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1

Sorry, the two are very different - to make a OneWire sensor look like a PT100 sensor, you'd have to find some way to recreate the resistance in the wire that varies with temperature, which is how a PT100 works. The simplest way to do that would be to use a real PT100 sensor - emulating a PT100 sensor would be much harder and most likely introduce more error ...


2

you may want to ask this on the electronics stack exchange. but to answer this here. no, you cant replace a PT100 sensor, with a 1-wire temp sensor. PT100/1000 are analog sensors, 1 wire sensors are digital. as to convert a 1 wire, to an analog sensor, all depends on your knowledge of electronics, easy if you know a lot, hard if you dont know anything....



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