GY-291 ADXL345 3-Axis Accelerometer Module
- Main Chip: ADXL345
- Model: GY-291
- Power Supply: 3-5V
- Means of Communication: IIC / SPI Communication Protocol
- Measuring Range: ±2g /±16g
- Digital-Output Triple-Axis Accelerometer with a Programmable Full-Scale Range of ±2g, ±4g, ±8g and ±16g and Integrated 16-bit ADCs
- Accelerometer Normal Operating Current: 450µA
- Ultralow Power: as low as 23 μA in Measurement Mode and 0.1 μA in Standby Mode at VS = 2.5 V (typical)
- Sleep Mode Current: 8µA
- Communication: SPI (3- and 4-wire) and I2C Digital Interfaces
- User-Programmable Interrupts
- Wake-On-Motion Interrupt for Low Power Operation of Applications Processor
₨ 349 ₨ 614
GY-291 ADXL345 Accelerometer Price in Pakistan
The GY-291 is a digital three-axis accelerometer module based on the ADXL345. It measures static acceleration for tilt estimation and dynamic acceleration from motion, shock or vibration, with readings available through I2C or three-wire or four-wire SPI.
Key specifications
- Main sensor: ADXL345
- Three-axis digital acceleration measurement
- Programmable ranges: ±2g, ±4g, ±8g and ±16g
- High-resolution measurement up to 13 bits
- I2C and SPI digital interfaces
- Listed module supply range: 3V to 5V
- Activity, inactivity, tap and free-fall interrupt functions
- Built-in FIFO for buffered samples
Common applications
- Tilt and orientation experiments
- Motion, shock and vibration sensing
- Robotics and interactive controllers
- Low-power activity detection
Connection guidance
Confirm the regulator and level-shifting components on the supplied GY-291 revision before selecting supply and logic voltages. Choose either I2C or SPI wiring, set the appropriate interface pins and verify the device address or chip-select configuration in software.
For controller testing, see the Arduino UNO R3 with cable. Explore more accelerometer and IMU sensors from Robonation Pakistan.
For authoritative specifications, review the official Analog Devices ADXL345 documentation.
Frequently Asked Questions
Which interface does the ADXL345 module support?
The ADXL345 is a digital three-axis accelerometer that supports I2C and SPI communication.
Can the ADXL345 measure tilt?
Yes. Static acceleration from gravity can be used to estimate tilt, while dynamic readings can detect motion, shock and vibration.
What voltage should be used with the GY-291 board?
Check the regulator and level-shifting components on the supplied breakout revision. The ADXL345 IC itself is a low-voltage device, even when some modules accept a higher supply.
Which measurement ranges can the ADXL345 use?
The ADXL345 supports programmable full-scale ranges of ±2g, ±4g, ±8g and ±16g.
Does the ADXL345 support tap and free-fall interrupts?
Yes. The sensor provides configurable activity, inactivity, single-tap, double-tap and free-fall functions that can be mapped to its interrupt outputs.
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