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2. AVR318: Dallas 1-Wire® Master — Application Note
Dallas 1-Wire® devices are unique in that only one wire in addition to ground is needed to communicate with a device. Power supply and communications are handled through only one connection. To communicate with a Dallas 1-Wire device, only one general purpose I/O pin is needed. This application note shows how a 1-Wire master can be implemented on an AVR, either in software only, or utilizing the U(S)ART module. 21 pages.
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