ADXL345 is a compact, ultralow power 3axis accelerometer with resolution and a broad measurement range. It combines precise motion sensing with flexible digital interfaces to fit into spaceconstrained devices and batterypowered applications. Key benefits and capabilities resolution motion sensing: 13bit measurement across a ±16 g range for accurate detection of subtle movements and tilt changes precise tilt measurement: at 3.9 mg per LSB, tilt angle changes of less than 1.0 degree can be detected flexible digital interfaces: 16bit two's complement output accessible via SPI (3wire or 4wire) or I2C, enabling integration with a variety of microcontrollers and sensors efficient power management: lowpower mode supports motionbased intelligent power management for threshold sensing and motion acceleration measurement with very low power consumption Attributes and performance function: 3axis accelerometer for motion and tilt sensing compatibility: supports SPI (3wire or 4wire) and I2C interfaces for broad hardware compatibility size: small and thin form factor suitable for compact devices and wearables data format: digital output in 16bit two's complement resolution and range: 13bit resolution with a ±16 g measurement range power features: optimized for ultralow power operation with a lowpower mode for motion sensing and threshold detection Use scenarios portable devices and wearables: tilt and motion sensing for orientation, activity tracking, and gesture detection in smartphones, tablets, fitness bands, and smart accessories consumer electronics: motionbased controls and tiltaware interfaces in gaming controllers, remote controls, and handheld devices robotics and embedded systems: motion detection, orientation sensing, and intelligent power management in small robots, drones, and autonomous modules What this means for you accurate motion and tilt sensing in a compact, lowpower package easy integration with standard digital interfaces (SPI or I2C) reliable performance with resolution measurements and precise tilt detection adaptable power options to optimize battery life in mobile and embedded applications