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Tag Archives: DS18S20

DS18B20 issues

PROBLEM DESCRIPTION I’m using the DS18S20 and DS18B20 in a energy control system. The 1-wire temperature sensors is connected on the same 1-wire bus. Just these two sensors are connected to the bus. The 1-wire is connected to a microcontroller i/o port. To pull down the 1-wire bus, an open drain pulldown transistor and a 1k resistor to +5V are …

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