Happymodel ExpressLRS ELRS F4 5A 5-in-1 AIO FC w/ 2.4G Rx
£52.90 Inc. VAT
The first AIO 5-in-1 whoop flight controller with a built-in 2.4GHz ELRS receiver.
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The Happymodel ExpressLRS F4 is the world’s first AIO 5-in-1 whoop flight controller with a built-in high-performance 2.4GHz ELRS receiver. This F4 flight controller has a built-in 5A ESC, 5.8GHz VTX, and OSD. It is made for 1S long-range and tiny whoops.
This FC integrates an SPI-controlled 2.4GHz ExpressLRS receiver, Dshot protocol 4-in-1 ESC, 5.8GHz 40ch video transmitter, and Betaflight OSD. Ultra-small size and ultra-stable remote control range can improve the range of the original SPI receiver. The 2.4GHz ExpressLRS receiver is equipped with the SX1280 radio frequency chip with high sensitivity, high packet rate, and low latency, making this flight controller the one that all Race/Freestyle pilots need! Suitable for use in Tiny Whoop or Toothpick Freestyle, and can also be used in 1S ultra-lightweight Nano Long Range platform.
Features:
- 2.4GHz ExpressLRS receiver is equipped with the SX1280 radio frequency chip with high sensitivity, high packet rate, and low latency
- Onboard SPI-controlled 2.4GHz ExpressLRS receiver
- Ultra-small size and ultra-stable remote control range
- Onboard Voltage and Amperage meters
- World’s first 5-in1 AIO FC w/ Receiver
- 5.8GHz 40ch video transmitter
- Dshot protocol 4-in-1 ESC
- Onboard 4-in-1 ESC
- F4 Flight Controller
- Betaflight OSD
More Info HERE
Note: Do not allow the antenna plug to touch the Motor soldering pins, as it may burn the ESC.
ELRS 2.4GHZ RECEIVER
- Bind with: Happymodel ES24TX, ES24TX Lite, ES24TX Slim, and DIY 2.4GHz ELRS TX module(need to flash the same version ELRS firmware)
- Packet Rate option: 25Hz/50Hz/150Hz/250Hz/500Hz
- Receiver protocol: SPI ExpressLRS
- Telemetry output Power: <12dBm
- Antenna: SMD antenna
- RF Frequency: 2.4GHz
F4 FC
- Built-in 5V 1A BECFlight controller firmware target: CRAZYBEEF4SX1280
- Built-in 5A(each) Blheli_S 4in1 ESC Dshot600 ready
- MCU:STM32F411CEU6 (100MHZ, 512K FLASH)
- Power supply: 1S battery input (DC 2.9V-4.35V)
- Built-in SPI ExpressLRS 2.4GHz receiver
- Sensor: MPU-6000(SPI connection)
- Built-in Betaflight OSD(SPI Control)
- Original whoop size compatible
- Built-in 5.8G VTX
VTX
- Frequency: 5.8GHz 5bands 40 channels (include Race band) Smart audio ready
- Output power: 25mw~200mw switchable
- Current consumption: 300mA(type)
- Input voltage: 3.3V 5.5V
- Frequency: 40CH
ESC
- Power supply: 1S LiPo/LiPo HVCurrent: 5A continuous peak 6A (3 seconds)
- Factory firmware: O_H_5_REV16_8.HEX
- Support BLHeliSuite programmable
- MCU upgraded to EFM8BB21
- Default protocol: DSHOT600
VOLTAGE METERS
- Amperage meter scale setting 1175
- Voltage meter scale setting 110
Included:
- 1x Happymodel ExpressLRS F4 5A 5-in-1 AIO FC w/ Built-in 2.4GHz Rx
- 1x Connecting Wire
- 1x Dipole Antenna
- 4x Damping Balls
- 1x 3-Pin Wire
- 5x Screws
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SHIPPING & DELIVERY
We are based in the UK and ship to most destinations worldwide.
We dispatch orders during the times shown on our Dispatch Schedule. Orders placed before the daily dispatch cutoff will ship the same day (subject to stock availability). Orders placed after the cutoff will ship on the next scheduled dispatch day.
A confirmation email is sent once your order has been packed. If you need to amend your order, please contact us as soon as possible — once shipped, we’re unable to make changes.
We work with trusted delivery partners including Royal Mail, DHL, UPS, Fedex and Parcelforce. If you have a delivery requirement or would like to arrange collection, please get in touch.
Next Dispatch: Today
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Shipping to the UK
- Order before the daily dispatch cutoff for same day dispatch.
- FREE delivery available on qualifying orders over £99 (under 1kg).
For small, low-value orders, Royal Mail First Class is our most economical option. Royal Mail Tracked 24 is the most popular choice, offering full tracking and flexible delivery options. For guaranteed next working day delivery, we recommend Royal Mail Special Delivery.
Royal Mail delivers to residential addresses Monday to Saturday, while courier services (including DHL) typically deliver Monday to Friday.
International Postage
- USA orders: Import duties and taxes are prepaid by us — no additional customs charges on delivery.
- Other destinations: Customs duties or import taxes may apply and are the responsibility of the recipient.
Smaller, lower-value orders may be sent via Airmail or tracked postal services. Economy road and express air courier options are available depending on destination. For faster delivery, we recommend express air courier services such as DHL Express, which typically deliver within 1–2 working days across Europe and a few working days for most other destinations.
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