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101 display basics
Racing Lights for athletics running track, 40-50m. What are the correct questions to ask?
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[QUOTE="Grozzy, post: 120610, member: 27714"] Definately WS2811 pixels as they are easier to drive sequentially. Depending on spacing 2", 3" or 4" is roughly 500 to 1000 pixels. To keep things simple I would probably go down the Arduino path with a rotary encoder. Powers on instantly and once you have the code working is fairly foolproof. Turning the encoder would change the speed of the chase and then a sensor (IR across the start line) or switch to trigger the start/stop/reset. You could even have all the lights go red, orange, green when you press the start button. Have a look on either hackster.io or adafruit for examples of the FastLED library. [/QUOTE]
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Racing Lights for athletics running track, 40-50m. What are the correct questions to ask?
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