A super simple way to test Neo Pixel addressable RGB LEDs using little more than a 555 timer and a pot.
By Julian
Youtuber, shed dweller, solar charge controller aficionado
Good morning all…
Youtuber, shed dweller, solar charge controller aficionado
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How can i controll more than one neopixel with the tm 555?
ty so much I shorted my micrcontroller and was wondering if my leds were damaged too 😂
Liked it, quick and dirty … so British 😉
Haha you need another 555 to operate the reset of the main 555
Does anyone know what frequency’s the 555 can reach without a cap and with what tolerance they frequency can be held ?
What happens, when i connect 5v directly to data-in?
this is just, sooo, weird, its pulling me apart, the electrician in me screams while the programmer says "well it works so its fine".
also i've been looking for a breakout board, to which you connect the rgb strip you have, a power source and by the change of 1 resistor you would get different colours. anyone seen it?
was it too much to ask that the manufacturers just have these things turn on if you tie data-in high or low?
Good job man!
smart experimnt. thanks & thumbs up.
Very Cool Work Julian…! Keep up the great work. Nick.
You could use a AtTiny85 to drive the WS2812s, it is a 8 pin chip alternative and would require fewer parts.
What do you reckon the chances are of getting this to work with the ESP wifi chip. Then you can have a internet controlled colour LED. That would be cool?
You are correct that the tolerances for the datastream to worldsemis is not as tight as the datasheet would lead you to believe.
Reset width is actually >6ms, lows can be anything from 450ns-5ms. The high period is the only thing that is remotely critical.