Description
GY-291 ADXL345 Accelerometer Module
The ADXL345 is a small, low power, complete 3-axis MEMS accelerometer modules with both I2C and SPI interfaces. The ADXL345 board feature on-board 3.3V voltage regulator and level shifter, which makes it simple to interface with 5V microcontrollers such as the Arduino.
GY-291 Pin Configuration
Pin Name | Pin Configuration |
| GND | Ground Pin |
| VCC | Power Supply pin (3V to 6V) |
| CS | Chip Select Pin |
| INT1 | Interrupt 1 Output |
| INT2 | Interrupt 2 Output |
| SDO | Serial Data Output |
| SDA | Serial Data Input & Output |
| SDL | Serial Communication Clock |
Features | Specifications:
- 3V-6V DC Supply Voltage
- On-board LDO Voltage regulator
- Built-in Voltage level convertor (MOSFET based)
- It can be interface with 3.3V or 5V Microcontroller.
- Ultra-Low Power: 40uA in measurement mode, 0.1uA in standby@ 2.5V
- Tap/Double Tap Detection
- Free-Fall Detection
- SPI and I2C interfaces
- Measuring Range: ±16g
- Measuring Values (-16g to +16g):
- X: -235 to +270
- Y: -240 to +260
- Z: -240 to +270
How to Use the ADXL345 Accelerometer Module
ADXL345 Accelerometer module consists of 8 pins. Using the ADXL345 module with a microcontroller is very easy. Connect VCC and GND pins to 5V and GND pins of Microcontroller. Also, connect SCL and SDA pins to the SCL and SDA pins of Arduino.
The basic structure of the accelerometer consists of fixed plates and moving plates. When the acceleration is applied on an axis capacitance between fixed plates and moving plates is changed. This results in a sensor output voltage amplitude, which is proportional to the acceleration.
Applications of ADXL345 Accelerometer
- Cost-sensitive, low power, motion- and tilt-sensing applications
- Mobile devices
- Gaming systems
- Disk drive protection
- Image stabilization
- Sports and health devices
Package Includes:
- 1x GY-291 ADXL345 Module