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Add README.md
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@ -3,16 +3,29 @@ IBM 4704 to USB keyboard converter
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This firmware converts IBM 4704 keyboard protocol to USB HID.
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Connect Wires
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4704 Connector
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--------------
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Keyboard Plug from front
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DSUB-9
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-------------
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In case of Teensy2.0(ATMega32U4):
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\ N 2 3 4 5 /
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\ N N N N /
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---------
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2 GND
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3 VCC 5V
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4 DATA
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5 CLOCK
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N No connection/No pin.
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1. Connect Vcc and GND.
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2. Connect Clock and Data line.
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- Clock is on PD1 and Data on PD2.
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3. Optionally you need pull-up register. 1KOhm is OK?
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To change pin configuration edit config.h.
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Connection
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----------
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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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3. Optionally you may need pull-up register. 1KOhm probably work.
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Build Firmware
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