FAQ - Makuna/NeoPixelBus GitHub Wiki

I am new to the hardware and LEDs that are needed to create a project, what's a good way to get started?
I am running a sketch that updates the pixels quickly, but they flash or only some pixels light up
I have connected up my Esp8266 and nothing is shown and the Pin doesn't have any output. Using the NeoEsp8266BitBangMethod works fine though.
On my Esp8266 (or other 3.3v based Arduino) they don't show the colors correctly.
I wish to dynamically set the number pixels, but I don't see a way to do this and other libraries expose a method to change the number of pixels like updateLength() or setPixelCount().
How can I convert Hsl to Rgb and/or just set the colors with Hsl?
How fast can I update my NeoPixels?
Is there a way to specify a color using a color wheel?
How many pixels does this library support?
I want to have my sketch do other important work like networking; how do I use your library with other features?
Other libraries have a method to dim all the pixels with one call. Is there a way to do this?
On my Esp8266 when I flash the sketch the LEDs light up, is this normal?
How do I store a reference to the NeoPixelBus in another class?
Using DotStars, why would I use the SPI method over the general purpose method?