Remember to sudo chmod +x mcp23017.py before running. Keys 1-0 trigger MCP's ports to switch remote buttons. Q (without [Shift]) exits the menu. Python Library to interface with MCP23017 Port Expander ...

(https://store.ncd.io/product/16-channel-general-purpose-spdt-relay-controller-with-i2c-interface/) This Sample code can be used with Raspberry Pi. Hardware needed to ...