Building Raspberry Pi Controllers Part 6: Displaying Messages on a LCD with a RPi



For more details about this project, please click this link to see the full article: http://www.allaboutcircuits.com/projects/building-raspberry-pi-controllers-part-6-displaying-messages-on-a-lcd-with/

LEDs are used as direct replacements for incandescent light bulbs because of advantages like less heat dissipation and long life expectancy. Besides being a light source, LEDs are flexible enough to be used in marquees for displaying messages. Letters and numbers can easily be created using seven segment LED displays using a simple wiring scheme obtained from the optoelectronic component’s datasheet. To create multi-letter messages using alphanumeric characters (letter – number combinations), a technique of operating each seven segment LED digit with an electronic driver circuit is needed. This technique of operating each seven segment LED digit with an electronic driver circuit is called multiplexing. Although seven segment LED displays are energy efficient and easy to use, a major problem for the optoelectronic component in sunlight is washout. This project is a continuation of the Build Raspberry Pi Controller series. For more information, as well as all the latest All About Circuits projects and articles, visit the official website at http://www.allaboutcircuits.com/

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Post time: Oct-19-2017
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