The basis of 1-Wire technology is a serial protocol using a single data line plus ground reference for communication. 1-Wire protocol uses CMOS/TTL logic and operates at a supply voltage ranging from 2.8V to 6V.
Overview of the 1-Wire BUS
1-Wire provides low-speed data, signaling, and power over a single conductor. It is similar in concept to I2C
There are two types of 1-Wire protocol:
- Dallas 1-Wire Protocol
- MaxDetect 1-Wire Protocol