Hi,
I've tried searching through the newsgroups, but haven't had much luck so far. Hopefully someone here can help.
I need to build a simple device that connects to a Windows system via the USB port. All that the device needs to notify my Windows application of is when a circuit closes. Specifically, when the user presses the button and releases it, the application needs to know about it. Unfortunately, using any other ports is not an option.
I've looked at a number of USB books, but the ones that I've found information on so far require buying development kits. Does anybody know of a good resource that provides the basic information on building a simple USB device and using the Windows HID driver? The cost of the components is an issue, as I may need to buy a large quantity of them.
Thank you for any help or pointers that you can provide! Bryan