I'm looking to put together a python based one-wire application functioning on both linux and windows at the very least.
Since i'm starting from the lowest of the low I am keen to know quite how the various one-wire interfaces (RS-232, USB) behave when all the bus wires are shorted or immersed...
Thanks for the reply,
so to sum up:
Channel 0 is the Power supply voltage
Channel 1 is the humidity sensor voltage
Channel 2 is the Solar sensor.
What kind of full range deflection should you get on the solar sensor?
Of the three voltages displayed in the dallas OneWireViewer corresponds to the solar output?
The Oneviewer app quotes a humidity reading for the 2438 how does it know this?
Surely it is only measuring the voltage at the Vad pin? I have read the Dallas App note...
I can think of earth loops as one problem this might allievate, but it might have issues with UK building control if wiring outside the equipotential zone (for that read house) is not bonded properly.
Be interested to know the answer from some authorative source.
If you accept the limitations...
I hve just received a bunch of 18S20's for temperature measurement.
I assume that the temperature measuring element is theramlly linked to the Ground Pin so if I wish to measure a pipe temperature I need to make sure there is good themal contact between the Ground pin and the pipe.
Is this...
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