I'm using a Deicimila and 2 TLC 5940 to light these LEDshttp://www.newark.com/jsp/search/productdetail.jsp?SKU=87K7011
for a sign I'm making.
Bulb Size: T-1 3/4 (5mm)
LED Color: Yellow
Luminous Intensity: 2.5cd
Viewing Angle: 25°
Forward Current If: 20mA
Forward Voltage: 2V
My question is, what is the maximum number of LEDs I can use?
I know this board has an over current protection of 500mA. http://arduino.cc/en/Main/ArduinoBoardDiecimila
Does that mean I need to stay under 500mA?
I probably only need 21 LEDs, but may need more,so to play it safe, no more than 24 of the LEDs (20mA x 24 = 480mA)?