The Grove - Variable Color LED is a RGB LED that can be controlled by both digital and PWM signals, there are three changable resistors on board, with which you can change the color simply and quickly.
This is the V1.1 version of this product, comparing to version 1.0, a logic IC has been addres, so that it can better work wtih logic DC Jack. However if you don't use a logic DC jack with this RGB LED, there is no difference in using this or the old version. Just get one and start your colorful LED project!
Let op: The color can only be changed using the resistors. If you want change the color digitally, you can use the Grove - Chainable LED.