Software serial / buttons on IO expander
Posted: Sat Jul 08, 2017 5:52 pm
Hello,
I'm working on a complex DIY Gamebuino. As expected i run out of digital pins
Will it be possible to use Software Serial on the digital pins from an IO expander (PCF8574), the buttons should be possible, i'll have to modify the library i guess. I need two Software Serials or at least one. Also i'm using the VQFN version of ATmega so i don't have the A6 and A7 pins too.
Any sugestions?
Thank you for taking your time to read this. Have a nice day guys
Georgian Borca.
I'm working on a complex DIY Gamebuino. As expected i run out of digital pins
Will it be possible to use Software Serial on the digital pins from an IO expander (PCF8574), the buttons should be possible, i'll have to modify the library i guess. I need two Software Serials or at least one. Also i'm using the VQFN version of ATmega so i don't have the A6 and A7 pins too.
Any sugestions?
Thank you for taking your time to read this. Have a nice day guys
Georgian Borca.