I made this project because I wanted a way to automatically control the speed of a DC fan according to the temperature read by a LM35 sensor. I had a few problems with the PWM part mainly because the ...

For example, the common LM34 and LM35 chips exploit this property ... However, there are other ways non-temperature sensor ICs can measure temperature. It turns out, almost all of our circuits ...

The build uses Panasonic’s cheap “Grid-EYE” infrared array as the thermal sensor, in this case, a model with an 8×8 array of thermopiles. It’s not going to get you any fancy images ...