B4R Question Use Analog Pins as Digital Pins?

[ilan]

Hi

i see that it is possible to use Analog Pins as Digital pins. so if i am out of all digital pins i could basically use the analog pins to write HIGH/LOW Voltage like i do with Digital Pins, right?

digitalWrite() - Arduino Reference

The Arduino programming language Reference, organized into Functions, Variable and Constant, and Structure keywords.

www.arduino.cc

how to initialize the Pin? with A1 instead of 1 (like a digital pin)?

 

[klaus]

The initialization is the same.
Only the pin number is different.
Digital pin, pin number as integer:

DPin.Initialize(3, DPin.MODE_INPUT)

Analog pin:
Analog pin, pin number like below:

APin.Initialize(APin.A0, APin.MODE_INPUT)

A link to documentation.

 

[ilan]

Can i use digitalwrite with analog pins right?

 

[klaus]

Yes.
But once you have set an analog pin as output, and later you want to use as an analog input, you need to reinitialize for input.