Re: Digital Lap Counter
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i think that infrared is an interesting idea as well, but i wasn’t talking about buying a commercial system, but building a micro homebrew system
since it needs to cover a much smaller area than a typical scanner you can likely get away with significantly lower power, and since the cars pass through in a specific orientation, you can probably use only one antenna instead of multiple as some use
the big advantage of ir to me would be that it would be more obvious to implement, and the disadvantage would be that you have to worry about line of sight, as well as the fact that it probably cant be as light as one of the anti theft deals. probably a bit more permanent too
so i think if it’s possible to hack up a slimmed down version of one of those things, it’d be worth it, but if not ir might be the way to go. certainly ir seems like itd be easier to build
here’s a chip for 6 bucks that could probably be paired with a cheap microcontroller to do the job http://www.secureorderprocess.com/ti/product_detail.asp?product_id=101