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Topic: Uno- out of digitals pins. can i use analog pins ? (Read 4 times) previous topic - next topic

fca

hi there
after connecting all my alarm zones, led and buzzer, phone etc ... i have only one digital pin left....
Question can i use the analog pins to connect the leds ?
instead of digitalwrite(ledpin1,high ) something like analogwrite(a1, high) ?

can this be done ?
regards.

fca

Hi
I already read that page, i can only see this

Quote
Note

The analog input pins can be used as digital pins, referred to as A0, A1, etc.


so if i do a
pinMode(la0, OUTPUT);
digitalWrite(a0, HIGH);

the a0 pin will have the behavior of a digital pin ?

thanks

Bobnova

You can call 'em 14/15/16/17/18/19 as well, A0 is digitalWrite(14, HIGH), A1 is 15, etc.

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