|
US$380???!!!!
whoa!
i found a parts list and bare schematics for one using about $25 in Rat Shack parts, but no detailed connections, P/S requirements or perf-board/PCB layout...
this one is going to have to take some thought... one of the Tomy's i looked at required the car to physically pass through a gate (which could be a challenge, i guess)...
what i'm looking for i just a simple counter - don't need a PC interface... a number of open source designs are available using a 1284 port (LPT) ...
maybe a simple reed relay and mechanical counter might work; perhaps one could be designed without the need for a battery... ideally it would be cheap, easy to be put together, simple to set up, simple to reset, yet still provide a large enough display of lap numbers...
or perhaps just a series of flags, with one flag dropping for each completed lap?
|