Detailed Project Description :

The ESP32-S3 Flight Controller Board is a custom-designed, open-source flight control hardware developed for quadcopters, Hexacopters ,robotics platforms, and experimental UAV systems. At its core, the board uses a bare ESP32-S3 module, featuring a dual-core Xtensa LX7 processor with native USB support, enabling direct firmware flashing and debugging without external programmers. The design strictly follows esp-fc recommended pin mappings, ensuring seamless compatibility with esp-fc firmware and Betaflight configurators.

For motion sensing and altitude estimation, the board integrates an MPU6050 6-axis IMU and a BMP180 barometric pressure sensor, both connected via I2C with proper pull-ups. This sensor combination enables stable attitude estimation, flight stabilization, and altitude control. The power subsystem includes a TP4056 Li-ion charging module with protection, a 4.2 V to 5 V boost converter for stable MCU operation, and an on-board 3.3 V regulator for logic and sensors, supporting USB or battery-powered operation.

The controller supports four dedicated motor outputs optimized for quad-rotor configurations, along with a JST-I2C expansion connector for adding custom peripherals such as GPS, magnetometers, or telemetry modules. Complete Gerber files, 3D models, schematics, and documentation are provided, allowing easy manufacturing through services like PCBWay.Released under the Apache-2.0 open-source license, this project encourages community collaboration, modification, and real-world deployment - Especially for ROV's and UAV's

Here is the Github Repo - Link

Here is the Grabcad (3D MODEL) - Link