total NOOB here. trying to make a simple LED sign for my wife for mothers day. So it says: HAPPY MOTHERS DAY! Lighting each character separtely or whatever. So I don't need to control each led separately, just each character separately. So what I don't how to do is add current so that each letter…

How do I add more current to an output?

pwillard May 7, 2009, 11:53pm 5

2N4401 is ideally suited for LED DRIVER. It handles a few hundred milliamps. Around how many are the MAX LEDS are you stringing together off 1 pin?

Topic		Replies	Views
powering large numbers of LEDs Frequently-Asked Questions	2	1013	May 6, 2021
How do I connect 200 LEDs to arduino? LEDs and Multiplexing	10	3583	May 6, 2021
Powering Large Numbers of LED's With One Pin LEDs and Multiplexing	7	5283	May 6, 2021
Running an Arduino with many LED's Frequently-Asked Questions	11	9695	May 6, 2021
Up to 70 LEDs on one digital output LEDs and Multiplexing	6	1912	May 6, 2021