Reading iButton address

Each iButton device has a globally unique and unalterable digital address. The guaranteed unique 64-bit serial number can be used as a key or identifier for each iButton device.

iButton_64_Bit_Serial_Number_dubaigps.com

The address can be seen on the face of the iButton as shown above. It has three parts which are joined together to form the 64-bit serial number.

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