main.cpp

#include <Arduino.h>
#include <Wire.h>

uint8_t i2cAddress = 0x22;
uint8_t intPin = 3;
bool interruptFlag = false;

void isr1() 
{
  interruptFlag = true;
}

void writeRegister(uint8_t reg, uint8_t value) {
    Wire.beginTransmission(i2cAddress);
    Wire.write(reg);
    Wire.write(value);
    Wire.endTransmission();
}

void setup() 
{
  Serial.begin(115200);
  delay(5000);
  Wire.begin(0, 1);
  pinMode(intPin, INPUT);
  attachInterrupt(digitalPinToInterrupt(intPin), isr1, RISING);

  // Set up sensor configurations
  writeRegister(0x06, 0x26);  // Z Threshold
  writeRegister(0x08, 0x64);  // Enable Interrupt, 10us latch, through int pin
  writeRegister(0x02, 0x46);  // Z-Channel Only and Sleep 50ms
  writeRegister(0x01, 0x23);  // Operating Mode W&S
}

void loop()
{
  if (interruptFlag == true)
  {
    interruptFlag = false;
    Serial.println("Threshold Reached!");
    writeRegister(0x01, 0x23);
  }
}