| Brand | Happymodel |
|---|---|
| Model | Crazybee F4 V3.1 |
| MCU | STM32F411CEU6 |
| Firmware | Betaflight |
| Gyro / IMU | MPU-6000 |
| Min cells | 2S |
| Max cells | 4S |
| Motor outputs | 4 |
| UARTs | 1 |
| Buses | UART, SPI |
| BEC outputs | 5V |
| BEC 5V current | 1A |
| USB port | Other |
| Mounting pattern | 25.5x25.5 |
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