I want anaWelcome to AAC.
Do you want digital or analog?
If the temperature is >=37°C, do you want it to do something?
How accurate does it need to be?
Adafruit (adafruit.com) and SparkFun (sparkfun.com) both have temperature sensors that will do that.
But I want a circuit that will work only after the temperature is less than equal to 37° . Want accurate result. Is there any solution?There is a circuit called LM35 that gives a linear voltage output with temperature, 10mV/°C over a range of -55°C to +150°C
I want analog. I want a circuit that will work only after the temperature is less than equal to 37° . Want accurate this much accurate circuit. Is there any solution?Welcome to AAC.
Do you want digital or analog?
If the temperature is >=37°C, do you want it to do something?
How accurate does it need to be?
Adafruit (adafruit.com) and SparkFun (sparkfun.com) both have temperature sensors that will do that.
I need a circuit that will glow (led) only if the temperature cross 37°.Not enough information. measuring temperature is conceptually easy, many solutions.
Given 37degC is ~ human body temp, is this sensing on contact or from a distance. How quickly do you need a reading after contact? eg<1s? how often do you need a reading, every second, or faster or slower? How accurate do you need it?+/-1degC, +/-0.1degC.
What are you measuring temperature of? air, liquid, solid?