A6 A7 no GPIO?

A project log for Square wave generator

I found a 74HC294 programmable clock divider in my IC box. After reading the datasheet i liked to build a little box...

OtiVuckOtiVuck 12/10/2017 at 07:220 Comments

I learned that A6 and A7 cannot be used as digital IO (stands in the datasheet of the mega328, wow didn't see that..). So had to adjust the schematic. 

The rest seems to work from POV hardware, so just a little bit of firmware needed and this little mini project is ready for the next step.

Also created a repository on github to handle the versions of the files (schematic and firmware).