Public Announcement System Using Drone

The Public Announcement System Using Drone integrates aerial mobility with an autonomous audio broadcasting platform. At the core of the system is a Raspberry Pi 5 paired with an AIY Voice Bonnet, which handles local audio processing, voice recording, and playback functionalities. The Raspberry Pi and its peripheral audio hardware are securely mounted onto a lightweight aerial chassis—specifically, a racing drone frame such as a Qav250 or F450 model—alongside a dedicated speaker for sound projection. Stability and spatial movement of the aircraft are managed by a CC3D flight controller, which translates user commands into precise motor controls to navigate the drone through the air. Power distribution across the onboard computer, flight systems, and audio amplifiers must be carefully managed to ensure the Raspberry Pi and speaker receive stable voltage without introducing electrical noise into the audio signal. Software-wise, the system runs on a specialized AIY Raspbian image configured with custom voice recording and playback scripts. Users capture audio data using the setup, and the script triggers playback through the speaker while the drone is in flight, allowing voice messages to be broadcast dynamically across targeted outdoor areas.