I want to build an LED array using red and blue leds.
i have found a good calculator on the net that works out the required resistor, it even draws out the circuit for the array.
the problem i have is that it only bases this on using 1 type led.
the leds im using are:
Red:
2.4v forward voltage @ 20ma
Blue:
3.6v forward voltage @ 20ma
how would i work out the limiting resistor for say 8 RED and 2 BLUE leds??
source voltage is 24v
if there is a formula (im guessing there is) could someone post it, it would help a lot
EDIT: just realised this isnt possible, i have also solved my problem
i have found a good calculator on the net that works out the required resistor, it even draws out the circuit for the array.
the problem i have is that it only bases this on using 1 type led.
the leds im using are:
Red:
2.4v forward voltage @ 20ma
Blue:
3.6v forward voltage @ 20ma
how would i work out the limiting resistor for say 8 RED and 2 BLUE leds??
source voltage is 24v
if there is a formula (im guessing there is) could someone post it, it would help a lot
EDIT: just realised this isnt possible, i have also solved my problem
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