Description

Hummingbird 305 Flight Controller F722 ICM42688 with Diversity ELRS 2.4 Receiver 30x30

The Hummingbird 305 Flight Controller F722 ICM42688 with Diversity ELRS 2.4 Receiver 30x30 is a high-performance flight controller tailored for 5” and larger builds, offering cutting-edge processing, integrated diversity ExpressLRS receiver, and compatibility with both Betaflight and iNAV firmware.

At the heart of the board is the STM32F722 MCU running at 216MHz, delivering exceptional responsiveness for advanced control algorithms. Paired with the industry-recommended ICM-42688 gyro powered by its own independent LDO, the flight controller ensures ultra-clean signal acquisition and minimal noise.

Designed with triple independent BECs — 10V 2A and dual 5V 2A regulators — the board provides stable and reliable power for your HD VTX, GPS, LEDs, and other peripherals. It also includes the high-precision SPL06-001 barometer and a TCXO oscillator for improved GPS lock and stable sensor readings in extreme environments.

One of the biggest highlights is the integrated 2.4GHz ExpressLRS Diversity Receiver, featuring dual antennas and onboard LNA boost. Enjoy rock-solid control link quality with reduced latency, maximum signal integrity, and less wiring hassle.

Whether you’re flying analog or digital, the Hummingbird 305 has you covered. Analog pilots benefit from the built-in NBD7456 chip for OSD, while digital users will appreciate the plug-and-play support for DJI FPV systems via UART4.

Key Features

• STM32F722 MCU @ 216MHz

• ICM-42688 gyro with dedicated LDO

• Triple Independent BEC: 10V 2A + 5V 2A x2

• Built-in ExpressLRS 2.4GHz Diversity Receiver withTCXO oscillator MHF3 connector
  Firmware target name(NewBeeDrone Diversity 2.4Ghz RX V2)

• SPL06-001 barometer 

• Analog OSD via onboard NBD7456 chip

• SD card slot for Blackbox logging

• 4x UARTs + 1x I2C port for expanded connectivity

• LED and buzzer pads ready

• USB-powered 4.5V pad available

• Analog video in/out pads on board

• Supports Betaflight and iNAV firmware

UART Assignment

• UART6: Internal ELRS RX

• UART4: DJI HD VTX

• UART1 RX: SBUS input

• UART2 & UART5: Free

• I2C port: Ready for compass or other I2C devices

Power Rails with Status LEDs

• VBAT / 10V / 5Va / 5Vb / 3.3V power lines monitored

• FC Status indicator light onboard

Specifications

• Mounting: 30.5x30.5mm (M3)

• Dimensions: 36x36mm

• Weight: [TBD, e.g. 9.8g] (excluding grommets)

• Input Voltage: 3–8S LiPo

• Firmware: Betaflight / INAV

Perfect for pilots who want:

• Integrated ELRS without external receivers

• Clean analog or digital video feed

• Powerful 30x30 FC for freestyle or long-range missions

• iNAV support for GPS and barometer-assisted flights

User Guide: Link

Wire Diagram:

Include:

1x Hummingbird 305 Flight Controller F722 ICM42688 with Diversity ELRS 2.4 Receiver 30x30
2x 2.4G ELRS Antenna with MHF3 Connector
5x Grommets
1x DJI O3/O4 plug and play cable 100mm
1x SH1.0 3Pin 100mm for analog camera 
3x SH1.0 4Pin 100mm for UART Port
1x SH1.0 6Pin 100mm for HD VTX
3x 120mm silicon wire 4color cable 

1x SH1.0 8Pin 96mm for FC to ESC