I made a lamp for a friend that runs 50 WS2812 LEDs from the 5v line on an Adafruit Pro Trinket. I've run 44 before in this way without problems...but though the lamp starts up fine, after it's warmed up a little the LEDs start to flicker, especially if set to "all white" (255,255,255). I think I'…

Yep...which is why for the white setting I only turn on every other LED (it's still plenty bright enough), so that gives 1.5 Amps = 1500mA...I just need to know if I can get that from the wall socket I use, and still drive the processor without having to rip the entire assembly apart and start again…

Well, providing an answer is a little dodgy because I can't see your setup, [try reading: http://forum.arduino.cc/index.php?topic=149015.0 ] but if I were doing this, I would have only minor compunction about soldering directly to those two little pads, on the underside of the board, that seem to be …

The 5v line? I'm not too sure how the Adafruit Pro Trinket operate I guess... is the +5v line.. AFTER the regulator? WHat are you using to POWER the thing? You could use a phone charger/micro USB cable.. to 'power' the Trinket.. and tap into the VIN line.. (which if you are using a regulated 5v p…

Thanks for advice and appreciate I didn’t give a lot of detail...because I didn’t know what detail to give. That said, followed the advice that WAS given by using the USB Bus output (1500mA) instead of normal +5v line (500 mA). Balanced rest of shortfall by limiting parameters in sketch such that e…

5v power and WS2812 LEDs

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DVDdoug November 6, 2018, 6:39pm 2

20mA per color is 60mA for white x 50 is 3 Amps.

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5v power and WS2812 LEDs

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