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5. Install FastLED. You’ll need this program for your code to run—it’s, a library that takes some of the nitty-gritty work out of coding each LED to light up manually.

Click Sketch > Verify / Compile to make sure the code is properly in there. Save the file and then attach the Arduino to your computer with the USB cable. Click File > Upload.

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Posted in Arduino Hacks Tagged arduino, code, code hacks, hd44780, menu, menu code ← NASA Selects SpaceX To Launch Lunar Gateway A Brief History Of Optical Communication → ...

Recently, we published an entry-level Arduino project with a single seven-segment LED display. Although it’s an amazing DIY project, we noted that most of the readers are looking for more advanced ...