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ADXL345 Tripple Axis Accelerometer Board

ADXL345 3-Axis Digital Acceleration of Gravity Tilt Module GY- 291

ADXL345 Tripple Axis Accelerometer Board

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Product SKU: KG022

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₹ 130 ~~₹ 199~~

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Specification

Description

The ADXL345 Tripple Axis Accelerometer Board is well suited for mobile device applications. It measures the static acceleration of gravity in tilt-sensing applications, as well as dynamic acceleration resulting from motion or shock. Its high resolution (4 mg/LSB) enables measurement of inclination changes less than 1.0°. This Low power modes enable intelligent motion-based power management with threshold sensing and active acceleration measurement at extremely low power dissipation.

ADXL345 Tripple Axis Accelerometer Board is a small, thin, low-power,3-axis accelerometer with a high resolution (13-bit) measurement at up to ±16 g. Digital output data is formatted as a 16-bit two’s complement and is accessible through either an SPI (3- or 4-wire) or I2C digital interface. These functions can be mapped to one of two interrupt output pins. An integrated, patent-pending 32-level first-in, first-out (FIFO) buffer can be used to store data to minimize host processor intervention.

The device offers a variety of special detection features.
Active and Inactive Detection Detects the presence or absence of motion by comparing the acceleration on any axis with a user-set threshold.
Percussion detection function can detect any direction of single vibration and double vibration action.
It can measure changes in the inclination angle of about 0.25°.

Pinout Diagram

Pin Configuration

GND: Ground Pin
VCC: Power Supply pin (3V to 6V)
CS: Chip Select Pin
INT1: Interrupt 1 Output
INT2: Interrupt 2 Output
SDO: Serial Data Output
SDA: Serial Data Input & Output
SDL: Serial Communication Clock

Technical Details

Input Supply Voltage (VDC) : 3.3 ~ 5
Interface Type: I²C, SPI
Sensing Range : Â±2g, Â±4g, Â±8g, Â±16g
X-Axis Sensitivity: 28.6 LSB/g
Y-Axis Sensitivity: 31.2 LSB/g
Z-Axis Sensitivity: 34.5 LSB/g

Physical Attributes

Length * Width * Height in mm : 20.5 * 15.5 * 3.5
Weight in gm : 4

Integration with Arduino

Sample Code

Integration with Raspberry Pi

Sample Code

Applications :

Pointing devices.
Handsets.
Medical Instrumentation.
Gaming.
Industrial instrumentation.
Personal navigation devices.
Hard disk drive (HDD) protection.
Fitness equipment.
defense and aerospace.

Additional Details

Ultra-Low Power: 40µA in measurement mode, 0.1µA in standby@ 2.5V.
Free-Fall Detection.
Tap/Double Tap Detection.
Flexible interrupt modes mappable to either interrupt pin Measurement ranges selectable via serial command Bandwidth selectable via serial command
Wide temperature range (−40°C to +85°C).
10,000 g shock survival.
Support 5V/3.3V voltage input, onboard RT9161 power chip, lower pressure drop faster than 1117, the faster load speed of response, very suitable for high-noise power supply environment.
User-selectable resolution
1. Fixed 10-bit resolution.
2. Full resolution, where resolution increases with G range, up to 13-bit resolution at ±16 g (maintaining 4 mg/LSB scale factor in all G ranges).

Product Video

Documentation

a- Datasheet

Great for Klipper/Raspberry Pi

If you don't know what Klipper is, it is a firmware for 3D printers. These are used on the print head and slinger style beds for calibrating acceleration to eliminate ringing/ghosting due to resonant frequencies of the printer chassis.I have not confirmed the other two from my pack of 3 work but at least the first one I tried works fine. From other reviews of all of these type of sensors, I figured it's a good thing to get a pack in case you end up with a dud. Unfortunately it is a bit wasteful, but at least I have backups in case they are needed for other projects.

Klipper

Worked easily and as expected for Klipper auto resonance tuning. 3 printers done for cheap when compared to cost of 1 board from Adafruit costing around 20$ each or Sparkfun

works fine

these worked OK. some of these type of modules do not read properly on all axis. all three of these worked fine for me with about 1.0G static on each axis, and a variation of 1G when tilting. so if you are having problems with this type of module it may not be your code, try a few different ones and check for stuck axis.