#include <Wire.h>

void setup() { Wire.begin(); // Join I2C bus (address is optional for controller device)
 Serial.begin(9600); // Start serial for output }

void loop() { Wire.requestFrom(2, 6); // Request 6 bytes from slave
device number two

    // Slave may send less than requested
    while(Wire.available()) {
        char c = Wire.read();    // Receive a byte as character
        Serial.print(c);         // Print the character
    }

        delay(500);
    }