RT MCP23017 no headers

This is an MCP23017 board for expanding the virtual pins on a DCC-EX command station via an I2C connection.

The I2C can either be by Qwiic cables or Dupont cables.

It has provision for connection of an interrupt back to the command station.

There is provision for external power to the sensors.

You need to supply the power connector, input/output and address headers.

Image is computer generated 3D showing all headers soldered in place.

Includes one 50mm Qwiic cable.