How can I connect multiple MCP23017's to an arduino? I am working on a project and I am trying to figure out how to connect multiple MCP23017 IO Expanders to one arduino. All of the guides that I have found in my quest for information only explain how to connect one MCP chip or how to address multiple MCP chips. None seem to explain how to connect them physically. BTW, I am talking about the I2C version of the chip.
If you know how to connect one chip you know how to connect many chips.  One or eight it's the same.

All the SCL pins connect to the SCL pin of the Arduino. All the SDA pins connect to SDA on the Arduino.

Just make sure that each chip is given a unique address using the A0-A2 pins as detailed in the datasheet.