Thermistor is a semiconductor device made of materials whose resistance varies as a function of temperature. A thermistor can be used to compensate for temperature variation in other components of an ...

This system incorporates a thermistor and micro-heater with porous nanoforests as the sensing material, achieving an impressive 96.2% accuracy in recognizing human behaviors through respiration ...

You'll need an Arduino along with a bunch of various sensors to get the project rolling, and once it's all set up you'll have a simple, but cheap system to monitor your home.

The sensor operates within a humidity range of 60–90% relative humidity (RH) and boasts a sensitivity of 0.56 pF/%RH.