okalachev/flix

Health v2 · maintenance only

Flags: no_license

Adoption not part of the score

1228 stars · 214 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

Flix is an open-source ESP32-based quadcopter flight controller and firmware built from scratch in Arduino C++, designed for education and research. It includes MAVLink communication over Wi-Fi/ESP-NOW, a Gazebo simulator, a Python scripting library, and an accompanying flight-control textbook.

Use cases

• build a quadcopter from scratch for a robotics course
• teach flight control theory with a hands-on drone
• script automatic drone flights in Python
• simulate quadcopter firmware in Gazebo before flying
• control a drone with a USB gamepad or smartphone
• learn how flight controller firmware works internally

When to choose

• you want an educational, easy-to-read quadcopter firmware under 2k lines
• you need a cheap drone built from general-purpose components for research or teaching
• you want MAVLink-based control over Wi-Fi with Python scripting
• you want to test flight code in simulation with the same Arduino source

When to avoid

• you need production-grade position control or GPS navigation (still in development)
• you need a certified, safety-critical autopilot for commercial UAVs
• you require long-range radio control rather than Wi-Fi/ESP-NOW
• you need a mature ecosystem like PX4 or ArduPilot with extensive hardware support

Facets

application · maturity active

embedded robotics simulation developer-tools robotics education embedded-systems hardware embedded iot cpp python quadcopter flight-controller esp32 mavlink drone uav autopilot arduino gazebo control-theory linux

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For agents

markdown · JSON · MCP: product_card(name="okalachev/flix")