I’m working on a project which involves running neopixels strips off a Feather Huzzah. I don’t know exactly how many yet, but we’re looking at around 80 (I think).
With this in mind, what’s the best way of supplying power to both the neopixels as well as the Huzzah?
My understanding if you’re able to run around 5 of them off the 3.3v pin without too much trouble (in fact I have a string of 8 of them running just fine at half brightness), but as I need around ten times this number, I wanted to make sure I wasn’t going to do anything stupid.
I’ve seen references to something called a logic level shifter (TXB0104 specifically), which should be used when trying to run more than 5 - which I believe is responsible for switching the 3.3v up to 5v - but I’m not sure if this is all I’m going to need - or if there’s a better way of solving the issue.
Can someone provide me with some guidance please? Thank you.