I'm building a Proofing Box for Baking :)
I'm gonna use several parts, and i also need to connect some buttons to control the desired Temp/Humidity.
I'll use Momentary Push-Buttons.
To be specific these http://dx.com/p/ds-426-non-locking-push-button-switch-red-black-20-piece-pack-139679.
My question is, is it better to assign a separate (digital) I/O pin for each button, or is it better to connect them in parallel with resistors that have different values those i could calculate which button was pressed according to the SUM of R?
I think it will be easier to use the first method, and i do have enough free pins :)