Product overview
The Happymodel CrazybeeX v1.0 is an all-in-one flight controller component for building or upgrading brushless whoops. Its 28.5 × 28.5 mm board combines flight control, a four-in-one BLHeli_S ESC, SPI-controlled Betaflight OSD, a Frsky SPI receiver and a 5.8 GHz video transmitter. An STM32F411CEU6 processor and SPI-connected MPU-6000 sensor form the flight control architecture. The integrated 5 V, 1 A BEC and voltage and current detection provide additional power and monitoring functions within the same board.
The onboard receiver supports Frsky D8/D16, while the 25 mW video transmitter offers five bands and 40 channels, including Race band, with SmartAudio support. The ESC configuration uses S_H_90_REV16_7.HEX factory firmware and DSHOT600 by default. Battery input is 1S–2S at DC 2.9–8.7 V. With a 2S battery, 65 mm and 75 mm propellers are incompatible and the recommended maximum is 55 mm. For SBUS integration, IR1 carries inverted RX1, and the two connections cannot be used simultaneously.
Specifications
| Specification | Value & conditions |
|---|---|
| Product type and application | Happymodel CrazybeeX v1.0 all-in-one flight controller for 1S–2S brushless whoops. |
| Board dimensions | 28.5 × 28.5 mm |
| Processor | STM32F411CEU6; 100 MHz; 512K flash |
| Inertial sensor | MPU-6000 with SPI connection |
| Flight controller power input | 1S–2S battery input; DC 2.9–8.7 V |
| Integrated functions | Four-in-one BLHeli_S ESC, SPI-controlled Betaflight OSD, 5.8 GHz VTX, SPI Frsky D8/D16 receiver, 5 V 1 A BEC and voltage detection. |
| Flight controller firmware target | CRAZYBEEF4FR |
| ESC controller and battery support | Onboard four-in-one ESC using EFM8BB21; 1–2S LiPo/LiPo HV power supply. |
| ESC current rating | 5 A per ESC continuously; 6 A peak for 3 seconds.Peak current is specified for 3 seconds. |
| ESC programming | Programmable through BLHeliSuite |
| ESC factory firmware and default protocol | Factory firmware S_H_90_REV16_7.HEX; default protocol DSHOT600. |
| Receiver bus, protocols and channels | SPI bus receiver compatible with Frsky D8/D16; 8/16 channels. |
| Additional receiver protocol support | Frsky_X_LBT (EU-LBT) and Futaba S-FHSSRequires Betaflight 4.0.5 firmware or later. |
| Receiver failsafe | Supported |
| Receiver distance | 100–200 mNo ground interference; transmitter and receiver 1 m above the ground. |
| VTX output power | 25 mW |
| VTX frequency and channels | 5.8 GHz; five bands; 40 channels; includes Race band. |
| VTX input voltage | 3.3V 5.5V |
| VTX current consumption | 300 mATypical consumption. |
| VTX control and power setting | SmartAudio ready; default vtx_power should be set to 2. |
| Voltage and current meter scales | Onboard voltage and current detection; voltage meter scale 110; amperage meter scale 1175. |
| IR1 and RX1 limitation | IR1 provides the inverted RX1 signal for SBUS; RX1 and IR1 cannot be used simultaneously.When connecting an SBUS receiver. |
| Propeller size limitation | Not compatible with 65 mm/75 mm propellers; recommended maximum propeller size is 55 mm.Using a 2S battery. |
| Receiver binding with firmware 3.5.7 | Press the bind button for 1 second; a solid red LED indicates bind mode.Firmware version 3.5.7; USB connected. |
| Receiver binding with firmware 4.0.x | Enter bind_rx_spi; a solid red LED indicates bind mode.Firmware version 4.0.x; USB connected and Betaflight Configurator CLI open. |
| Receiver binding with firmware 4.1.x or 4.2.x | Binding command: bind_rxFirmware version 4.1.x or 4.2.x. |
| Binding indication exception | The red LED may not blink despite successful binding; enter save in the CLI to finish binding.Binding with some Frsky radios using newer ACCESS firmware. |
| SPI receiver mode mappings |
|
| ESC firmware target | S-H-90 |
| Receiver status LED position | OSD chip side |
