3 This board use the STM32F405RGT6 microcontroller and have the following features:
4 * 1024K bytes of flash memory,192K bytes RAM,168 MHz CPU/210 DMIPS
6 * The 16M byte SPI flash for data logging
7 * USB VCP and boot select button on board(for DFU)
8 * Stable voltage regulation,9V/1.5A DCDC BEC for VTX/camera etc.And could select 5v/9v with pad
9 * Serial LED interface(LED_STRIP)
10 * VBAT/CURR/RSSI sensors input
11 * Suppose IRC Tramp/smart audio/FPV Camera Control/FPORT/telemetry
12 * Supports SBus, Spektrum1024/2048, PPM. No external inverters required (built-in).
13 * Supports I2C device extend(baro/compass/OLED etc)
16 ### All uarts have pad on board
17 | Value | Identifier | RX | TX | Notes |
18 | ----- | ------------ | -----| -----| ------------------------------------------------------------------------------------------- |
19 | 1 | USART1 | PA10 | PB6 | USE smartport/FPORT/TEL etc |
20 | 2 | USART3 | PB11 | PB10| FOR SBUS IN(inverter build in) |
21 | 3 | USART4 | PA1 | PA0 | PAD USE FOR TRAMP/smart audio |
22 | 4 | USART5 | PD2 | / | PAD ESC sensor |
23 | 5 | USART6 | PC7 | PC6 | PAD USE FOR GPS/BLE etc |
26 ### I2C with GPS port together.Use for BARO or compass etc
27 | Value | Identifier | function | pin | Notes |
28 | ----- | ------------ | ---------| -------| ------------------------------------------------------------------------------------- |
29 | 1 | I2C1 | SDA | PB9 | with GPS outlet
30 | 2 | I2C1 | SCL | PB8 | with GPS outlet
34 | Value | Identifier | function | pin | Notes |
35 | ----- | ------------ | ---------| -------| ------------------------------------------------------------------------------------- |
36 | 1 | LED0 | LED | PC14 |
37 | 2 | BEEPER | BEE | PC13 |
40 ### VBAT input with 1/10 divider ratio,Current signal input,Analog/digit RSSI input
41 | Value | Identifier | function | pin | Notes |
42 | ----- | ------------ | ----------| ------| ------------------------------------------------------------------------------------- |
43 | 1 | ADC1 | VBAT | PC3 | DMA2_Stream0
44 | 2 | ADC1 | CURR | PC2 | DMA2_Stream0
45 | 3 | ADC1 | RSSI | PC1 | DMA2_Stream0
48 ### 8 Outputs, 1 PPM input
49 | Value | Identifier | function | pin | Notes |
50 | ----- | ------------ | ----------| ------| ------------------------------------------------------------------------------------- |
51 | 1 | TIM10_CH1 | PPM | PB7 | PPM
52 | 2 | TIM3_CH3 | OUPUT1 | PB0 | DMA1_Stream7
53 | 3 | TIM3_CH4 | OUPUT2 | PB1 | DMA1_Stream2
54 | 4 | TIM2_CH4 | OUPUT3 | PA3 | DMA1_Stream6
55 | 5 | TIM2_CH3 | OUPUT4 | PA2 | DMA1_Stream1
56 | 6 | TIM3_CH2 | OUPUT5 | PB5 | DMA1_Stream5
57 | 7 | TIM4_CH2 | OUPUT6 | PB7 | DMA1_Stream3
58 | 8 | TIM8_CH4 | OUPUT7 | PC9 | DMA2_Stream7
59 | 9 | TIM3_CH1 | OUPUT8 | PB4 | DMA1_Stream4
60 | 10 | TIM8_CH3 | LED | PC8 | DMA2_Stream2 LED_STRIP
61 | 11 | TIM1_CH2 | PWM | PA9 | FPV Camera Control(FCAM)
64 ### Gyro & ACC ICM20689
65 | Value | Identifier | function | pin | Notes |
66 | ----- | ------------ | ---------| -------| ------------------------------------------------------------------------------------- |
67 | 1 | SPI1 | SCK | PA5 |
68 | 2 | SPI1 | MISO | PA6 |
69 | 3 | SPI1 | MOSI | PA7 |
70 | 4 | SPI1 | CS | PC4 |
73 | Value | Identifier | function | pin | Notes |
74 | ----- | ------------ | ---------| -------| ------------------------------------------------------------------------------------- |
75 | 1 | SPI3 | SCK | PC10 |
76 | 2 | SPI3 | MISO | PC11 |
77 | 3 | SPI3 | MOSI | PC12 |
78 | 4 | SPI3 | CS | PB14 |
81 | Value | Identifier | function | pin | Notes |
82 | ----- | ------------ | ---------| -------| ------------------------------------------------------------------------------------- |
83 | 1 | SPI3 | SCK | PC10 |
84 | 2 | SPI3 | MISO | PC11 |
85 | 3 | SPI3 | MOSI | PC12 |
86 | 4 | SPI3 | CS | PB3 |
89 | Pin | Function | Notes |
90 | --- | -------------- | -------------------------------------------- |