Accelerometer GY-45 MMA8452 Digital Triaxial Module
The MMA8452Q GY-45-52 is a high-performance, low-power, 3-axis digital accelerometer designed for motion detection and orientation sensing applications. Featuring 12-bit resolution and multiple embedded functions such as freefall detection and activity monitoring, this module is ideal for energy-efficient applications requiring motion-based wake-up and event triggering. It offers I2C communication and is compatible with both 3V and 5V systems.
Package Includes:
- 1 x MMA8452Q GY-45-52 Accelerometer Module
- 1 x Set of male header pins (unsoldered)
Features:
- Supply Voltage: 1.95V – 3.6V
- Interface Voltage: 1.6V – 3.6V
- Selectable Ranges: ±2g, ±4g, ±8g
- Output Data Rate: 1.56 Hz – 800 Hz
- Noise Level: 99 µg/√Hz
- 12-bit and 8-bit digital output
- I2C digital output with up to 2.25 MHz clock
- Two programmable interrupt pins
- Built-in detection for freefall, pulse, and shake events
- Auto-sleep/wake with dynamic ODR adjustment
- High-pass filtered and non-filtered real-time data
- Self-test functionality for device verification
- Low power consumption (6 µA – 165 µA)
- RoHS compliant
Specifications:
- Module Model: GY-45-52
- Power Supply: 3V – 5V (fully compatible with both)
- Dimensions: 20.5 mm × 14.5 mm
- Mounting Hole Diameter: 3 mm
- Mounting Hole Pitch: 15 mm
Pinout:
| Pin Number | Pin Name | Description |
|---|---|---|
| 1 | VCC_IN | Power supply input (3V to 5V) |
| 2 | GND | Ground |
| 3 | SCL | I2C clock line |
| 4 | SDA | I2C data line |
| 5 | INT1 | Interrupt 1 output |
| 6 | INT2 | Interrupt 2 output |
Applications:
- Electronic compass calibration
- Real-time activity detection
- Shake and tap detection
- Freefall sensing in smart devices
- Wearable motion detection
- Power-efficient sleep/wake systems
- Gaming input and gesture recognition
Features:
- Supply Voltage: 1.95V – 3.6V
- Interface Voltage: 1.6V – 3.6V
- Selectable Ranges: ±2g, ±4g, ±8g
- Output Data Rate: 1.56 Hz – 800 Hz
- Noise Level: 99 µg/√Hz
- 12-bit and 8-bit digital output
- I2C digital output with up to 2.25 MHz clock
- Two programmable interrupt pins
- Built-in detection for freefall, pulse, and shake events
- Auto-sleep/wake with dynamic ODR adjustment
- High-pass filtered and non-filtered real-time data
- Self-test functionality for device verification
- Low power consumption (6 µA – 165 µA)
- RoHS compliant
Specifications:
- Module Model: GY-45-52
- Power Supply: 3V – 5V (fully compatible with both)
- Dimensions: 20.5 mm × 14.5 mm
- Mounting Hole Diameter: 3 mm
- Mounting Hole Pitch: 15 mm
Pinout:
| Pin Number | Pin Name | Description |
|---|---|---|
| 1 | VCC_IN | Power supply input (3V to 5V) |
| 2 | GND | Ground |
| 3 | SCL | I2C clock line |
| 4 | SDA | I2C data line |
| 5 | INT1 | Interrupt 1 output |
| 6 | INT2 | Interrupt 2 output |
Applications:
- Electronic compass calibration
- Real-time activity detection
- Shake and tap detection
- Freefall sensing in smart devices
- Wearable motion detection
- Power-efficient sleep/wake systems
- Gaming input and gesture recognition