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Make a serial keyboard out of a C64 keyboard with an Arduino mini.
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C64-serial-keyboard
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README.md

README.md

C64 keyboard to serial

An arduino sketch, created for an Arduino mini, that makes a serial keyboard out of a C64 keyboard.

It makes use of the cool [http://playground.arduino.cc/Code/Keypad](Keypad library).

Pin layout

Sorry, I have lost my notes on how to connect the keyboard to the Arduino mini.

I started from the C64 documentation, but is is wrong:

From the code:

byte colPins[COLS] = {2,3,4,9,6,7,8,5};
byte rowPins[ROWS] = {10,11,12,13,A0,A1,A2,A3};

Columns would be A through H Rows would be 0 to 7

Image of prototype

Here's an image of the keyboard interface on the breadboard version of my BASIC computer. You can see the Arduino mini tucked away under some cables. You can see a small part of the keyboard on the top left.

keyboard interface

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