Electronic Projects for the Raspberry Pi by Segaran Seggy

Author:Segaran, Seggy
Language: eng
Format: epub
Publisher: Ohm Books
Published: 2016-12-11T00:00:00+00:00

The Python Code for all the project can be found at http://www.sf-innovations.co.uk/projects.html.

Project 4: Driving a tri-colour LED

In this project we are going to drive a tri-colour Red/Green/Blue (RGB) LED and control the brightness of each of the colours from the keyboard. By mixing these colours we should be able to get a wide range of shades.

The RGB LED that we use in this project is a common anode one. What this means is that the anode (+ve) goes up to the supply voltage and the three other pins are taken to 0V for the respective LEDs to light up. With LEDs it is always important to use a current limiting resistor.

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