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@@ -2,10 +2,12 @@ IBM 4704 to USB keyboard converter |
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================================== |
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This firmware converts IBM 4704 keyboard protocol to USB HID. |
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Keyboard initialization process takes a few seconds at start up. During that you will hear buzzer from the keyboard. **You need to plug USB cable after hooking up your keyboard to the converter.** |
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4704 Connector |
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Keyboard Plug from front |
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Keyboard Plug from front: |
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DSUB-9 |
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------------- |
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@@ -24,7 +26,7 @@ Connection |
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In case of using ATMega32U4(Teensy2.0): |
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1. Supply power with VCC and GND. |
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2. Connect CLOCK to PD1 and DATA to PD2. You can change pin with config.h. |
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2. Connect CLOCK to PD1 and DATA to PD0. You can change pin with config.h. |
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3. Optionally you may need pull-up register. 1KOhm probably work. |
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tmk
10 년 전