You Will Need:
-An RGB LED, Common Cathode (Negative)
-An Arduino Or Arduino Clone
-3x 220Ohm Resistors
-A Breadboard/Prototyping Hardrware
-Some Nice Wires, Prefferably Color Coded (Red, Green, Blue and White For Ground)
-touch osc-app-5$ (Its Is Worth It!)
-Some Small Pliers to bend the resistor and LED leads.
Step 1: Bending The Leads (=
Step 2: Constructing the Circuit!
PWM is basically flashing the led so fast that the human eye sees it as steadily on just at a lower birightness, different brightnesses are achieved by changing the ratio of which the led is on then off. the pins 9,10 and 11 are simply pulse width modulation compatible.
The very shortest lead (red) will go thorugh a resistor to pin 11, The 2nd shortest (green) will go to pin 10 and finally the blue (remaining lead) will go to pin 9. and incase you havent already wired up the longest lead- it is the negative of each led, this must go to a ground labbleled hole on the arduino.