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 ...

A simple Arduino project that uses a temperature sensor to control two fans to help cool down a laptop on a laptop stand. Power is supplied by any 5V source and a mosfet switch is used to switch the ...

Looking for a simple circuit to control the light intensity of Light Emitting Diodes (LEDs) or similar lighting sources? Here is an Arduino based circuit with three independent pulse width modulated ...