Example Code for Raspberry Pi - GPIO HAT I2C Validation

Hardware Preparation

• DFR0918 Raspberry Pi 4B GPIO Terminal Block HAT x 1
• SEN0405 Fermion: LIS2DW12 Triple Axis Accelerometer x 1
• DFR0619 Raspberry Pi 4 Model B x 1

Software Preparation

• Download Arduino IDE: Click to download Arduino IDE
• Download the DFRobot_LIS2DW12 Library: DFRobot_LIS2DW12 Library
• About how to install the library?

Wiring Diagram

Sample Code

#include <DFRobot_LIS2DW12.h>

DFRobot_LIS2DW12_I2C acce;

void setup(void){

  Serial.begin(9600);
  while(!acce.begin()){
     Serial.println("Communication failed, check the connection and I2C address setting when using I2C communication.");
     delay(1000);
  }
  Serial.print("chip id : ");
  Serial.println(acce.getID(),HEX);
  acce.softReset();
  acce.continRefresh(true);
  acce.setDataRate(DFRobot_LIS2DW12::eRate_50hz);
  acce.setRange(DFRobot_LIS2DW12::e2_g);
  acce.setFilterPath(DFRobot_LIS2DW12::eLPF);
  acce.setFilterBandwidth(DFRobot_LIS2DW12::eRateDiv_4);
  acce.setPowerMode(DFRobot_LIS2DW12::eContLowPwrLowNoise2_14bit);
  Serial.print("Acceleration:\n");
  delay(100);
}

void loop(void){
    Serial.print("x: ");
    Serial.print(acce.readAccX());
    Serial.print(" mg \ty: ");
    Serial.print(acce.readAccY());
    Serial.print(" mg \tz: ");
    Serial.print(acce.readAccZ());
    Serial.println(" mg");
    delay(300);
}

Result