There is no custom PCB for this project — everything is wired using Dupont jumper cables. The various components (ESP32, microphones, DAC) are mounted on the back of the parabola, attached to small 3D-printed brackets.

The pinout is specified in the repository, and you’ll need to refer to the source code to match the correct GPIO assignments.

🔧 Mechanical Assembly

The most time-consuming part is 3D printing the two halves of the parabola.
The two parts are assembled using M3 screws, and I used melt-in brass threaded inserts to secure the mounting holes by heating them into the PLA.

The structure is designed to fit on a standard tripod mount, which gives good mobility and stability.

Power was supplied using a standard USB power bank during testing, but any 5V or 3.3V source should work.