ORBITF435 Flight Controller Docs. (betaflight#484)

* Added ORBITF405 board documents

* Updated ORBITF405 documents

* Added ORBITF435 docs

docs/wiki/boards/current/ORBITF435/ORBITF435.mdx

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+---
+sidebar_custom_props:
+  specs:
+    target: ORBITF435
+    mcu: AT32F435
+    imu: ICM42688P
+    osd: AT7456
+    barometer: DPS310 or SPL06
+    blackbox: 16MB and SD Card
+    dimensions: 39x41mm
+    mounting: M4 30.5x30.5mm
+    weight: 8.8g
+---
+
+import Tabs from '@theme/Tabs'
+import TabItem from '@theme/TabItem'
+import SpecGrid from '@site/src/components/SpecGrid'
+
+# ORBITF435
+
+<Tabs>
+
+<TabItem value="specifications" label="Specifications" default>
+
+<SpecGrid>
+
+![Top](./ORBITF435-images/ORBITF435_1.jpg)
+
+</SpecGrid>
+
+## Other Features
+
+- SD Card Slot: Up to 4GB
+- Hardware Inverter: Yes
+- Power input: 2S - 6S LiPo (note: output will be lower than 10V when using 2S).
+- Power output: 3.3V/500mA, 4.5V-5V/2.5A, 10V/3A
+- RSSI input: RSSI input solder pad
+- I2C: Used for external magnetometer (GPS module), Barometer module
+- ESC: 8 pwm pins for motors
+- Buzzer: Buz+ (5V) and Buz- pad used for 5V Buzzer
+
+## Input/Output
+
+- USB Connector: USB Type-C
+- Motor Outputs: 8x
+- UARTs: 6x
+- I2C: Yes
+- SWD: Yes
+- SPI: No
+- 3.3V Output: Yes
+- 4.5V (VBUS) Output: Yes
+- 5V Output: 2.5A
+- 10V Output: 3A
+- Current Sensor: No
+- Analog RSSI Input: Yes
+- LED Strip Output: Yes
+- Buzzer Output: Yes
+
+## Pads
+
+### UARTs
+
+| Name   | Label | Notes                 |
+| ------ | ----- | --------------------- |
+| UART 1 | T1/R1 | Digital VTX Telemetry |
+| UART 2 | T2/R2 | Inverted - SBUS       |
+| UART 3 | R3    | ESC Telemetry         |
+| UART 4 | T4/R4 |                       |
+| UART 5 | T5/R5 |                       |
+| UART 6 | T6/R6 | GPS                   |
+
+### RECEIVER (SBUS + ELRS)
+
+| Name      | Label     | Notes                                         |
+| --------- | --------- | --------------------------------------------- |
+| SBUS      | SBUS (R2) | SBUS/F.port (serialrx_inverted should be OFF) |
+| USART2_TX | T2        |                                               |
+| USART2_RX | R2        |                                               |
+| 4V5       | 4V5       |                                               |
+| GND       | G         |                                               |
+| 3V3       | 3V3       |                                               |
+| RSSI      | RS        | Analog Channel for RSSI                       |
+
+### Power
+
+| Name    | Label | Count | Notes      |
+| ------- | ----- | ----- | ---------- |
+| 3.3V    | 3V3   | 1x    | 500mA max. |
+| 4.5V    | 4V5   | 3x    | 2.5A max.  |
+| 5V      | 5V    | 2x    | 2.5A max.  |
+| 10V     | 10V   | 1x    | 3A max.    |
+| Battery | BAT   | 2x    | 2-6S Input |
+
+### ESC Signal
+
+| Name      | Label | Notes         |
+| --------- | ----- | ------------- |
+| Battery   | BAT   | 2-6S Input    |
+| GND       | G     |               |
+| Current   | C     |               |
+| USART3_RX | T     | ESC Telemetry |
+| Signal 1  | M1    |               |
+| Signal 2  | M2    |               |
+| Signal 3  | M3    |               |
+| Signal 4  | M4    |               |
+| Signal 5  | M5    |               |
+| Signal 6  | M6    |               |
+| Signal 7  | M7    |               |
+| Signal 8  | M8    |               |
+
+### Analog Video
+
+| Name           | Label | Notes          |
+| -------------- | ----- | -------------- |
+| Video In       | CAM   | Camere Input   |
+| Camera Control | CC    | Camera Control |
+| Video Out      | VTX   | OSD output     |
+
+### Buzzer
+
+| Name     | Label | Notes |
+| -------- | ----- | ----- |
+| Buzzer + | BZ+   |       |
+| Buzzer - | BZ-   |       |
+
+### LED Strip Output (WS2882)
+
+| Name | Label | Count | Notes                       |
+| ---- | ----- | ----- | --------------------------- |
+| LED  | LED   | 1x    | Strip LED output for WS2882 |
+
+### I2C
+
+| Name  | Label | Notes |
+| ----- | ----- | ----- |
+| Clock | SCL   |       |
+| Data  | SDA   |       |
+
+### SWD
+
+| Name | Label | Notes |
+| ---- | ----- | ----- |
+| SWC  | SWC   |       |
+| SWD  | SWD   |       |
+| GND  | G     |       |
+| 3.3V | 3V3   |       |
+
+## Connectors
+
+### ESC 1-4 (JST-SH 8 pins)
+
+| Pin | Name      | Label |
+| --- | --------- | ----- |
+| 1   | Battery   | BAT   |
+| 2   | Ground    | G     |
+| 3   | Current   | C     |
+| 4   | Telemetry | T     |
+| 5   | Signal 1  | M1    |
+| 6   | Signal 2  | M2    |
+| 7   | Signal 3  | M3    |
+| 8   | Signal 4  | M4    |
+
+### Digital VTX (JST-SH 6 pins)
+
+| Pin | Name      | Label     |
+| --- | --------- | --------- |
+| 1   | 10V       | 10V       |
+| 2   | GND       | G         |
+| 3   | USART1_TX | T1        |
+| 4   | USART2_RX | R1        |
+| 5   | GND       | G         |
+| 6   | SBUS      | SBUS (R2) |
+
+</TabItem>
+<TabItem value="wiring" label="Wiring Diagrams">
+
+![Layout](./ORBITF435-images/ORBITF435_Layout.jpg)
+
+</TabItem>
+
+<TabItem value="photos" label="Photos">
+  ![Top](./ORBITF435-images/ORBITF435_Top_Bottom.jpg)
+</TabItem>
+
+<TabItem value="notes" label="Notes">
+
+:::info
+
+**SBUS Inverter**
+
+The SBUS pad is connected to USART2_RX (R2) through an inverter circuit, which can be toggled ON or OFF via CLI commands in Betaflight. To use R2 as an SBUS receiver, ensure that `serialrx_inverted` is set to OFF:
+
+> set serialrx_inverted=OFF
+
+> save
+
+:::
+
+:::danger
+
+When using individual ESCs with integrated BECs, please do not connect the 5V OUT of the ESC to the FC, it will cause the FC/ESC to burn.
+
+:::
+
+</TabItem>
+
+</Tabs>