Lesson 20 7-Color Auto-flash LED

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It can automatically flash built-in colors after power on.


– 1 * SunFounder Uno board

– 1 * USB data cable

– 1 * 7-color auto-flash LED module

– Several jumper wires

Experimental Principle

When being power on, the 7-color auto-flash LED will flash built-in colors.

Experimental Procedures

Just connect pin S to 5V of the SunFounder Uno board and pin – to GND.

Now, you can see the 7-color auto-flash LED flashing seven colors.