More output pins needed (combining shields)
don't know if best location pose question, move if needed.
i working on project duemillanova. need attach ethernet shield (using pins 10-13) , lcd shield (using pins 4-9). leaves me pin 0-3. enough purposes, if not 0 , 1 hardwired tx/rx interferes.
am stuck here or there solutions problem? this scheme shows apparent use of analog pins output, not see being supported in reference.
btw: testing phase i'll drive leds pins, later on these (probably transistor driven) solid state releais.
any hugely appreciated.
i working on project duemillanova. need attach ethernet shield (using pins 10-13) , lcd shield (using pins 4-9). leaves me pin 0-3. enough purposes, if not 0 , 1 hardwired tx/rx interferes.
am stuck here or there solutions problem? this scheme shows apparent use of analog pins output, not see being supported in reference.
btw: testing phase i'll drive leds pins, later on these (probably transistor driven) solid state releais.
any hugely appreciated.
the analog pins can used digital pins. analog pins, there referred pins 14 19 (analog pin 0 = digital pin 14).
Arduino Forum > Forum 2005-2010 (read only) > Software > Syntax & Programs > More output pins needed (combining shields)
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