ADXL345 Accelerometer

The ADXL345 is a versatile 3-axis digital accelerometer designed for low-power, high-resolution motion detection. It provides 13-bit resolution at up to ±16g, allowing precise measurement of acceleration forces in three dimensions (X, Y, Z). This sensor communicates via standard I2C or SPI digital interfaces, making it easy to integrate with microcontrollers like Arduino, ESP32, and Raspberry Pi. Key features include built-in motion detection, free-fall sensing, and interrupt generation capabilities. The device operates from 2.0V to 3.6V, making it suitable for battery-powered applications. Its compact 3mm x 5mm x 1mm package is ideal for space-constrained designs. Common applications include tilt sensing in mobile devices, activity tracking in wearables, vibration monitoring in industrial equipment, and orientation detection in robotics. The ADXL345 is widely preferred due to its ultralow power consumption (typical 40µA in measurement mode), excellent noise performance, and robust digital output that eliminates the need for external ADCs. Choose this accelerometer for reliable, high-precision motion sensing in your electronics projects.