I am trying to work out what will happen if I power too many NeoPixels from the 5V pin on a Zero.
I understand from the Uberguide that this is the calculation required to work out the power draw:
To estimate power supply needs, multiply the number of pixels by 20, then divide the result by 1,000 for the “rule of thumb” power supply rating in Amps. Or use 60 (instead of 20) if you want to guarantee an absolute margin of safety for all
So, when too many NeoPixels are connected, is the Pi damaged permanently? Does something short, or will the lights fail gracefully?
Any help or good links appreciated.