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Originally Posted by NJSPEEDER
Quote:
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Originally Posted by Fasterthanyou
I'm looking into building a miniture drag strip that uses a standard laptop. The tricky part is going to be having multiple inputs. 2 cars and a start/finish beam = 4 inputs. The software I can write in an evening, the hardware on the other hand.... I'm thinking about infrared, it's the cheapest circuit. Now how to bring it into the computer is the hard part.
Damn you Tim, you got me working on yet another project AAHHHHHH.
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i have a friend of my brothers on the case too. he is an electrical engineer and has a few good ideas.
start and finish seems to be easy from what i am seeing around, getting a tree and foul lights involved seems to be the hardest part.
i was thinking about jsut looking into one of teh many speed trap set ups that are available for rc cars to do the traps. they are pretty cheap, just need one for each lane.
later
tim |
That's why I want to use a laptop. I can program in the lights EASY and the timing can be done, recorded, etc. It just makes things so much easier when you have the tree displayed on the laptop screen. I can also easily interface external LEDs through the parallel port.
The only thing I need to do is get an EE to design the ir beam circuitry and help me decide how to run the a/d into the laptop. From there I can control it. I don't care HOW the signal gets into the computer, I just need it to get in, lol.
I'm not good at designing circuits so I'm limited to whatever is on the net. If an EE could design an IR beam break circuit to a digital signal I could do the rest of the interfacing. Leave the programming up to me.
__________________
, Jon
Owner of a Red Sled.
If it\'s EFI I can tune it. Specialize in 82-95 GM (yes Lt1\'s)
\"If you can leave black marks on a straight from the time you exit a corner till the time you brake for the next turn.......Then, you have enough horsepower\" - Mark Donohue
