Introduction
This is a kind of chip_inside LED, so you can control each LED individually! It will be simply amazing when you change the color. And for controlling, it only need one digital pin of your Arduino whose MCU power supplies from 3.3V-5V.
This digital RGB LED uses single thread zero yards communication protocol,"DIN" will receive the contrtol signal and transmit to the next LED via "DOUT" port. So these LED could be cascade connection, and individual control. It is amazing if you want to show some beatuy with LEDs.