Quote:
Originally posted by Steve
Nice work! What you gonna do with 4 lasers though?
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DAmn!! that's a good question! Since the software can handle 4 channels I didn't think about it and started building for 4 channels
Heheh!!!
Well since we don't have an easy way to run all 4 channels on circuit races, the most practical application will be for drag races, and setup one channel per lane using your mirror trick, or for performance testing by setting up all 4 channels on one lane one after the other, one channel from 0 to 3 feet, the other from 3 to 6...etc. that way the timing for each segment can be recorded in one run to provide info on acceleration and top speed at different segments of the track! Thats a lot of mirrors BTW
Anyways, I did the parallel port rig, Used pin 16 and 18 to carry 5 volts to the box. For the 5v I used the power cable that went to the CPU speed LEDs on the Case. (don' see those anymore

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I ran the rig on the Pentium1 PC, All is ok! IT turns the 4 channels on and off by pressing "F10".
The only thing left to do is a small voltage regulator circuit to fit inside the box to drop the 5v to 4.5v - 4v for the lasers.
I'll have pictures soon!