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Created February 19, 2022 17:26
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ATtiny817 Morse Key
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readme.txt
Turns the Adafruit ATtiny817 breakout into a Morse code output peripheral.
All registers are 16 bits.
Registers
00 Character Rate
01 Word Rate
02 Frequency
03 Duty Cycle
Busy pin
PWM Out pin
Buffer size N
Send text string up to N bytes long.
Wait for busy pin to fall, send the next string.
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