1-Wire or One-Wire is a method of transmitting information that only needs one data line. The wide usage of integrated 1-Wire components such as temperature sensors or small and rugged memories, the protocol is often employed in connection with measuring data and for identification of objects by what is called iButtons.
iButtons are small integrated circuits, embedded in a rugged stainless steel enclosure. The name
iButton originates in its similarity to button cell batteries. iButtons are available in different types, amongst others with the function as a data logger or as a universal memory.
The degree of protection for iButtons is stated with IP56. However, what is behind this IP Code and what does it mean for practical use? The IP Code is defined in DIN EN 60529. This standard specifies definitions for degrees of protection provided by enclosures of electrical equipment.