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SJRC Connect to the Overkill Battlebot
  • Rough draft

    • SJRC Connect to the Overkill Battlebot

    Owned by Conor McCaffrey
    Last updated: Mar 26, 2023
    2 min read

    How to Connect to the SJRC Robot

    • Install QGC on the EUD (end user device) to use to control the vehicle

    • Power on the Robot

      • Connect battery

      • Wait a few seconds for the systems to boot

    • Connect the EUD to the WiFi hotspot created by the “Flight Controller”

      • Open the WiFi menu and use the following credentials:

        • SSID: ardupilot

        • Password: ardupilot

    We must change this password and SSID from the default before any competition to avoid unauthorized access

    • Launch QGC on the EUD

    • Wait for QGC to auto-connect to the flight controller

      • After the connection is established it will download paramters

        • The green bar at the top of the page will load

        • You do not need to wait for this to control the vehicle

    If the auto-connect does not work see the troubleshooting section below

    How to Operate the Vehicle

    • Select a desired control mode from the drop-down towards the top left of the screen

      • Typical choices are MANUAL -or- ACRO

        • MANUAL is manual control similar to a standard R/C remote but the motor mixing is in the flight controller and the ESC limiting parameters still take effect

        • ACRO is a partially controlled mode where the robot will attempt to reach rotation rate targets based on stick input

    • Arm the vehicle

      • Example QGC screen with live video and map

      • Click the “Not Ready” text in the top left corner of the screen

      • Click the “Arm” button on the bottom of the pop-up menu

      • Drag the slider on the bottom of the screen in the direction indicated to arm the vehicle

     

    Troubleshooting

    • I am connected to WiFi and QGC is open but the vehicle will not auto-connect

      • Quit and reopen QGC

      • Check if another device is connected to the robot

        • The WiFi hotspot will support multiple devices connected but only one can “talk” to the vehicle

        • If another device is connected tell that device to forget this network, then reboot the rover

      • Check your device firewall

        • For application firewalls make sure QGC is allowed

        • For port based firewalls make sure to allow traffic to port 14550

      • Double check your WiFi connection

        • The IP address provided should be 192.168.4.2 (I think need to check)

    UAX Technologies – info@uaxtech.com – 1-801-900-3050