can i use parallel port as a switch and form a program using VB6?

Question

i need to make a school project. is there any website, where i can get templates or projects. i need to make a link between two sensors, and a computer. so that when the link in sensors breaks, the clock on the computer will start. i want to use one of the ports on the mother board. can anyone help me in this?

Answer 1

unless your sensors output rs232 the above suggestion won't work.
you are on the right path with the parallel port, Basically you can send an active high or low state to one of the pins on the parallel port and loop or use a timer until the state changes then start and stop your clock.
Here is a good place to help with the code part
http://www.aaroncake.net/electronics/vblpt.htm
http://www.vbforums.com/search.php?searchid=1200433

Answer 2

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Answer 3

On your toolbox, add the component COM

This gives you easy access to your com(serial) ports for listening to a sensor like you describe.