Yay I'll get the parts from radio shack tomorrow and bench test it probably this weekend if I get my new violet lasers soon enough. I wish I leaned about MOSFETs in my circuits class I would of totally gone for this design over what I came up with its so much cheaper, simpler, faster, and just plain better thank you for all your input wayneh you have been such a big help . There is one final design flaw left that I need to fix when you run through the photogate I was getting a lot of double feeds in other words my left leg would trip the laser then my right would trip it a split second later do you know of a component I can add to the circuit that will let me slow down how fast the circuit resets itself so it takes for instance a half second or so before the laser can be tripped again so that I can still use the fastest lap/average lap feature of the stop watch that data will be useless if there are 0.02 second readings on it from double feeds
Last edited: