The project illustrates the control of a PC fan speed and using an Arduino microcontroller to read a LM35 temperature sensor. The use of an optocoupler is covered along with Pulse Width Modulation ...

Arduino enthusiasts looking for a little inspiration for their next Arduino project may be interested in this Arduino music machine which is being created and uses 7 lasers and 42 fans to create very ...

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 ...