GY-45 MMA8452 3-Axis Accelerator Module

The GY-45 MMA8452 module is a 3-axis digital accelerometer board built around the NXP (Freescale) MMA8452Q. It measures acceleration on the X, Y and Z axes with selectable ±2, ±4 or ±8 g ranges and sends 12-bit readings over I2C. Built-in motion, tap, free-fall and orientation detection can raise interrupts, so your Arduino or ESP32 does not have to poll the sensor all the time.

GY-45 MMA8452 Specifications

• Sensor: MMA8452Q 3-axis accelerometer
• Ranges: ±2 g, ±4 g or ±8 g, selectable
• Resolution: 12-bit, with an 8-bit mode
• Interface: I2C
• I2C address: 0x1C or 0x1D, set by the SA0 pin
• Interrupts: 2 programmable interrupt pins
• Built-in detection: motion, free fall, tap and orientation
• Module supply: 3–5 V DC (vendor rating)

GY-45 MMA8452 Applications

• Tilt and orientation sensing
• Tap and shake gestures for user input
• Free-fall and impact detection
• Robots, drones and motion data logging

What's in the Box

• 1 × GY-45 MMA8452 3-axis accelerometer module

Tip: The MMA8452Q itself is a 3.3 V chip. If you use a 5 V Arduino, check whether your board has level shifting on SDA and SCL, and add a level converter if unsure. Run an I2C scanner sketch first to confirm the address before loading an MMA8452 library.

Orders placed before 14:00 are ready for pickup the same day. Delivery across Lebanon usually takes 1–3 working days.