I'm looking for advice on how to convert a circuit like this:
To a USB device from Parallel (LPT). Does anyone know either how to do something similar to this (see below) or where I can learn about building USB devices (BEGINNERS GUIDES!!)
The circuit would:
Not need to use the same chip etc - all new components for desired function.
Need to be able to have more or less lanes & lights - up to a combined max of 8 - ie 4 lanes and 4 lights or 5 and 2 respectively etc.
The lane sensors will always be Light sensors, light source seperate. The device would need to signal the computer saying what sensor had stopped getting light each time for when the motor car passes. This is for a model car race track lap timer and control system.
Finally, the system would need to be able to switch the 12v on or off programatically.
I want to do all this in C# too!