Similarly to the NeoPixels, you will need a library to use the accelerometer. This time, you will be downloading a package from DFRobot:
and follow the instruction here to install the library.
The following code shows you how to get the accelerometer to detect motion. Open the Serial Monitor to see the acceleration reading in the x, y and z directions.
#include <Wire.h>
#include <DFRobot_LIS2DH12.h>
DFRobot_LIS2DH12 LIS; //Accelerometer
void setup() {
Wire.begin();
Serial.begin(115200);
while (!Serial);
delay(100);
// Set measurement range
// Ga: LIS2DH12_RANGE_2GA
// Ga: LIS2DH12_RANGE_4GA
// Ga: LIS2DH12_RANGE_8GA
// Ga: LIS2DH12_RANGE_16GA
while (LIS.init(LIS2DH12_RANGE_16GA) == -1) { //Equipment connection exception or I2C address error
Serial.println("No I2C devices found");
delay(1000);
}
}
void loop() {
acceleration();
}
/*!
@brief Print the position result.
*/
void acceleration(void)
{
int16_t x, y, z;
delay(100);
LIS.readXYZ(x, y, z);
LIS.mgScale(x, y, z);
Serial.print("Acceleration x: "); //print acceleration
Serial.print(x);
Serial.print(" mg \ty: ");
Serial.print(y);
Serial.print(" mg \tz: ");
Serial.print(z);
Serial.println(" mg");
}
You should see something like this:
