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INTERFACING THE DS18X20/DS1822 1-WIRE TEMPERATURE SENSOR IN A MICRO-CONTROLLER ENVIRONMENT。 There are several methods available for interfacing 1-WireTM devices such as the DS18B20, DS18S20 or DS1822 to a microcontroller. These methods range from simple software solutions, to using a Serial Interface chip such as the DS2480, to incorporating Dallas Semiconductor’s VHDL 1-Wire TM Master Controller in a custom ASIC. This article introduces the user to the simplest possible software solution for basic 1-WireTM communication between a microcontroller and any number of DS18x20 or DS1822 temperature sensors.