Descriptions
This SpeedyBee F4 AIO board integrates the Bluetooth module, with SpeedyBee App, we can set the FC parameter via mobile device.It runs Betaflight, with Built-in LC-Filter for 5V and 9V, and no pinned-connectors – all direct solder for optimal durability on top side. It has the current sensor and ESC power output.
Hardware Features
- MCU: STM32F405
- IMU: MPU6000
- OSD: BetaFlight OSD w/ AT7456E chip
- BLE Module: inner connect to UART5 for remote setting with SpeedyBee App or other similar apps
- BlackBox: 16Mb onboard dataflash
- Current Sensor: 200A(Scale 608)
- Power input: 3s - 6s Lipo
- Power output: 4.5V _ 1 , 3.3V _ 1, 5V _ 3 , 9V _ 1
- Cam And VTX power output: Built-in LC-Filter for 5V and 9V
- ESC power output: 4 * VCC output
- UART: UART Pads * 3(UART1, UART3, UART4)
- UART2 for Receiver: Built in inverter of RX2 for SBUS input through SBUS pad, RX2 pad used for PPM, DSM2, DSMX, IBUS
- RSSI input: RSSI input solder pad
- I2C: Used for external GPS, Barometer module
- Buzzer: Buz- and 5V pad used for 5V Buzzer
- ESC signal: s1 - s7
- LED pin: Used for WS2812 LED
- Boot button: Used to easy enter DFU mode
All uarts have pad on board
| Value | Identifier | RX | TX | Notes |
|---|
| 1 | USART1 | PA10 | PA9 | PB7 FOR SBUS IN(inverter built-in) |
| 2 | USART2 | PA3 | PA2 | PA3 for SBUS signal through SBUS pad, and normally connect to RX2 pad for other types receiver |
| 3 | USART3 | PC11 | PC10 | USE FOR GPS |
| 4 | USART4 | PA1 | PA0 | PA0 FOR RSSI/FPORT/TEL etc |
| 5 | USART5 | PD2 | PC12 | PAD |
I2C, use for Barometer or compass
| Value | Identifier | function | pin | Notes |
|---|
| 1 | I2C1 | SDA | PB7 | |
| 2 | I2C1 | SCL | PB6 | |
Buzzer/LED output
| Value | Identifier | function | pin | Notes |
|---|
| 1 | LED0 | LED | PB9 | |
| 2 | BEEPER | BEE | PC13 | |
| Value | Identifier | function | pin | Notes |
|---|
| 1 | ADC1 | VBAT | PC2 | |
| 2 | ADC1 | CURR | PC1 | |
| 3 | ADC1 | RSSI | PC3 | |
7 PWM Outputs
| Value | Identifier | function | pin | Notes |
|---|
| 1 | TIM8_CH1 | OUPUT1 | PC6 | DMA1_Stream7 |
| 2 | TIM8_CH2 | OUPUT2 | PC7 | DMA2_Stream2 |
| 3 | TIM8_CH3 | OUPUT3 | PC8 | DMA2_Stream6 |
| 4 | TIM8_CH4 | OUPUT4 | PC9 | DMA2_Stream1 |
| 5 | TIM2_CH1 | OUPUT5 | PA15 | DMA2_Stream4 |
| 6 | TIM1_CH1 | OUPUT6 | PA8 | DMA1_Stream2 |
| 7 | TIM4_CH3 | OUPUT7 | PB8 | DMA1_Stream5 |
| Value | Identifier | function | pin | Notes |
|---|
| 1 | TIM5_CH4 | PPM | PA3 | |
| 2 | TIM4_CH1 | LED Strip Signal Input | PB6 | |
Gyro & ACC(MPU6000)
| Value | Identifier | function | pin | Notes |
|---|
| 1 | SPI1 | SCK | PA5 | |
| 2 | SPI1 | MISO | PA6 | |
| 3 | SPI1 | MOSI | PA7 | |
| 4 | SPI1 | CS | PB11 | |
OSD(AT7456E)
| Value | Identifier | function | pin | Notes |
|---|
| 1 | SPI2 | SCK | PB13 | |
| 2 | SPI2 | MISO | PB14 | |
| 3 | SPI2 | MOSI | PB15 | |
| 4 | SPI2 | CS | PB10 | |
16Mbyte onboard flash
| Value | Identifier | function | pin | Notes |
|---|
| 1 | SPI3 | SCK | PB3 | |
| 2 | SPI3 | MISO | PB4 | |
| 3 | SPI3 | MOSI | PB5 | |
| 4 | SPI3 | CS | PC0 | |