Free lap counter timer and DIY transponder - RCCanada - Canada Radio Controlled Hobby Forum
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Old 09-06-2015, 01:59 PM   #1
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I am: BadBeef67
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Free lap counter timer and DIY transponder

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I've built a RC lap counter timer using a do it yourself transponder. LapTrackerTK is available free as opensource software, and the transponders can be built for sub $10. All the information is on sourceforge:

See the working concept here on youtube:

I suggest reading the wiki first. LapTrackerTK is the program I built using Tcl/Tk. The program runs on windows 32bit or 64bit, and can also be run from source in Linux with a Tcl interpreter. LapTrackerTK is fully featured and can track any number of cars. You can change the number of laps run in a race, or choose a duration of race by time. Track length is required for accurate speed calculations. You can enter meters to have speed calculated in km/h. Feet will display the speed as mph.

The DIY Transponders are inexpensive Wi-Fi modules that send their ID's to LapTrackerTK over a Wi-Fi network when they are triggered a magnet embedded in the track surface.

What you'll need:

Laptop or PC connected to a network.

Access-Point connected to the same network

You can achieve a fully wireless setup if you have a laptop connected to an Access-Point.

LapTrackerTK - read all the instructions on the wiki.

ESP8266 DIY Transponder fully programmed - read all the instructions on the wiki.

Magnets embedded in your track

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esp8266 , lap counter , lap timer , timer , transponder

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