a) Basic design requirements:
The marquee is composed of eight light-emitting diodes (four red and four green light-emitting diodes, arranged at intervals) to complete the lighting and movement of the marquee; setting the corresponding switches and buttons can control the lighting and movement of the marquee to achieve a The light cycle is on, the red light is on, the green light is on, and the green light is off.
b) ****Extended design requirements:
(1) Change the moving speed of the marquee through adjustment;
(2) Change the moving mode of the marquee through adjustment (at least one of the circulation direction, number of lights, etc.).
This is the finished result. I put the previous PCB below. After downloading, you can use it to build the board.
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