GY-291 ADXL345 three-axis Acceleration of Gravity Tilt Module

GY-291 ADXL345 three-axis Acceleration of Gravity Tilt Module(IIC/SPI transmission)

Description

GY-291 ADXL345 three-axis Acceleration of Gravity Tilt Module is a small, low-power 3-axis accelerometer with high resolution (13-bit) measurement up to ±16g. Digital output in 16-bit twos complement format accessible via I2C or SPI interface. Ideal for mobile devices, it detects static gravity acceleration and dynamic motion or shock. With high resolution (4mg/LSB), it can measure changes in tilt angle of about 0.25°. Special detection features include activity/inactivity sensing, tap detection, and free-fall detection, all customizable via interrupt pins and a 32-FIFO buffer for data storage, minimizing processor load and power consumption. Low-power modes allow intelligent motion-based power management.

Specifications

• Communication: SPI (3- and 4-wire) and I2C digital interfaces
• Power supply voltage: 3.3V – 5V
• Measurement range:±2g, ±4g, ±8g, or ±16g
• Current consumption: 40uA (low power mode), 150uA (normal mode), 320uA (high resolution mode)
• Compatible with Klipper: Yes, no modification or soldering needed
• Temperature Range Operates: over a wide temperature range (-40°C to +85°C) and is RoHS compliant

Pins

• GND: This pin is used for ground.
• VCC: This pin is used for supply voltage.
• CS: This is the chip select pin, which is used to enable communication between the sensor and the microcontroller.
• INT1 and INT2: These pins are used to signal interrupts to the microcontroller.
• SDO: This pin is for SPI mode.
• SCL: This pin is used for clock pulse for I2C communication.
• SDA: This pin is used for transferring data through I2C communication.

Schematic

Wiring Diagram