User Manual

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Here on the photographs you can see 4 electrode LED. Every separate pin for Green

or Blue or Red color is called Anode. You will always connect “+” to it. Cathode goes

to “-“ (ground). If you connect it other way round the LED will not light.

The common negative connection of the LED package is the second pin from the flat

side. It is also the longest of the four leads and will be connected to the ground.

Each LED inside the package requires its own 220Ω resistor to prevent too much

current flowing through it. The three positive leads of the LEDs (one red, one green

and one blue) are connected to MEGA2560 output pins using these resistors.