Arduino Output Pins only providing 3.5v

Paul_KD7HB:
Daisy chained means they are all in series between pin 13 and ground. Is this what you mean? How many connections on the base of a switch button?

Paul

I have power running from pin 13 to button 1, then from button 1 to button 2, then from button 2 to button 3, etc.

I have ground connected from GND to button 1, then from button 1 to button 2, then from button 2 to button 3, etc.

Should I seperate them out and only have 6 buttons per pin maybe? Then set 3 pins high and 3 pins low.