Quote:
Originally Posted by mojo
You can do it like freespace mentioned and it will work but not recommended (sorry freespace). It's unreliable having LEDs directly in parallel with each other - which is why you never see them in circuits like that. LEDs need their own current limiting resistors.
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NP! No one ever told me that :-)
But now I know - the things you learn eh :-)
The series design is less desirable to me because it requires more voltage. The original design of this thread had a resistor for each LED - so they are not directly in parallel - and it should work fine.
And yes, if the 6V isn't regulated I recommend a voltage regulator to drop the voltage down to 5V ( LM715? 785? Forgot :\ I don't think there is a 6V regulator model). Then you can just adjust your equations a bit.