Analog FPV video is not UART
Learn the difference between VIDEO, CAM, VIN, VOUT, UART TX/RX, SmartAudio, and Tramp to avoid common analog FPV wiring mistakes.
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FlyingRC tutorials
Wiring, setup, flashing, and troubleshooting tutorials for FlyingRC hardware users.
Flash firmware with STM32CubeProgrammer
Use ST's official STM32CubeProgrammer to write a FlyingRC .hex firmware file over the STM32 USB bootloader / DFU interface.
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