HummingBird V4 AIO Flight Controller ExpressLRS(ELRS)2.4g with 25-400mw VTX

Package Includes:

1x HummingBird V4 AIO Flight Controller ExpressLRS(ELRS)2.4g with 25-400mw VTX

Specifications:

MCU: STM32F411

GYRO：BMI270

VTX:  25mw for Racing/ 100mw and up to 400mw SmartMax temperature control with BeeTX 5.8Ghz Antenna

ESC: 12A BLHeliS pre-flashed with Bluejay 0.19.2 Target: O-H-10 48kHz

ESC Connector: JST-1.0 3Pin

OSD: NBD7456 Graphical OSD compatible with Betaflight OSD

Receiver: 2.4G Antenna with MHF3 connector

Flight Controller Weight: 4.57g(Include antennas and battery connector)

Flight Controller Size: Outer dimensions: 29x29x7.6mm

Flight Controller Holes: 25.5x25.5mm

Battery input: 1S Only

Uart1: free

Uart2: free

Power Plug: NewBeeDrone NX69 Connector

SPI ELRS3.x receiver (Binding instruction: power on the drone, push the bind button under

the flight controller to get into bind mode. If your remote control is not ELRS3.x or above version. You will need to update your remote controller ELRS to 3.x version because betaflight 4.5 will no longer support any lower version of 3.0)
Please read through the SPI base information if you have difficulty with binding

Hummingbird V4 Betaflight firmware: 

Betaflight_HMBV4 2025.12 SPI Elrs 3.X

Betaflight_HMBV4 2025.12 SPI Elrs 4.X

* Amateur (HAM) radio license is required for operation on amateur radio channels or higher power levels. The integrated VTX ships with default, region-compliant channels and power settings enabled.