Like was mentioned previously - I would strongly recommend running the circuits in parallel. Resistor per LED takes away pretty much any calculation, allows you to adjust the light level of each LED individually (larger/smaller resistor) if that's something that's desired, and prevents the one-fail all-fail scenario.Cheers!Simi
Yes Steve, you can put diff color LED's on the same circuit. If you're wiring the LED's in series (as your diagram shows) then you'll want the LED's to all be of approximately the same voltage so you can use one resister as needed to compensate for what ever your power supply voltage is.
Quote from: ImWolf on January 04, 2018, 03:46:31 pmYes Steve, you can put diff color LED's on the same circuit. If you're wiring the LED's in series (as your diagram shows) then you'll want the LED's to all be of approximately the same voltage so you can use one resister as needed to compensate for what ever your power supply voltage is. Incorrect. You want them to have the same current rating. Every element in a series circuit will have the same current. They can (and usually do) have different voltage drops.
While we're on the subject, why is the output current of the power supply not considered when calculating resistance?
So......the answer is 'Yes' in theroy...right?!Probably best practice is "No, you shouldn't."I know I shouldn't hook them in series of extended lengths. Typically, I have only put two LEDs on a single resistor rather than hook up a "string of Christmas lights". The limited room in the Ent-C's engine pods and the need for so many different light colors led me to think I could hook a single LED per color for fiber and have short fiber runs. It looks like I will have to have multiple wires running from the engines to the blinky board.As for the theoretical extraploations and suppositions of the nature of current/amps/volts and raw power - I will leave the musings to the gurus while I sit at your feet and try to understand! Thanks for the answers and the discussion.Please feel free to continue!Steve