Neopixel uneven colors

[Squimboos]

Got almost exactly the same thing on those 2 cheapo strips I bought. Resoldered everything, no fix.
It'll hit red, blue and green perfectly - but combing them to get different colours is a bit messy.

I have a sneaky suspicion its the controllers on the derpy pixels themselves, or maybe something wonky in the software?

Hmm. So do you have other strips working fine?

[jbkuma]

You might also want to make sure your battery is fully charged, strange things can happen when the pixels are under-powered. That being said, it sounds more like a bad strip. I've personally only ever used cheap strips and never had a problem. While there are some name brands.. they are really just sourcing them from china and branding it and hopefully either providing or demanding a higher level of QC.

[Squimboos]

Oh and one other strange thing is during extension and retraction things get a little weird. This took me a long time to notice but take this example. If I use a complete magenta, the red will be mostly off at the end of retraction leaving the blue still going. So it's magenta at the top of the blade and right as the retraction is completing it's turned almost completely blue. It doesn't appear awful. In fact in it's own way it's kind of cool. But still, I'm wondering about it.

I still have to try some fixes, but I won't have time until later so my curiosity won't let me not ask you guys about it

[jbkuma]

Which battery are you using, and what size wiring? The blue/magenta thing does sound more like low current. Normally with RGB we'd expect things to shift toward red, but the way these things work that isn't always the case. It can also be a fidelity issue with the signal line. I've seen a lot of weird things with pixel blades and prop building over the past couple years, but nothing that exactly matches this.

[RarestSquirrel]

Hmm. So do you have other strips working fine?

Yeah, no such issue with a pair of skinny strips from adafruit.