#include "Wire.h"

const byte I2C_SLAVE_ADDR = 0x20;
const byte I2C_SLAVE2_ADDR = 0x25;

long data = 100;
long data2 = 200;
long response = 0;

void setup()
{
   Serial.begin(115200);
   Wire.begin();
}

void loop()
{
   sendToSlave();//manda dato a saclavo 1(100) lee y se prende
   //requestToSlave();
   delay(2000);//pasan 2 seg
   sendToSlave2();//manda datos a esclavo 2 (200) lee esclavo y prende 
   delay(2000);
}

void sendToSlave()
{
   Wire.beginTransmission(I2C_SLAVE_ADDR);
   Wire.write((byte*)&data, sizeof(data));
   Wire.endTransmission();
}
void sendToSlave2()
{
   Wire.beginTransmission(I2C_SLAVE2_ADDR);
   Wire.write((byte*)&data2, sizeof(data2));
   Wire.endTransmission();
}
//void requestToSlave()
//{
//   response = 0;
//   Wire.requestFrom(I2C_SLAVE_ADDR, sizeof(response));
//
//   uint8_t index = 0;
//   byte* pointer = (byte*)&response;
//   while (Wire.available())
//   {
//      *(pointer + index) = (byte)Wire.read();
//      index++;
//   }
//
//   Serial.println(response);
//}