On Thu, Dec 4, 2014 at 12:38 PM, Jerry Biehler <[email protected]> wrote: > You could also use a resistor thermally bonded to a thermistor or a Dallas > 1wire sensor. You apply voltage to the resistor to make it a little heater > and when the temp rises significantly on the sensor you know it is out of > water. You don't need much heat, just enough above ambient to notice a > difference.
What happens when the house thermostat set at 80 (ok let's say 70) goes down to 55 at night? _______________________________________________ dorkbotpdx-blabber mailing list [email protected] http://music.columbia.edu/mailman/listinfo/dorkbotpdx-blabber
