1-Wire — Википедия
https://ru.wikipedia.org/wiki/1-Wire
1-Wire — двунаправленная шина связи для устройств с низкоскоростной передачей данных (обычно 15,4 Кбит/с, максимум 125 Кбит/с в режиме overdrive)...
1-Wire - Wikipedia
https://en.wikipedia.org/wiki/1-Wire
1-Wire is a device communications bus system designed by Dallas Semiconductor Corp. that provides low-speed (16.3 kbit/s) data, signaling, and power over a single conductor. 1-Wire is similar in concept to I²C, but with lower data rates and longer range.
Guidelines for Reliable Long Line 1-Wire Networks
https://www.maximintegrated.com/en/design/technical-documents/tutorials/1/148.html
1-Wire was also a way to add auxiliary memory on a single microprocessor port pin. Methods were later developed to extend the 1-Wire protocol to network applications well beyond the size of a circuit board.