Using 6 x MCP23017 Issue

[TomGeorge]

Hi, @John40131

To add code please click this link;

How to get the best out of this forum

See also FAQ - Arduino Forum for general rules on forum behaviour and etiquette. Hello, Welcome to the Arduino Forum. This guide explains how to get the best out of this forum. Please read and follow the instructions below. Being new here you might think this is having rules for the sake of rules, but that is not the case. If you don’t follow the guidelines all that happens is there is a long exchange of posts while we try to get you to tell us what we need in order to help you, which is fru…

But before you do that, press [ CTRL ] [ T ], it will auto format, that is provide detents in your code to make it easier to read.
It may have helped find that missing curly bracket.

Tom..