It is good practise to put a decoupling capacitor next to every digital chip. The neopixel is a digital chip plus a few LEDs.
But for just playing with only one, no problem to go without.
It is good practise to put a decoupling capacitor next to every digital chip. The neopixel is a digital chip plus a few LEDs.
But for just playing with only one, no problem to go without.