|
| 1 | +# CrazyBee F4 FR Pro |
| 2 | + |
| 3 | + |
| 4 | + |
| 5 | +## Description |
| 6 | +CrazyBee F4 FR Pro flight controller is a Highly integrated board(Receiver/4in1 ESC/OSD/Current Sensor) for 1~2S Whoop brushless racing drone. |
| 7 | + |
| 8 | +## MCU, Sensors and Features |
| 9 | + |
| 10 | +### Hardware and Features |
| 11 | + - MCU: STM32F411CEU6 (100MHZ, 512K FLASH) |
| 12 | + - IMU: MPU6000 (SPI) |
| 13 | + - OSD: Betaflight OSD |
| 14 | + - Battery Voltage Sensor: yes |
| 15 | + - Power supply: 1-2S battery input (DC 3.5-8.7V) |
| 16 | + - Built-in 5V 1A Buck / Boost with LC filter |
| 17 | + - Integrated Current sensor:Max 28A,Current meter scale set to 1175 |
| 18 | + - Built-in SPI Frsky receiver with telemetry(D8/D16 switchable) |
| 19 | + - Integrated inverter for sbus(when use external rx) in UART1 RX |
| 20 | + - Integrated 4x Blheli_s ESC: Max 5A per ESC(EMF8BB21F16G) |
| 21 | + - ESC Connector: 3-pin, PicoBlade 1.25mm pitch |
| 22 | + - Beeper output: 2-pin, soldering pad |
| 23 | + - 4 Rx Indicating LEDs: 2 x red and 2 x white |
| 24 | + - Board size: 28.5 * 28.5mm |
| 25 | + |
| 26 | +## Resource mapping |
| 27 | + |
| 28 | +| Label | Pin | Timer | DMA | Default | Note | |
| 29 | +|----------------------------|------|-------|-----|-------------|----------------------------------| |
| 30 | +| MPU6000_INT_EXTI | PA1 | | | | | |
| 31 | +| MPU6000_CS_PIN | PA4 | | | | SPI1 | |
| 32 | +| MPU6000_SCK_PIN | PA5 | | | | SPI1 | |
| 33 | +| MPU6000_MISO_PIN | PA6 | | | | SPI1 | |
| 34 | +| MPU6000_MOSI_PIN | PA7 | | | | SPI1 | |
| 35 | +| OSD_CS_PIN | PB12 | | | | SPI2 | |
| 36 | +| OSD_SCK_PIN | PB13 | | | | SPI2 | |
| 37 | +| OSD_MISO_PIN | PB14 | | | | SPI2 | |
| 38 | +| OSD_MOSI_PIN | PB15 | | | | SPI2 | |
| 39 | +| RX_CS_PIN | PA15 | | | | SPI3 | |
| 40 | +| RX_SCK_PIN | PB3 | | | | SPI3 | |
| 41 | +| RX_MISO_PIN | PB4 | | | | SPI3 | |
| 42 | +| RX_MOSI_PIN | PB5 | | | | SPI3 | |
| 43 | +| RX_GDO0_PIN | PC14 | | | | | |
| 44 | +| BIND_PLUG_PIN | PB2 | | | | | |
| 45 | +| RX_LED_PIN | PB9 | | | | | |
| 46 | +| PWM1 | PB8 | TIM2, CH3 | | | | |
| 47 | +| PWM2 | PB9 | TIM4, CH1 | | | | |
| 48 | +| PWM3 | PA3 | TIM4, CH2 | | | | |
| 49 | +| PWM4 | PA2 | TIM4, CH3 | | | | |
| 50 | +| VBAT_ADC_PIN | PB0 | | | | ADC1 | |
| 51 | +| CURRENT_ADC_PIN | PB1 | | | | ADC1 | |
| 52 | +| BEEPER | PC15 | | | | | |
| 53 | +| UART1 TX | PA9 | | | | | |
| 54 | +| UART1 RX | PA10 | | | | | |
| 55 | +| UART2 TX | PA2 | | | | | |
| 56 | +| UART2 RX | PA3 | | | | | |
| 57 | + |
| 58 | + |
| 59 | +## Manufacturers and Distributors |
| 60 | + |
| 61 | +- Manufacturers: http://www.happymodel.cn/ |
| 62 | +- Distributors: Will add soon... |
| 63 | + |
| 64 | +## Designers |
| 65 | + |
| 66 | +## Maintainers |
| 67 | + |
| 68 | +## FAQ & Known Issues |
| 69 | + |
| 70 | + |
| 71 | + |
| 72 | +FRSKY Version: |
| 73 | +- To bind to your Taranis, you need to be running the non-eu OpenTX version, which allows you to use the required D8 setting to bind to the RX. The factory default BF receiver mode is FRSKY_X, so remember to configure this if needed. |
| 74 | +- FrSky X (8 / 16 channels) and FrSky D (8 channels) work both reliably, including in combination with crash flip / Dshot beacon, as long as the TELEMETRY feature is disabled; |
| 75 | +Basic telemetry information like RSSI and battery voltage will be sent even when the TELEMETRY feature is disabled; |
| 76 | +- On FrSky D, the TELEMETRY feature causes occasional dropouts, depending on how many sensors (BARO, GPS, ...) are enabled, probably due to a timing overrun; |
| 77 | +- On FrSky X, the TELEMETRY feature causes hard lockups due to a bug in the telemetry generation code. |
| 78 | + |
| 79 | + |
| 80 | +## Other Resources |
| 81 | + |
| 82 | +- User Manual: Will add soon... |
| 83 | + |
0 commit comments