Input Curcuit Question

Hi Paul,

I have a circuit questions that I would like to clarify.

When using a channel as an input do I need to have a resister on each channel or can I use one resister for several channels. ( Have one reisister to 5V and then branch of to each switch ) Hope you understand what I mean.

Thanks Leo


You need one for each switch. Otherwise, all of your inputs would be connected together by that branching wire!