One Wire

From Wiki

Contents 1 One Wire 1.1 Devices 1.2 Wire Format 1.3 Project Example 1.4 One Wire Source

One Wire

Dallas Semiconductor makes an array of devices using their "One Wire" (which is actually 2 or 3 wires) protocol. These devices are neat for simple data collection via AVRs.

Devices

Temperature Sensors and Temperature Switches
4-Channel A to D Converter
Digital Potentiometers
Memory: EPROM, SRAM, EEPROM, ROM, NV SRAM
Timekeeping & Real-Time Clocks
Battery Protectors, Selectors and Monitors

Wire Format

Project Example

Temperature Logger

One Wire Source

AVR One Wire Implementation