Re: [Firmata-devel] Sync Firmata's pins to Arduino's pins (committed)

[Paul S. <pa...@pj...>]

> As far as I know, the range of digital pins is from 2 to 21 if the
> number of analog inputs is 8. So how about replacing the line as
> follows?
>
> #define IS_PIN_DIGITAL(p)       ((p)>= 2&&  (p)<  TOTAL_PINS)

I believe those extra 2 analog pins on the TQFP '168 & '328 chips are 
not capable of digital I/O.  They seem to be analog only, according to 
Atmel's datasheet.