Typically, any design using neoPixels requires knowledge of the total number of NeoPixel in a string from the start. However, with commands in the Adafruit_NeoPixel library, a simple program will count the total number of NeoPixels in a given string. Further, the pixels can remain unlit for this process.
NeoPixel Counter
This code allows a program to count the total number of NeoPixels in a string with out lighting them
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