GY521_interrupt.ino

#include <MPU6050.h>

const uint8_t MPU_addr=0x68;  // I2C address of the MPU-6050

MPU6050 testUnit(MPU_addr);

const byte interruptPin = D7;
const uint8_t threshold = 20;
const uint8_t duration = 10;

void setup() {
  Wire.begin();
  Serial.begin(115200);
  Serial.println("I'm Awake!");
  Serial.print("Motion detect Status : "); Serial.println(testUnit.getMotionStatus(),BIN);
  setupMotionInt();

  testUnit.setInterruptLatch(0);
  testUnit.setInterruptLatchClear(0);
  testUnit.setInterruptDrive(0);
  testUnit.setInterruptMode(1);
  
  Serial.println(testUnit.getInterruptMode()); 
  Serial.println(testUnit.getInterruptDrive());
  Serial.println(testUnit.getInterruptLatch());
  Serial.println(testUnit.getInterruptLatchClear());
  
  Serial.println("Going to sleep. . .");
  ESP.deepSleep(0);
}

void loop() {
  
 
}

void setupMotionInt(){

   testUnit.initialize();
  Serial.println(testUnit.testConnection());

  // Ensure the accelerometer is running
  testUnit.setSleepEnabled(false);
  testUnit.setWakeCycleEnabled(false);
  testUnit.setStandbyXAccelEnabled(false);
  testUnit.setStandbyYAccelEnabled(false);
  testUnit.setStandbyZAccelEnabled(false);

  //Set the accelerometer HPF to reset settings
  testUnit.setDHPFMode(MPU6050_DHPF_RESET);

  //Set the accelerometer LPF to 256Hz Bandwidth
  testUnit.setDLPFMode(MPU6050_DLPF_BW_256);

  //Enable the motion interrupt
  testUnit.setIntEnabled(0b00000000);
  testUnit.setIntMotionEnabled(true);

  //Set the motion detection duration
  testUnit.setMotionDetectionDuration(duration); //Duration in ms

  //Set the motion detection threshold
  testUnit.setMotionDetectionThreshold(threshold); // Threshold in 2mg

  //1 ms delay
  delay(1);

  //Set the accelerometer HPF to HOLD settings
  testUnit.setDHPFMode(MPU6050_DHPF_HOLD);

  // Set the wakeup frequency
  testUnit.setWakeFrequency(MPU6050_WAKE_FREQ_5);
  testUnit.setStandbyXGyroEnabled(true);
  testUnit.setStandbyYGyroEnabled(true);
  testUnit.setStandbyZGyroEnabled(true);

  // Enable cycle mode
  testUnit.setWakeCycleEnabled(true);

 
  
  
}