Communication with an ATtiny and Arduino. For saving Pins.

Other Hardware 3rd Party Boards
9

the ATtiny85 doesn't have enough I/O pins to do what you want.

Good point.

Wouldn't a shift register be useful here?

Another good point.

You could use a serial connection between Arduino and the Tiny:

That'll work to.

mixania, just use a shift register and save yourself a lot of pain :slight_smile:

Rob