1-Wire

1-Wire是Maxim子公司的專利技術，仅用單一信號線就可像I²C、SPI一樣，傳輸時鐘（clock）又傳輸數據（data），并且數據傳輸是雙向的。1-Wire使用較低的數據傳輸速率（16.3 kbit/s），通常是用來溝通小型设备，如數位溫度計。1-Wire有兩種速率：標準模式16kbps，驅動模式142kbps。

例如，智慧鈕扣（iButton）产品就是基於1-Wire設計。iButton可存儲個人資訊，如身份證號、病歷表等。

参考文献

外部連結 
1-Wire and iButton
1-Wire Weather Station Construction (Book)
1-Wire Weather Instrument Kit
OWFS - 1-wire filesystem for Linux
OWFS - 1-wire filesystem for Linux (Old Site)
OPNODE project (opn-one : 1-Wire home automation controller)
Guides to working with 1-Wire, for programmers and engineers
jHomeNet - 1-Wire home automation program
1-Wire ON/OFF temperature controller with RS-232C communications interface to a personal computer 

串行总线