Hardware Pairing and Connection

Remote Controller Pairing Method 1

Note: For older system versions, install the pairing tool using:

Note

sudo apt install crsf-app

  1. Install crsf-app (skip if already installed):

sudo dpkg -i crsf-app
# If not installed:
sudo apt update
sudo apt-get install crsf-app

  1. Run the pairing command:

    crsf-app -bind

    f9
    You should see output similar to the screenshot.

  2. Power on the remote controller. Push the right-side button left to enter the menu, then navigate: Tools → ExpressLRS → Bind. This starts binding with the receiver.

    controller2 controller3

  3. When pairing is successful, the controller will display: pair success controller4



Remote Control Pairing Method 2

  1. Obtain the supplied dual-head USB-C cable or use your own full-featured USB-C to USB-C cable. alt text

  2. Keep the robot powered on; connect the cable to the USB-C port located next to the Gigabit-Ethernet jack and to the remote controller (see illustration). alt text Once the remote controller is linked to the robot, the handset will display a “Select Mode” menu—choose the third option: USB Serial. alt text

  3. Wait until the remote controller’s blue LED begins to blink slowly or stays solid; pairing is then complete.

Remote Emergency Stop Switch Pairing

  1. Remove the robot side panel to expose the emergency-stop receiver and buttons. remote_switch2

  2. Long‑press the pairing button on the receiver for 5 seconds until the indicator LED stays solid. remote_switch1

  3. Simultaneously long‑press button 1 and button 2 on the emergency stop remote until its indicator light stays solid.

remote_switch3

  1. Press button 1 again. remote_switch4

  2. Reboot the robot. Pairing is now complete.