Adxl345 i2c - code problem

Projects Programming
1

i want to get data X Y Z from adxl345 using i2c and also get interrupt via INT_1 of adxl345 if there is activity

it works to get xyz, but i cant get the interrupt when i move sensor.
here is code

#include <Wire.h>

const int ADXL345_ADDRESS = 0x53;  // I2C address of ADXL345
const int INT1_PIN = 23;          // Interrupt pin connected to ADXL345 INT1

volatile boolean adxl345_new_motion = false;

void setup() {
  Serial.begin(9600);
  Wire.begin();

  // Configure ADXL345
  Wire.beginTransmission(ADXL345_ADDRESS);
  Wire.write(0x2D);  // Power control register
  Wire.write(0x08);  // Set to normal operation mode
  Wire.endTransmission();

  Wire.beginTransmission(ADXL345_ADDRESS);
  Wire.write(0x2C);  // Data rate register
  Wire.write(0x09);  // Set data rate to 0.78 Hz
  Wire.endTransmission();

  Wire.beginTransmission(ADXL345_ADDRESS);
  Wire.write(0x31);  // Data format register
  Wire.write(0x0B);  // Full resolution, +/- 4G range
  Wire.endTransmission();

  Wire.beginTransmission(ADXL345_ADDRESS);
  Wire.write(0x27);  // Activity threshold register
  Wire.write(0x1E);  // Set activity threshold (adjust as needed)
  Wire.endTransmission();

  Wire.beginTransmission(ADXL345_ADDRESS);
  Wire.write(0x2E);  // Interrupt enable register
  Wire.write(0x10);  // Enable activity interrupt on INT1
  Wire.endTransmission();

  pinMode(INT1_PIN, INPUT);
  attachInterrupt(digitalPinToInterrupt(INT1_PIN), adxl345_new_motionISR, RISING);
}

void loop() {
  // Get X, Y, Z readings even without interrupt
  int16_t x, y, z;

  Wire.beginTransmission(ADXL345_ADDRESS);
  Wire.write(0x32);  // Start reading at data register
  Wire.endTransmission();
  Wire.requestFrom(ADXL345_ADDRESS, 6);
  if (Wire.available() >= 6) {  // Check for available data before reading
    x = Wire.read() | Wire.read() << 8;
    y = Wire.read() | Wire.read() << 8;
    z = Wire.read() | Wire.read() << 8;

    Serial.print("X: ");
    Serial.print(x);
    Serial.print(", Y: ");
    Serial.print(y);
    Serial.print(", Z: ");
    Serial.println(z);
  } else {
    Serial.println("No data available from ADXL345");
  }

  // Check for interrupt and handle it
  if (adxl345_new_motion) {
    // You can add specific actions here when activity is detected
    Serial.println("Activity detected!");
    adxl345_new_motion = false;

    // Clear any pending interrupts
    Wire.beginTransmission(ADXL345_ADDRESS);
    Wire.write(0x30);  // Interrupt status register
    Wire.endTransmission();
    Wire.requestFrom(ADXL345_ADDRESS, 1);
    Wire.read();
  }

  delay(1000);
}

void adxl345_new_motionISR() {
  adxl345_new_motion = true;
}

if i use this library:
ADXL345_WE/src/ADXL345_WE.h at main · wollewald/ADXL345_WE · GitHub
i set settings like this but idk why in my code doesnt work if i try not to use this lib

  adxl.setDataRate(ADXL345_DATA_RATE_0_78);  //HZ:  _3200  _1600  _800  _400  _200  _100  _50  _25  _12_5  _6_25  _3_13  _1_56  _0_78  _0_39  _0_20  _0_10
  adxl.setRange(ADXL345_RANGE_4G);  //ADXL345_RANGE_16G   ADXL345_RANGE_8G   ADXL345_RANGE_4G   ADXL345_RANGE_2G
  adxl.setActivityParameters(ADXL345_AC_MODE, ADXL345_XY0, 0.3);  //AC_MODE nese differenca ndermjet infove qe vin me e madhe se shembull 0.3g , kurse DC_mode nese x ose y kalon 0.5g
  adxl.setInterrupt(ADXL345_ACTIVITY, INT_PIN_1);
  adxl.readAndClearInterrupts();
  if (adxl345_new_motion == true) { 

    String axes = adxl.getActTapStatusAsString();
    byte intSource = adxl.readAndClearInterrupts();

    if (adxl.checkInterrupt(intSource, ADXL345_ACTIVITY)) {
      Serial.print("Activity at: ");
      Serial.println(axes);
      i++;
    }


    delay(1000);
    adxl.readAndClearInterrupts();
    adxl345_new_motion = false;
  }
}
2

Which Arduino board do yo use ?

3

please make sure gpio23 is available for interrupt.
www.arduino.cc/reference/en/language/functions/external-interrupts/attachinterrupt/