An automatic toll gate system using Arduino revolutionises traditional toll collection by eliminating manual intervention.

In our daily lives, we use thermometers on various occasions and for various purposes, from medical needs to repair and diagnostic purposes. As you know there are different types of thermometers, and ...

Basic diagram of the Arduino Circuitry. Wires with color represent positive current from the Arduino to the LEDs, black wires represent connection to ground. Used 330 ohm resistors. Source is 5 volts.

If you want to know the acidity (or alkalinity) level of your pool or aquarium water, you need a pH meter. In this article, you'll find a simple but effective solution based on off-the-shelf ...