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 ...

This project illustrates the control of NPN power transistor using PIC16F876A to further drive DC brushless fans, LEDs, and buzzers when the specified temperature was detected. An LCD screen is used ...

I've got a storeroom in a garage that has some stuff in it that is a little more temperature sensitive, and has more variability than I'd like (it also has some equipment that generates a bit of heat, ...