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Project roomba Summary
  • Development Status: -
  • Started: 2004-11-24, Last Update: 2005-05-31 01:38:07
  • Platform: Roomba by iRobot
  • Programming Language: -

    Intro | Roomba Microcontroller Functional Pinout | Roomba Circuit Board | Roomba Serial Port
    This website is not associated with iRobot. The information presented here applies to Roomba Red Item #4100, Roomba Item #4105, Roomba Discovery Item #4210, and Roomba Discovery SE Item #4220, it does not apply to the original Roomba series.

    Roomba Circuit Board (PCB)

    PCB Frontside


    (click to enlarge)

    Connectors Top Left to Right

    J1 purple/purple - speaker, gray/white - left motor down switch
    J3 - main brush motor
    J4 - left motor and encoder (32 pins per revolution)
    J9 - dirt sensors
    J10 - to top panel, right side IR wall sensor
    J16 - right motor and encoder
    J17 black/red - vacuum motor in dust container
    J18 black/green - side brush motor
    J19 black/yellow - right motor down switch
    J15 black/red - battery charger connector

    Connector Bottom

    J11 7 pin serial port connector 57600 baud 8-N-1

    PCB Backside


    (click to enlarge)

    Connectors Left Top

    J7 red/white/black - battery
    J25 - bottom battery recharge pads
    J2 - stairs sensors

    Connectors Left Bottom

    J22 green/green = front wheel down switch, purple/purple - front wheel down sensor
    J8 - front bumper board

    Connector Right Top

    J24 - stair sensors

    Connector Right Bottom

    J23 red/blue/black - front bumper board, IR receiver: red - vcc, blue - IR signal, black - grd

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