Hardware
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Target MCU is ATMega32u4 but other USB capable AVR will also work.
-You can use PJRC Teensy as dev board.
+You can use PJRC Teensy as development board.
http://www.pjrc.com/teensy/
Wiring:
Data from computer
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-- LED contorol ON/OFF(0/1)
+- LED control ON/OFF(0/1)
bit 7 1(fixed)
bit 6 全角
bit 5 ひらがな