Why would an IR remote circuit use one resistor/transistor pair for each LED


Posted on Feb 6, 2014

Why have one resistor and transistor for each LED, instead of chaining the LEDs in series and controlling them with a single transistor which is controlled, in turn, by the arduino pin coming in through a single resistor I have no qualms about implementing the same way (frankly, I`m tempted to use about 32 LEDs, resistors, and transistors just for the hell of it, ) but I`d like to understand why it was done this way.


Why would an IR remote circuit use one resistor/transistor pair for each LED
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