attiny 85 I²C

#define ADDRESS 0x10

byte pointer = 0;

long temp = 0;
long pres = 0;
long bat = 0;

long samples = 0;

byte i2cdata[10];

void setup()
{
  TinyWireS.begin(ADDRESS);
  TinyWireS.onRequest(onRequest);
  TinyWireS.onReceive(onReceive);
  ADMUX |= _BV(REFS2) | _BV(REFS1);
  ADMUX &= ~_BV(REFS0);
}

void loop()
{
  bat += analogRead(A3);
  TinyWireS_stop_check();
  pres += analogRead(A2);
  TinyWireS_stop_check();
  samples++;
  tws_delay(100);
}

void onRequest()
{
  TinyWireS.send(i2cdata[pointer]);
  pointer++;
}

void onReceive(byte c)
{
  byte x = TinyWireS.receive();
  if(x == 255)
  {
      temp = 0;
      pres = 0;
      bat = 0;

      samples = 0;
  }
  else if(x == 254)
  {
    temp /= samples;
    pres /= samples;
    i2cdata[0] = *(&temp);
    i2cdata[1] = *(&temp + 1);
    i2cdata[2] = *(&temp + 2);
    i2cdata[3] = *(&temp + 3);
    pointer = 0;
  }
}