Product overview
The Happymodel Crazybee F4 Pro V2.0 1-2S brings flight control and four-channel motor control onto a 28.5 × 28.5 mm board weighing 4.3 g. Its STM32F411CEU6 processor runs at 100 MHz with 512K flash, paired with an MPU-6000 sensor connected over SPI. Integration provisions include a Betaflight OSD, multiple serial ports, voltage detection and a current meter with a maximum measurement of 28 A and scale setting of 1175. A built-in 5 V, 1 A buck/boost regulator incorporates an LC filter.
Receiver selection determines the radio interface: the Frsky version offers SPI reception with telemetry and switchable D8/D16, while the Flysky version provides SPI reception with telemetry and AFHDS/AFHDS-2A compatibility. The DSMX version integrates a serial DSM2/DSMX satellite receiver using RX2 by default; the No RX version supports external serial-bus receivers. Power is limited to 1–2S input at DC 3.5–8.7 V. The onboard ESC specifies 5 A continuous and 6 A peak for three seconds. Supplied hardware comprises the controller, three power cables, and shock-absorbing rubber and screws.
Specifications
| Specification | Value & conditions |
|---|---|
| Product | Happymodel Crazybee F4 Pro V2.0 1-2S flight controller for Mobula7. |
| Flight controller processor | STM32F411CEU6; 100 MHz; 512K flash. |
| Motion sensor | MPU-6000 with SPI connection. |
| Board dimensions | 28.5 × 28.5 mm. |
| Weight | 4.3 g. |
| Flight controller power supply | DC 3.5–8.7 V.1–2S battery input. |
| Integrated motor control | Built-in BLHeli_S four-in-one ESC; 5 A each; DSHOT600 ready. |
| ESC processor | EFM8BB21. |
| ESC power supply | 1–2S LiPo/LiPo HV (3.5 V/8.7 V).1–2S LiPo or LiPo HV battery. |
| ESC current rating | 5 A continuous; 6 A peak for 3 seconds.Peak current duration: 3 seconds. |
| ESC programming | Programmable through BLHeliSuite. |
| ESC firmware and default protocol | S_H_50_REV16_7.Hex firmware; DSHOT600 default protocol.Factory ESC configuration. |
| Frsky receiver | Built-in SPI Frsky receiver with telemetry; switchable D8/D16.Frsky version. |
| Flysky receiver | Built-in SPI Flysky receiver with telemetry; AFHDS/AFHDS-2A compatible.Flysky version. |
| DSM2/DSMX receiver | Built-in serial-based DSM2/DSMX-compatible satellite receiver.DSMX version; RX2 used by default for the receiver. |
| External receiver support | Supports external serial-bus receivers including xm+, Crossfire, S-FHSS, DSM2/DSMX and Ibus.No RX version. |
| On-screen display | Built-in Betaflight OSD with SPI control. |
| Current measurement | Built-in current meter sensor; maximum up to 28 A; scale setting 1175.Current meter scale set to 1175. |
| Regulated power output | Built-in 5 V, 1 A buck/boost regulator with LC filter. |
| Voltage monitoring | Built-in voltage detection. |
| ESC passthrough | BLHeli_S passthrough ready. |
| Serial connectivity | Multiple serial ports supported. |
| Integration application | Intended for integration into brushless whoop drones, with compatibility described as covering almost all such drones. |
| Frsky flight firmware | Betaflight_4.0.0_CRAZYBEEF4FR.hex.Frsky version. |
| Flysky flight firmware | Betaflight_4.0.0_CRAZYBEEF4FS.hex.Flysky version. |
| DSM2/DSMX flight firmware | Betaflight_4.0.0_CRAZYBEEF4DX.hex.DSM2/DSMX version. |
| No RX flight firmware | Betaflight_4.0.0_CRAZYBEEF4DX.hex.No RX version. |
| Included equipment | One CrazybeeF4 PRO flight controller, three power cables, and one set of shock-absorbing rubber and screws.Supplied package. |
