racedayquadsHAPPYMODEL· Motor control
HappyModel CruxF405HD 2-4S F4 AIO 20x20 Flight Controller (w/ 20A 8Bit 4in1 ESC & 2.4GHz ELRS RX)
Manufacturer part no. HAPP-1H70033
Manufacturer part no. HAPP-1H70033
Listed by racedayquads at €74.34. Delivered to France, including shipping, VAT and any customs duty, it comes to about €107.21. Prices last checked on 2026-10-06.
Delivered cost is an estimate for a single item shipped to mainland France; the seller's checkout is authoritative.
| Item | €74.34 |
|---|---|
| Shipping | €15.00 |
| VAT (20%) | €17.87 |
| Total delivered | €107.21 |
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.
CruxF405HD ELRS AIO 3in1 Flight controller built-in UART 2.4G ELRS and 20A ESC
New · sold by usaquadcopter · ships from US
Imported from outside the EU — duties and VAT included in the delivered cost; customs formalities and delays are not
€71.39
billed $79.99
€78.16 delivered
Third-party listings on eBay, matched to this product by its part number or title. Robotitem neither sells nor warrants these items: condition, stock and lead times are the seller's, and a listing disappears once sold. Delivered cost includes the seller's actual shipping.
2 price/stock records since 8/20/2026
| Current | 20 A |
| Weight | 18 g |
The CruxF405HD ELRS AIO flight controller comes with integrated UART 2.4GHz ExpressLRS receiver and 20A Blheli_s ESC(Bluejay firmware pre-installed) which could support 2-4s battery. Bigger Mosfet could support high to 20A currents would be better for 2-4S toothpick drone or long range FPV drone. Reserved 6 pin socket for DJI HD equipment plug and play. It’s a great solution of build HD digital FPV drone . Check out our other AIO flight controllers, and the rest of our Happymodel offerings. NOTES: If upgrade firmware to betaflight 4.4.x , need to add custom Defines “GYRO_SPI_ICM42688P ACC_SPI_ICM42688P” from build configuration of Betaflight configurator otherwise gyro may not be recognized. Features Integrated UART 2.4GHz ExpressLRS receiver and 20A Blheli_s ESC(Bluejay firmware pre-installed) Big Mosfets that support high 20A currents Great for 2-4S toothpick Reserved 6 pin socket for DJI HD equipment plug & play. Specifications Flight controller MCU: STM32F405RGT6 (168MHZ, 1Mbyte FLASH) GYRO Sensor: ICM42688 (SPI connection) Mount hole size: 20mm*20mm Power supply: 2~4S battery input (DC 8.7V-17.4V) Built-in 20A(each) Blheli_S 4in1 ESC Built-in Serial ExpressLRS 2.4G (Default connected to UART2) Built-in BMP280 Barometer Built-in 8MBp blackbox Built-in voltage meter sensor , voltage meter scale 110 Built-in current meter sensor , current meter scale 470 Flight controller firmware target: BETAFLIGHTF4 4in1 ESC (MCU upgraded to EFM8BB21) Power supply: 2-4S LiPo/LiPo HV (7v/17v) Currents: 20A continuous peak 25A (5 seconds) Support BLHeliSuite programmable Factory firmware: Bluejay 0.19.2 Firmware target: F_H_40_48_v0.19.2 Default protocol: DSHOT150/DSHOT300/DSHOT600 UART ExpressLRS 2.4GHz Receiver Packet Rate option: 25Hz/50Hz/150Hz/250Hz/500Hz RF Frequency: 2.4GHz Antenna plug: IPEX Telemetry output Power: <12dBm Receiver protocol: CRSF Default firmware version: ExpressLRS V3.0.1 Voltage and Amperage meters settings Voltage meter scale setting 110 Amperage meter s
