racedayquadsHAPPYMODEL
HappyModel CrossF4 F411 1-2S 5A 8Bit AIO Whoop Flight Controller - ELRS 2.4GHz
Manufacturer part no. 20544
$64.25≈ 55.68 €
Price summary
Listed by racedayquads at €55.68. Delivered to France, including shipping, VAT and any customs duty, it comes to about €84.82. Prices last checked on 2026-09-16.
Delivered cost is an estimate for a single item shipped to mainland France; the seller's checkout is authoritative.
Availability unknown
Estimated landed cost
| Item | €55.68 |
|---|---|
| Shipping | €15.00 |
| VAT (20%) | €14.14 |
| Total delivered | €84.82 |
Estimate for a single item delivered to mainland France, shipped from outside the EU: customs duty and clearance fees may apply and are charged by the carrier.
Specifications (automatically extracted)
Electrical
| Current | 5 A |
Mechanical
| Weight | 14 g |
Description
HappyModel continues to impress with yet another fantastic AIO for whoop applications! Check out the HappyModel CrossF4 1-2S AIO Whoop Flight Controller (F4 FC / 5A 4in1 ESC) - Featuring F411 Flight Controller, with a built in serial UART ELRS for V3.0. Browse the rest of our Whoop AIO Boards and all of our Happy Model products! Features BMI270 IMU (SPI connection) Serial UART ELRS V3.0 receiver Built-in 5V 1A BEC Specifications: AIO FC Firmware target: CRAZYBEEF4DX4.3.2 MCU:STM32F411CEU6 (100MHz, 512K FLASH) Sensor: BMI270(SPI connection) Power supply: 1-2S Lipo Lihv battery input (DC 2.8V~8.7V) Built-in 5A(each) Blheli_S 4in1 ESC Dshot300 ready Built-in Betaflight OSD(SPI Control) Built-in UART ExpressLRS 2.4Ghz receiver(Default firmware ExpressLRS v3.0.1) Built-in 5V 1A BEC Built-in voltage detection and current sensor Built-in Onboard flash 16Mb for Blackbox Onboard 4in1 ESC MCU: EFM8BB21 Power supply: 1-2S LiPo/LiPo HV (2.8v~8.7v) Currents: 5A continuous peak 6A (5 seconds) Support BLHeliSuite programmable Default Factory firmware: S_H_50_REV16_8.HEX Support ESC Protocol: DSHOT150/DSHOT300/DSHOT600 Onboard UART ExpressLRS 2.4GHz Receiver Packet Rate: 25Hz/50Hz/150Hz/250Hz/500Hz RF Frequency: 2.4GHz Antenna: enameled copper wire 31mm length Telemetry output Power: <12dBm Receiver protocol: CRSF Default firmware version: ExpressLRS V3.0.1 The same hardware with Happymodel EP1 Could update firmware via ExpressLRS configurator Includes 1x HappyModel CrossF4 F411 1-2S 5A 8Bit AIO Whoop Flight Controller - ELRS 2.4gHz 1x Mounting Hardware 1x Wiring Harness Wiring Diagram & Betaflight Configuration NOTE: Onboard blackbox enable method:-Type the following command to CLI:-set blackbox_device = SPIFLASH-set flash_spi_bus = 2-resource FLASH_CS 1 a14 Pay attention: Bind procedure is the same like Happymodel EP1/EP2 receiver, as you need to upgrade your ExpressLRS TX module to V3.X version first. Alternative-Binding-Method-for-UART-Based-ELRS-RX
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