#include <Wire.h>

int childAdd = 7;

void setup() {
  // put your setup code here, to run once:
  Wire.begin();
  Serial.begin(115200);

  pinMode(3, OUTPUT);
  //pinMode(0, INPUT);
}

void loop() {
  Wire.requestFrom(childAdd, 1);  //Requst 1 byte from child adress 9
  Serial.println("requesting");
  while (Wire.available()) {
    int childValue = Wire.read();
    if (childValue == 1) {
      digitalWrite(3, HIGH);
    } else {
      digitalWrite(3, LOW);
    }
  }
  delay(10);
  // Wire.beginTransmission(childAdd);
  // Wire.write(digitalRead(0));
  // Wire.endTransmission();
  // delay(10);
}