link:https://pan.baidu.com/s/1urz485wfijKvuSYhr0fNHg Extraction code:muxs
Name: ADXL345 module (three-axis gravitational acceleration)
Model: GY-291
Use chip: ADXL345
Power supply: 3-5v
Communication method: IIC/SPI communication protocol
Measuring range: ±2g±16g

Provide schematic diagrams, related data manuals and reference documents
Provide 51, AVR, Arduino microcontroller test code

3 axis, ± 2g/ ± 4g/ ± 8g/ ± 16g
Digital acceleration module
Overview

The ADXL345 is a small, slim, low-power three-axis accelerometer that can measure accelerations up to ±16 g with high resolution (13 bits). Number of digital outputs
The data is in 16-bit twos complement format and can be accessed through SPI (3-wire or 4-wire) or I2C digital interface. ADXL345 is very suitable for mobile device applications. It can measure static acceleration of gravity in tilt detection applications, as well as dynamic acceleration caused by motion or impact. It has a high resolution (4 mg/LSB) and can measure approximately 0.25° inclination angle changes. The use of digital output accelerometers such as ADXL345 eliminates the need for analog-to-digital conversion, which can save system cost and circuit board area. In addition,

ADXL345 is a small and thin ultra-low power 3-axis accelerometer with high resolution (13 bits) and a measurement range of ± 16g. The digital output data is in 16-bit twos complement format, which can be accessed through SPI (3-wire or 4-wire) or I2C digital interface. ADXL345 is very suitable for mobile device applications. It can measure static acceleration of gravity in tilt detection applications, as well as dynamic acceleration caused by motion or impact. Its high resolution (3.9mg/LSB) can measure less than 1.0° tilt angle changes.
The device provides a variety of special detection functions. The activity and inactivity detection function compares the acceleration on any axis with the threshold set by the user to detect whether there is movement. The tap detection function can detect single vibration and double vibration in any direction. The free fall detection function can detect whether the device is falling. These functions can be independently mapped to one of the two interrupt output pins. The patent-pending integrated memory management system uses a 32-level first-in-first-out (FIFO) buffer that can be used to store data, thereby minimizing the host processor load and reducing overall system power consumption.
Low power consumption mode supports smart power management based on sports,
Threshold sensing and motion acceleration measurement for power consumption.
ADXL345 adopts 3 mm × 5 mm × 1 mm, 14-pin small ultra-thin plastic package.