- how do you know the red is 2V and the green&blue are 3.3v? you own experience or am i missing somthing?
(5V - 0.7 - 3.3)/0.02 = 50 ohm
and if for example im gonna use 100ohm - nothing bad will happen it's just gonna be a bit dimmer, and it's gonna have a longer life?
- about the supply: for the leds : 600mA, Arduino: 50mA - that's mean i need a supplier of EXACTLY 5V/650mA ?
- about the connections - im not sure i understand you
The barrel jack connector output goes to a reverse polarity protection diode which then connects to the Vin header pin, and then feeds the 5V regulator and shows up at the 5V header pin
im sorry but what 5V regulator? im realy a newbie :\
i draw another one with the diode u said i hope u can see this one:
http://sphotos-g.ak.fbcdn.net/hphotos-ak-ash3/s720x720/550573_4395099432812_145428076_n.jpg