Practice Canopy with Beeper Holder (No Camera)

I created a practice canopy with a beeper holder (no camera). This canopy converts the camera section into a buzzer holder. It allows you to repurpose an FC with a non‑functional VTX into a beginner‑friendly line‑of‑sight practice quad. On my BetaFPV Air FC 4‑in‑1, the base of the VTX antenna tore off together with the pads. I installed an external VTX, but the video feed never fully recovered, so I decided to build a LOS practice quad without a VTX. Although the Air FC 4‑in‑1 does not have a dedicated buzzer port, you can still drive a buzzer by using an unused UART port. By configuring the buzzer or LEDs to warn you when the voltage drops, you can detect LOW BATTERY. Also, please set the VTX power output to 0 and disable the SmartAudio function before use.