Usb Hardware Key Hack Code Or Control
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Usb Hardware Key Hack Download Step 1

Now you need to connect your own mad creations to the boards.

In a previous life I had founded and run the Instructables Design Studio (RIP) Autodesks Pier 9 Technology Center.

Send inputs into the computer without a pesky microcontroller.

Usb Hardware Key Hack Download Step 1

Supplies: You will need: A USB Keyboard Add Tip Ask Question Comment Download Step 1: Open Up the Keyboard Open up the case.

Usb Hardware Key Hack Driver Or An

You can use a screwdriver or an any ridiculous looking multi-purpose tool.

Sometimes even after all the screws are removed the keyboard still wont open up.

In this situation, dont worry, just forcefully pry the case apart with your screwdriver.

Add Tip Ask Question Comment Download Step 2: Trace the Letters Back to the Pins The inside of the case should have two plastic sheets (one on top of the other).

One plastic sheet will have printed conductive tracings that go to one set of pins on the circuit board and the other sheet will have tracings that go to another set of pins on the circuit board.

When you press down on a key, the tracings on both sheets will touch each other.

This completes the circuit and tells the board to send a letter, number or command back to the computer.

What you need to do is to label each conductive circle on both sheets with the letter key that corresponds to it.

Once you have labeled both plastic sheets with all of the corresponding keys (that you plan to use in your project), the next thing you need to do is to trace the letters back to the circuit board with a Sharpie (see notes on pictures).

One way to simplify the matter is to consider one sheet SIDE A and the other SIDE B.

Below is a chart that I made for the particular keyboard I was working on.

It will help you immensely if you make a similar chart for the keyboard you are working on.

Usb Hardware Key Hack Code Or Control

It takes in a lot of inputs and sends out one output to the computer (that being a an ASCII code or control command).

When a switch is closed, the shift register processes which two pins are connected and interprets it as one particular output.

So, if you had ten pins going to each plastic sheet, then you would have one-hundred possible combinations.

This is because every single pin on one sheet can be comined with every single pin on the other side.

In other words, you have just produced a 10 X 10 2-dimensional array.

For instance, if you connect Pin 4 on SIDE A and Pin 6 on SIDE B you will produce the letter M on the computer (see picture).

If you connect Pin 8 on SIDE A and Pin 7 on SIDE B you will produce the letter I on the computer (see picture).

Add Tip Ask Question Comment Download Step 4: Attaching Wires So, now you know which pins produce which letters.