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Thread: Help on temperature sensor
www.piclist.com/techref/io/sensors.htm?key=temperature
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face BY : Richard Prosser email (remove spam text)



National Semis produce a range of sensors of which the LM335 is an example
(to give you a starting point).

It depends on your accuracy requirement whether or not you need to calibrate
them

The LM335 produces 10mV per degree K but other versions will produce degrees
Rankine or F I think.

Calibration is a single pot so isn't too hard if you've got a known, stable
temperature.

I think their cheapest sensor (LM85 ?? - calibrated in degrees C) is about
$NZ0.85


Richard P

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See also: www.piclist.com/techref/io/sensors.htm?key=temperature
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