In my case I used the well-known BD139 transistor and a 9V battery to provide power to the fan and transistor. The LM35 temperature sensor and red led are powered with 5V from the Arduino board. As ...

This setup will let you monitor Play Station 3 temperatures and throttle the cooling fan ... room temperature. Above you can see the setup he used to display temperatures for each sensor on ...

Zener diode ZD1 is used to convert 9V into 5V DC to drive the gas sensor module. 10: Arduino Fan Speed Controller I made this project because I wanted a way to automatically control the speed of a DC ...

a pocket-sized temperature controlled iron that can be had for as little as $50 USD from the usual overseas suppliers. Whether or not you’re personally a fan of the portable irons compared to a ...

A window is nearby, so I was thinking I could duct it out and set up a fan that would exchange ... hobby board (i.e. Arduino and the related diaspora), a couple temp sensors (whether thermistors ...

It’s a fairly simple project, too: just hook an Arduino Uno up to a motion sensor and an electronic switch called a relay, then plug in your fan, and you’re good to go. If that sounds ...

Maxim Integrated Products has introduced the MAX6678, a dual temperature sensor and fan controller that offers remote temperature sensing up to 145°C and automatic adjustment of two cooling fans to ...