Flight controllers in question don't feature wireless connectivity - they are typically used in FPV racer drones, and only offer a USB connector for firmware fl

Flight controllers in question don't feature wireless connectivity - they are typically used in FPV racer drones, and only offer a USB connector for firmware flashing and configuration. There are Android apps that use USB OTG for the job, but the primary option is the desktop app built by the same authors/community as the flight firmware, which originated as a Chrome app and was eventually migrated to Electron.