Otherwise you will short Vcc directly to GND when a button is pressed.
I think the speaker outputs are going into arduino inputs, and it is the speaker - anyway which is why you are not going to need a series resistor and no shorts will happen.
Otherwise you will short Vcc directly to GND when a button is pressed.
I think the speaker outputs are going into arduino inputs, and it is the speaker - anyway which is why you are not going to need a series resistor and no shorts will happen.