This is an easy tutorial showing how you can control the brightness of an LED or adjust the speed of a DC fan using Arduino Board, a small BC547 transistor and a potentiometer. In my example the whole ...

LED Brightness Control ... from any browser: The Arduino UNO will act as a webserver and HTML web page will be hosted on a PC or Laptop. Before starting the coding and development, the Node.js has to ...

This library provides a GAMMA lookup class. It is typical used to change the intensity / brightness of a LED to match the human eye. When a LED is given 50% PWM it looks far brighter for the eye. This ...