Arduino

Arduino is an open-source physical computing platform designed to make experimenting with electronics more fun and intuitive. Arduino has its own unique, simplified programming language, a vast support network, and thousands of potential uses, making it the perfect platform for both beginner and advanced DIY enthusiasts.

Circuit-01: LED Blink Coding

Original Sketch

The LED is flashing once per second.

Manipulated Sketch

changed the delay

The light strobes roughly once every 16 milliseconds

Circuit-02: Potentiometer

The video shows the adjustment of the dial to increase the speed in which the the LED flashes.

A potentiometer is a rotatable voltage output controller for a circuit to adjust the frequency of a specific action, such as blinking of a LED or movement of a servo, and volume of an audio output. In this specific circuit it is used to adjust the speed / frequency of a blinking LED by pulling or pushing power into the positive.