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Connecting Devices

INTERGRID Configurator communicates with devices over a serial connection through your browser. Choose a connection method below to learn more.

Connection Methods​

USB Direct ConnectionFC PassthroughINTERGRID™

Future Connection Types​

Support for DroneCAN connections is planned for a future release.

Auto-Connect​

Auto-connect remembers devices you've previously connected to and automatically reconnects when they are plugged in.

  • Enable/disable auto-connect using the toggle switch in the top navigation bar.
  • When enabled, plugging in a recognized device triggers an automatic connection sequence.
  • The connection progress is shown in a modal with step-by-step status updates.

Managing Connections​

Connecting Multiple Devices​

When using FC Passthrough, all devices connected to the flight controller are detected and listed automatically. You can select any device from the list to view its settings.

With a direct USB connection, only one device is connected at a time.

Forgetting a Port​

Your browser remembers serial ports you've granted access to. To remove a remembered port:

  1. Open the connection dialog.
  2. Find the port you want to forget.
  3. Click the Forget option next to it.

This revokes the browser's permission for that port. You'll need to re-select it from the browser's serial port picker the next time you connect.

Disconnecting​

To disconnect from a device:

  • Click the Disconnect button in the top navigation bar.
  • The Configurator returns you to the Home page.

If you physically unplug the USB cable, the Configurator detects the disconnection automatically and cleans up the session.

Save Before Disconnecting

Always save your settings before disconnecting. Unsaved changes are lost when the connection ends.

Connection Troubleshooting​

If you're having trouble connecting, check the following:

IssueSolution
No serial ports appearMake sure the USB cable is plugged in and your device is powered on. Try a different USB port.
Port appears but connection failsCheck that no other application (terminal, other configurator) is using the same serial port.
Connection drops immediatelyTry a different USB cable — some cables are charge-only and don't support data.
FC Passthrough doesn't find devicesEnsure the flight controller firmware supports passthrough mode and the devices are properly wired.

For more solutions, see the Troubleshooting page.