These are chat archives for Makuna/NeoPixelBus

1st
Sep 2017
Ed Skinner
@edsmskinner
Sep 01 2017 01:37
Ok Thanks a lot I will work with this library. I truly appreciate it
Ed Skinner
@edsmskinner
Sep 01 2017 03:02
Is there a site or someone who has made a bunch of animations for this library available using the NeoPixelAnimator object?
Michael Miller
@Makuna
Sep 01 2017 03:38
Check the wiki. Under the area of projects based on this library has one
stuffedmotion
@stuffedmotion
Sep 01 2017 19:25
Any way to limit total power usage? e.g. If I wanted to cap it at 10amps. Or just need to be cautious ?
stuffedmotion
@stuffedmotion
Sep 01 2017 20:08
Hmm or I wonder if it's as simple as looping through all the pixel color data, mapping each RGB value (0-255 to 0-20mA) and getting a power estimate that way. e.g. RGB(255, 0 0) on a strip of 100 LEDs would be 20mA x 100 = 2 amps. Then if it exceeds your max desired amperage, you could decrease brightness or LinearBlend to black slightly
Michael Miller
@Makuna
Sep 01 2017 20:38
If you are using esp 8266, please see the notes, flailing the chip causes the pixels to react. Which could cause max draw.
But yes, you could write something to calculate it based on values of you know the ratings of the pixels you use
Michael Miller
@Makuna
Sep 01 2017 21:36
That's FLASHING the chip causes the pixels to react.
stuffedmotion
@stuffedmotion
Sep 01 2017 22:56
Gotcha. I'll probably end up using 2 power supplies. From your experience, does 2 meters of WS2812B's powered from 1 supply look okay? (Not much visible voltage drop?)
I have a 4 meter stretch, thinking just doing half each
Michael Miller
@Makuna
Sep 01 2017 23:29
Its better if you supply the power at the middle point of the two meter strip, thus its only one meter each direction. Its all about how much current the flexy strip wires can transfer.