weighing just 4g
- Standard 2.54mm pitch pin headers — fits directly into breadboards and stripboards
- Built-in activity, inactivity, tap, and free-fall interrupt outputs
Use Cases
- Tilt and inclination sensing in robotics arms and vehicle platforms
- Motion detection and gesture recognition in wearable devices
- Vibration analysis and shock detection for industrial monitoring
- Drone and gimbal stabilisation feedback loops
- Step counting and activity tracking in fitness projects
- Earthquake or impact alert systems
Works Well With
- LilyPad 328 ATmega328P Board — a compact Arduino-compatible microcontroller perfect for wearable and motion-sensing builds using the ADXL345.
Project Ideas & Tutorials
- How to Connect and Calibrate the ADXL345 With Arduino — a step-by-step Instructables guide covering wiring, library setup, and calibration for accurate readings.
- Raspberry Pi ADXL345 3-Axis Accelerometer Python Tutorial — read live X, Y, Z acceleration data from this module on a Raspberry Pi using Python and the I2C bus.
- ADXL345 Hookup Guide — SparkFun Learn — comprehensive reference with wiring diagrams, register map explanations, and example code for all operating modes.
- Interface ADXL345 With Arduino UNO — CircuitDigest — detailed circuit diagram and Arduino sketch showing how to read tilt angles and acceleration values in real time.
Package Contents
- 1 × GY-291 ADXL345 accelerometer module
Free UK delivery
Royal Mail 48 tracked · dispatched same day on orders before 14:00.
Express — £15.98
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