It’s a little hard to capture with a phone, but here’s the initial test of His Noodliness. Unfortunately not on the roof yet because it turns out I had the wrong 3.3 to 5v level shifter, so running off a nano until the shipment comes in. I got the SN74LVC245A thinking it would do what it can’t. Anyways, enjoy.
https://youtu.be/YOK6e80b2Ok
Soooo nooooodly!
very illuminating
A Pastafarian masterpiece!
Awesome! As you are sending only, why level shift at all? You should be able to trigger the first one using 3.3V and from there on, the LED chip controllers will be talking at their ‘native’ voltage.
I have no trouble talking to WS2811/12s using the 3.3v from an ESP.
Not all WS2812s are created equal. When they first appeared around 2011, nearly all seemed to receive 3.3V signals. Then around 2014, many new ones couldn’t hear 3.3V logic when powered with 5V, or anything over about 4V. More recently the trend seems to be back towards 3.3V signal compatibility. But now at least a couple clone chips appear to be on the market. Buyer beware (or test carefully with specific chips, or practice good design…)
@Mike_Thornbury These lights aren’t WS2811 or 12s. They are P9813 pixels. I don’t guess it would hurt to give it a shot without level shifting. I’ll report back if it works.
@PaulStoffregen i buy direct from WorldSemi, so don’t get the poor/clone chip problem.