RGB5050 scroll bar

1、Module description:
By Arduino nano, control RGB5050 light colorful scroll.
2、Function Description:
From S1 to S4 was then performed, four buttons to control the beam of the rolling way, and switch to a different jumper mode, can display different colors of light beam.
3、Description of each function module:

4、Components and PCB diagram before welding:

5、Physical map after welding: