lm35 - Circuitos electrónicos
It sounds rather mysterious: a switch that is controlled by its ambient temperature. All without the touch of a human hand, except for when you're building this sort of electronic thermostat. There are a lot of handy uses for a thermally controlled switch. If the temperature inside your PC gets too high sometimes, the circuit can switch on an extra fan. You can also use to switch on an electric heater automatically if the room temperature is too low. There are innumerable potential applications .......
http://www.circuit-finder.com/categories/sensor/temperature-sensor/905/temperature-controlled-switch
This circuit will turn on a 12v DC powered cooling fan when the air temperature reaches a certain high temperature and will keep the fan turned on until the temperature drops below a second lower level. Both the high and low temperatures are both adjustable. For ease of use, the temperatures are proportional to either degree F or degrees C, using an accurate electronic sensor........
http://www.discovercircuits.com/H-Corner/12V Cooling-Fan-Thermostat.htm
https://automwiring.blogspot.com/2013/04/2-line-intercom-cum-telephone-line.html
https://giltesa.com/2012/08/31/sensores-de-temperatura-para-arduino
https://circuitos-de-electronica.blogspot.com/2007/10/temperature-to-frequency-converter.html
http://www.learningaboutelectronics.com/Articles/LM335-temperature-sensor-circuit.php
https://circuits-audio.blogspot.com/2011/06/5-tube-stereo-amplifier.html
https://easycircuit012.blogspot.com/2012/11/digital-remote-thermometer-circuit.html
https://elightcir.blogspot.com/2013/04/make-this-temperature-indicator-circuit.html
http://midas.herts.ac.uk/Datasheets/Sensors & Transducers
https://widiswitt.blogspot.com/2013/04/current-loop-transmitter-circuit-for.html
https://wirringremote.blogspot.com/2013/03/how-to-make-car-led-chasing-tail-light.html
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