Help me please...

in two arduino I2C communication, how to give the identity of each sensor? I wear 4 pieces analog sensors. I am grateful if anyone help me. thank you

Every thing you need for I2C comms is here:-

Look for the code for the I2C scanner.


The master knows which device it asked for data from. Why is it necessary for the slave to identify itself? Even if it is, why is that even remotely hard?