Drives a WS2812B NeoPixel connected to Raspberry Pi pin P1-08
Connect a single NeoPixel to your PI as shown in the included image.
Syntax:
Accepts pixelspecs in the format [DD]RRGGBB where... [DD] is an optional durration in 1/100s of seconds, and and RR, GG, and BB are the briness level for red, green, and blue respecively.
All values are hex numbers in the range 00-ff.
Examples of pixelspecs: 000000=Black, 05FFFF=white for .05s, 800080=50% blue for 1.28s
You can specify one or more pixelspecs on the command line, or run the program without parameters and it will read and execute pixelspecs from stdin.
Example:
neouart <demos/disco.nua