Hummingbird 305 F722 is a high-performance flight controller with an integrated 2.4GHz ELRS receiver. The board is compatible with both Betaflight and iNav firmware, making it ideal for 5" and larger drones powered by 3–8S LiPo batteries. It features a 30.5×30.5 mm mounting pattern.
The flight controller is built around an STM32F722 processor paired with an ICM42688 gyro and an SPL06 barometer for altitude measurement. It includes a 10V/2A BEC for powering video transmitters and a 5V/2A BEC for GPS modules or LEDs. The board features an OSD chip for analog video and a dedicated connector for digital video transmitters. A major advantage is the built-in 2.4GHz ELRS receiver with dual antennas, simplifying the drone build. For peripherals, the board offers 4 UARTs and an I2C bus. Blackbox data are stored on a microSD card. The board is factory-coated with a protective layer for water resistance.