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AAT_AIR

Overview

This PCB is the air end in the AAT project. It is connected to the telemetry interface of the flight control through serial port 1 of STM32, and reads information such as flight control status, aircraft attitude, position, speed, etc., and then repackages it into LTM protocol signals after STM32 analysis, or through The output of serial port 1 is provided to other wireless devices, or sent to the CMX369 FSK modem chip, which is modulated into an FSK signal and sent back to the ground receiver through the image transmission audio interface for further processing. The air unit also supports 3 serial ports and 1 I2C expansion to achieve more functions. At the same time, there are diversified firmware update methods: USB-C interface DFU mode, SWD debugging download mode, and serial port ISP download mode. The USB port supports insertion detection, providing a smarter update method for the Bootloader. The onboard ws2812 LED is connected to the SPI pin to provide prompts for operating status.

Design Files

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Update:2025-06-19 23:26:48

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