diff --git a/docs/breadboard/expander-MCP23017-basic.fzz b/docs/breadboard/expander-MCP23017-basic.fzz index ac3fc4a4a..d19f3ba0f 100644 Binary files a/docs/breadboard/expander-MCP23017-basic.fzz and b/docs/breadboard/expander-MCP23017-basic.fzz differ diff --git a/docs/breadboard/expander-MCP23017-basic.png b/docs/breadboard/expander-MCP23017-basic.png index 4c8b364e1..b6265e63b 100644 Binary files a/docs/breadboard/expander-MCP23017-basic.png and b/docs/breadboard/expander-MCP23017-basic.png differ diff --git a/docs/breadboard/expander-MCP23017.fzz b/docs/breadboard/expander-MCP23017.fzz index 138b8afc6..2b374bec0 100644 Binary files a/docs/breadboard/expander-MCP23017.fzz and b/docs/breadboard/expander-MCP23017.fzz differ diff --git a/docs/breadboard/expander-MCP23017.png b/docs/breadboard/expander-MCP23017.png index 3b55167c0..c45cd628e 100644 Binary files a/docs/breadboard/expander-MCP23017.png and b/docs/breadboard/expander-MCP23017.png differ diff --git a/docs/expander-MCP23017.md b/docs/expander-MCP23017.md index eb562d3e5..a5d355b82 100644 --- a/docs/expander-MCP23017.md +++ b/docs/expander-MCP23017.md @@ -21,7 +21,11 @@ Fritzing diagram: [docs/breadboard/expander-MCP23017.fzz](breadboard/expander-MC   - +**Note:** MCP23017 has three pins (15-17) to set the I2C hardware address. By default, these +pins must be connected to ground for the default address 0x20. If you have another +I2C device connected with that address or you're planning to use multiple MCP23017s +see page eight of the +[data sheet](http://ww1.microchip.com/downloads/en/DeviceDoc/21952b.pdf). Run with: