LIS3DSH accelerometer sensor and Linkit One example

In this example we connect a LIS3DSH sensor to a Linkit One. Lets look at the sensor first of all

The LIS3DSH is an ultra-low-power high-performance three-axis linear accelerometer belonging to the “nano” family with an embedded state machine that can be programmed to implement autonomous applications.

The LIS3DSH has dynamically selectable full scales of ±2g/±4g/±6g/±8g/±16g and is capable of measuring accelerations with output data rates from 3.125 Hz to 1.6 kHz. The self-test capability allows the user to check the functioning of the sensor in the final application. The device can be configured to generate interrupt signals activated by user-defined motion patterns.

The LIS3DSH has an integrated first-in, first-out (FIFO) buffer allowing the user to store data in order to limit intervention by the host processor. The LIS3DSH is available in a small thin plastic land grid array package (LGA) and is guaranteed to operate over an extended temperature range from -40 °C to +85 °C.

Key Features

• Wide supply voltage, 1.71 V to 3.6 V
• Independent IOs supply (1.8 V) and supply voltage compatible
• Ultra-low power consumption
• ±2g/±4g/±6g/±8g/±16g dynamically selectable full scale
• I²C/SPI digital output interface
• 16-bit data output
• Programmable embedded state machines
• Embedded temperature sensor
• Embedded self-test
• Embedded FIFO
• 10000 g high shock survivability

Parts List

Connection

An easy device to connect – remember its 3.3v

Code

You need to download and install the https://github.com/yazug/LIS3DSH library

[codesyntax lang=”cpp”]

#include <Wire.h>
#include <LIS3DSH.h>

LIS3DSH accel;

void setup() 
{
  Serial.begin(9600);
  Wire.begin();
  accel.enableDefault();
}

void loop() 
{
  int16_t x, y, z;
  int8_t temperature;

  accel.readAccel(&x, &y, &z);
  accel.readTemperature(&temperature);

  Serial.print("Accel ");
  Serial.print("X: ");
  Serial.print(x);
  Serial.print(" Y: ");
  Serial.print(y);
  Serial.print(" Z: ");
  Serial.print(z);
  Serial.print(" T: ");
  Serial.println(temperature);

  delay(100);
}

[/codesyntax]

Output

Open the serial monitor and you should see something like this – move the module around

Accel X: -383 Y: 674 Z: -12240 T: 28
Accel X: 3642 Y: 12416 Z: 14535 T: 28
Accel X: 20419 Y: 18191 Z: -23659 T: 28
Accel X: 20252 Y: 18191 Z: -23659 T: 28
Accel X: -9557 Y: -6184 Z: 15569 T: 29
Accel X: 30051 Y: 4745 Z: 9674 T: 28
Accel X: 8030 Y: 20493 Z: 7677 T: 28
Accel X: 32760 Y: 22656 Z: 3626 T: 28
Accel X: 32540 Y: 22656 Z: 3626 T: 28
Accel X: 26287 Y: 20544 Z: 5130 T: 28
Accel X: 26140 Y: 20544 Z: 5130 T: 28

Link