Why buy one when you can build it cheaper?

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 ...

HomeKit has changed how I interact with many of the rooms in my house. While lighting and cameras tend to have the spotlight for most people as they can easily see the impact, environment monitoring ...

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 ...