LIS3DH Triple-Axis Accelerometer

LIS3DH Triple-Axis Accelerometer Sensor Module

The LIS3DH is a low power triple-axis accelerometer. It is very popular and cheap and grants almost every ‘extra’ you might look for in an accelerometer:

• Three axis sensing, 10-bit precision
• ±2g/±4g/±8g/±16g selectable scaling
• Either I2C (with 2 possible addresses) and SPI interface options
• Interrupt output
• Multiple data rate options: from 1 Hz to 5Khz
• As low as 2uA current draw (the chip itself, not any supporting circuitry included)
• Tap, Double-tap, orientation & freefall detection.
• 3 additional ADC inputs to be read over I2C

This LIS3DH sensor communicates over I2C or SPI (both supported by this library code) so it can be shared on the same I2C bus with a lot of other sensors. An address selection pin allows two accelerometers share an I2C bus.

Adafruit produced a breakout board for this interesting product, to get you going fast. As it is a 3V sensor, a low-dropout 3.3V regulator and level shifting circuitry have been added on board. That makes it perfectly safe to use with logic and 3V or 5V power. It comes fully assembled and tested. It comes with a bit of 0.1″ standard header in the event that you want to use it either with a breadboard or with a perfboard. For an easy attachment, there are two 2.5mm (0.1″) mounting holes.

Consult the tutorial of the LIS3DH Triple-Axis Accelerometer for all sorts of details, assembly, pinouts, wiring, and more.

Triple-Axis Accelerometer technical details are:

• LIS3DH Datasheet
• LIS3DH App note
• Schematic
• Dimensions: 20.62mm x 20.32mm x 2.6mm / 0.8″ x 0.8″ x 0.1″
• Weight: 1.5g

Adafruit name: LIS3DH Triple-Axis Accelerometer (+-2g/4g/8g/16g)