Roomba Cable

The Roomba cable reference design interfaces the Roomba SCI port to a I/O controller. The power output from the Roomba's SCI port is limited to 200mA by a PTC fuse internally within the Roomba but is more than enough to power most controllers. A unique feature of this cable is that it has the Roomba SCI wires are broken out to common interface plugs (2.1mm Barrel and Dupont). This gives the Roomba the ability to plug and play right away with I/O controllers with no soldering required. We want to share these files with you so you can create your own!


  • MD-70 Male 7-pin mini DIN connector to connect to Roomba SCI port
  • 2.1mm Barrel Plug to connect to I/O controller voltage input
  • 3-pin dupont connector to connect to I/O controller UART (TX/RX/GND) port
  • ARC skill available
  • Wire length: 15cm
  • Dimensions (7-pin mini DIN): 13.7(W) x 13.7(L) x 50.5(H) (mm)
  • Weight: 13g

  • Major Components

  • MD-70 Male 7-pin mini DIN connector

  • Manufacturing Notes

  • Manufacturer: Soldering of connectors and wires

  • Resources

    Documentation: Assembly Instructions, Datasheet, BOM


    ARC Skill

    The ARC skill for this reference design is very easy to use. Simply click on the control buttons to activate the Roomba!