I made this project because I wanted a way to automatically control the speed of a DC fan according ... the PWM pin on the Arduino board. I used an LCD shield to display the current temperature and ...

To address this issue, he put together a simple but very elegant temperature controlled fan to vent the enclosure when the internal conditions go above the optimal temperature. [Steve] picked up ...

In this project, we are going to build something very simple project, a temperature controlled relay that is used to turn on a dc fan. You can actually change the DC Fan to other electrical devices ...