The Keyestudio MMA8452Q 3-Axis Digital Acceleration Tilt Sensor is a low-power, high-resolution (12-bit) capacitive accelerometer featuring flexible user-programmable options and dual interrupt pins. It supports selectable measurement ranges of ±2g, ±4g, and ±8g, providing both high-pass filtered and raw data in real time. The sensor’s embedded interrupt functions reduce power consumption by eliminating constant data polling and enable inertial wake-up signals, allowing the device to operate efficiently in low-power mode while monitoring motion events. Ideal for precise motion detection and tilt sensing applications.
Specifications
- Power Supply Voltage： DC 3.3V to 5 V
- ±2g/±4g/±8g Optional dynamic range
- Output data rate (ODR) range：1.56 Hz to 800 Hz
- Noise：99μg/√Hz
- 12 bits and 8 bits digital outputs;
- I2C digital output interface (up to 2.25 MHz when the pull-up resistor is 4.7kΩ);
- Two programmable interruption pins applied to six interruption sources;
- Three motion detection embedded channels: free fall detection, pulse detection, shaking detection;
- Direction (transverse/longitudinal) detection with setting lag compensation;
- Automatic arousal and auto-dormant ODR can be automatically altered;
- High-pass filtering data can be exported in real time;
- Power consumption： 6μA – 165μA
