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1. USART Buffer Empty interrupt used for TX.
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2. TX routines removed completely from the main loop. All the transmission is processed in the interrupt service routine.
3. Tested with Arduino Nano at 16MHz and with a stand-alone ATmega328P running at 2MHz.
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@4x5dm
4x5dm committed Apr 1, 2016
1 parent 687f5f2 commit 9e8273a
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