229
253
UCSRB = _BV(TXEN)|_BV(RXEN)|_BV(RXCIE); /* tx/rx enable, rx complete intr */
230
254
UBRRL = (F_CPU / (8 * 9600UL)) - 1; /* 9600 Bd */
233
258
* enable ADC, select ADC clock = F_CPU / 8 (i.e. 125 kHz)
235
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ADCSRA = _BV(ADEN) | _BV(ADPS1) | _BV(ADPS0);
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264
sei(); /* enable interrupts */