Is it possible to use the same pin for different function in Atmel microchips?

[jeolex]

Is it possible to use same pin for different function in Atmel microchips ?

Dear Friends,

I have planned to make my own soil humidty sensor. In my control panel, I have LCD and butons. I wanna make control panel as tiny as possible, so I will use Attiny85 microchip. So you know this microchip don't have much pins in contrast to Atmega328p. I need one more pin for measuring button. That's the point, I have already use a pin for measuring battery for only initiating of control panel. After initiating to panel, I wanna use the same pin for measuring soil humidty when I press the button. So is it possible to use the same pin for two different duty.

Thanks..

 

[KlausST]

Re: Is it possible to use same pin for different function in Atmel microchips ?

Hi,

your question is not clear to me.
analog or digital, input or output??

A picture could help to clarify.

Klaus

 

[jeolex]

Re: Is it possible to use same pin for different function in Atmel microchips ?

You are right, these pins are digital and they will be input. Does it matter that it is analog or digital ? İf I use the true code, isn t it run ?

 

[andre_luis]

Re: Is it possible to use same pin for different function in Atmel microchips ?

You could share ( if haven't already done ) the 2 ICSP pins of the uC with some output, prefereably one which do not drain too much current.