Hey all! ;D I want to make a 100m race timer with a sensor to sense the start and a sensor for the finnish, i was thinking of shining a Laser into an LDR and measuring someone run through the laser that way? what do you think? and how will i send data from 100 m away? any ideas? Thanks

100m race timer

system June 16, 2009, 1:07pm 5

Will just shielding the sensor work...?

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