Sequential Lighting

I am looking to create a string of LED's that can be programed to turn on and off sequentially over 100 meters that can show the speed of a runner over that distance. ex: 100 meters in 9 seconds. any ideas, also re-program the same to different times.

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Toga_Dan1 year ago

at one point, I was going to do this with cams and switches. But solid state is probably better.

What are you trying to accomplish, making a pacer/road rabbit along the track so the runner can match/follow for training or runs or you want something to determine what speed the runner is running the course at intervals?

ScottR148 (author)  caitlinsdad1 year ago

a pacer/road rabbit, along a track for training.

The easiest solution is to hardwire a string of lights at regular intervals but 100 meters is a lot of wire and physical maintenance to set up/roll up/wear and breakage. You might want to look into designing some kind of marker light pod to drop off at those intervals. Have your "base station/arduino/raspberry pi" communicate to each pod by wifi or have each pod light up and then relay the on signal to the next light marker pod. You'll need a little math to calibrate everything with distance/timing/actuation but that shouldn't be too difficult. With a raspberry pi, you might have a better time in trying to integrate the variable timings or capture run data to use for analysis.

i'm no engineer but I think that much wire is going to draw a lot of amps and trip a breaker.

that's why they invented fiber optic cable and use durum wheat for the best spaghetti

ScottR148 (author)  caitlinsdad1 year ago

Thank you.