Hire a keyboard company to make keyboards that emit small radio signals for every key typed (along with a keyboard id), and have a central collecting receiver.

Wireless keyboards sell at about $10.

They are safe just about as a cardboard armor, so it shouldn't be so difficult to build a centralized receiver.

This is the main reason why I never used and will never use them...

Rule One: "Do not act incautiously when confronting a little bald wrinkly smiling man."

In reply to Re^2: problem related to project key counter by psini
in thread problem related to project key counter by anonymoushydrogen

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