3 MERAKRCF405 flight control is carefully optimized layout, so that users can be more concise,convenient wiring,.For ensure a good flight experience ,we use of high-performance MPU6000 gyroscope. After a long flight verification test, the flight control ensures stable flight performance. For details of flight control, please visit MERAK RC website:(http://www.merakrc.com)
7 * Processors and Sensors
10 * *OSD:* BetaFlight OSD (AT7456E)
11 * Blackbox: FLASH W25Q128 (16MB)
15 * 5 UARTs (UART5 support SerialRC)
17 * Stable voltage regulation,9V/2A DCDC BEC for VTX/camera etc.5V/2A DCDC BEC for FC/WS2812 etc.
19 * Independent camera control.
23 ### All uarts have pad on board
25 | Value | Identifier | RX | TX | Notes |
26 | :---: | :--------: | :--: | :--: | :------: |
27 | 1 | USART1 | PA10 | PA9 | |
28 | 2 | USART2 | PA3 | PA2 | |
29 | 3 | USART3 | PB11 | PB10 | |
30 | 4 | USART4 | PC11 | PC10 | |
31 | 5 | USART5 | PD2 | PC12 | Rx input |
35 | Value | Identifier | function | pin | Notes |
36 | :---: | :--------: | :------: | :--: | :---: |
37 | 1 | LED0 | LED | PC13 | |
38 | 2 | BEEPER | BEEP | PC14 | |
40 ### VBAT input, Current input, Analog RSSI input
42 | Value | Identifier | function | pin | Notes |
43 | :---: | :--------: | :------: | :--: | :---: |
44 | 1 | ADC1 | VBAT | PC2 | |
45 | 2 | ADC1 | CURRENT | PC1 | |
46 | 3 | ADC1 | RSSI | PC3 | |
48 ### PWM Input & PWM Output & LED strip & Camera control
50 | Value | Identifier | function | pin | Notes |
51 | :---: | :--------: | :---------: | :--: | :---: |
52 | 1 | TIM8_CH3 | PPM | PC8 | |
53 | 2 | TIM3_CH1 | Motor1 | PC6 | |
54 | 3 | TIM3_CH2 | Motor2 | PC7 | |
55 | 4 | TIM5_CH1 | Motor3 | PA0 | |
56 | 5 | TIM5_CH2 | Motor4 | PA1 | |
57 | 6 | TIM3_CH3 | Motor5 | PB0 | |
58 | 7 | TIM1_CH3N | Motor6 | PB1 | |
59 | 8 | TIM4_CH3 | LED strip | PB8 | |
60 | 9 | TIM11_CH1 | CAM Control | PB9 | |
62 ### Gyro & ACC MPU6000
64 | Value | Identifier | function | pin | Notes |
65 | :---: | :--------: | :------: | :--: | :------------: |
66 | 1 | SPI2 | SCK | PB13 | MPU6000 |
67 | 2 | SPI2 | MISO | PB14 | MPU6000 |
68 | 3 | SPI2 | MOSI | PB15 | MPU6000 |
69 | 4 | SPI2 | CS1 | PB12 | MPU6000_CS |
70 | 5 | IO | INT2 | PC4 | MPU6000_INT |
74 | Value | Identifier | function | pin | Notes |
75 | :---: | :--------: | :------: | :--: | :---: |
76 | 1 | SPI3 | SCK | PB3 | |
77 | 2 | SPI3 | MISO | PB4 | |
78 | 3 | SPI3 | MOSI | PB5 | |
79 | 4 | SPI3 | CS | PA15 | |
83 | Value | Identifier | function | pin | Notes |
84 | :---: | :--------: | :------: | :--: | :---: |
85 | 1 | SPI1 | SCK | PA5 | |
86 | 2 | SPI1 | MISO | PA6 | |
87 | 3 | SPI1 | MOSI | PA7 | |
88 | 4 | SPI1 | CS | PA4 | |