> For the complete documentation index, see [llms.txt](https://docs.holybro.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.holybro.com/autopilot/kakute-h743-wing/pinout.md).

# Pinout

<figure><img src="https://2367252986-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FLIgtGDAvVGkCKGOJb1bR%2Fuploads%2FuhyqHOKqh86h9HjazKJ0%2FSKU11063.jpg?alt=media&amp;token=cf96c264-5940-4257-89e2-fa4510bd0931" alt=""><figcaption></figcaption></figure>

<table data-header-hidden data-search="false"><thead><tr><th></th><th></th></tr></thead><tbody><tr><td><strong>Pin</strong></td><td><strong>Function</strong></td></tr><tr><td>9V</td><td>Video transmitter positive voltage -9V/2A (Switchable to 12V by jumper)</td></tr><tr><td>Vx</td><td>Servo power output – 6V/6A (Switchable to 8V by jumper)</td></tr><tr><td>5v</td><td>5v output (2A)</td></tr><tr><td>3v3</td><td>3.3v output (0.25A)</td></tr><tr><td>IO1/IO2</td><td>PINIO1 and PINIO2</td></tr><tr><td>Vbat2</td><td>Battery2 Voltage Sense input (10~36V)</td></tr><tr><td>Curr2</td><td>Battery2 Current Sense input (0~3.3V)</td></tr><tr><td>Vo</td><td>Video output to video transmitter</td></tr><tr><td>CAM1/CAM2</td><td>Video input from FPV camera1/2</td></tr><tr><td>G or GND</td><td>Ground</td></tr><tr><td>RSI</td><td>Analog RSSI (0-3.3v) input from receiver</td></tr><tr><td>R2, T2</td><td>UART2 RX and TX</td></tr><tr><td>R3, T3</td><td>UART3 RX and TX</td></tr><tr><td>R5, T5</td><td>UART5 RX and TX</td></tr><tr><td>R6, T6</td><td>UART6 RX and TX</td></tr><tr><td>R7, T7</td><td>UART7 RX and TX</td></tr><tr><td>CTS, RTS</td><td>CTS, RTS for UART7</td></tr><tr><td>R8, T8</td><td>UART8 RX and TX</td></tr><tr><td>Buz+/Buz-</td><td>Piezo buzzer positive/negative leg</td></tr><tr><td>M1~M14</td><td>PWM1~PWM14 signal outputs</td></tr></tbody></table>

#### CAN Port   (4Pin  JST-GH)

| **Pin** | **Pin name** | **Function**                |
| ------- | ------------ | --------------------------- |
| 1       | 5V           | +5V voltage output (1A Max) |
| 2       | H            | CAN1\_H                     |
| 3       | L            | CAN1\_L                     |
| 4       | Gnd          | Ground                      |

#### I2C Port  (4Pin  JST-GH)

| **Pin** | **Pin name** | **Function**                |
| ------- | ------------ | --------------------------- |
| 1       | 5V           | +5V voltage output (1A Max) |
| 2       | SCL          | I2C2\_SCL                   |
| 3       | SDA          | I2C2\_SDA                   |
| 4       | Gnd          | Ground                      |

#### GPS Port

<table data-header-hidden data-search="false"><thead><tr><th></th><th></th><th></th></tr></thead><tbody><tr><td><strong>Pin</strong></td><td><strong>Pin name</strong></td><td><strong>Function</strong></td></tr><tr><td>1</td><td>5V</td><td>+5V voltage output (1A Max)</td></tr><tr><td>2</td><td>TXD</td><td>UART1_TXD</td></tr><tr><td>3</td><td>RXD</td><td>UART1_RXD</td></tr><tr><td>4</td><td>SCL</td><td>I2C1_SCL</td></tr><tr><td>5</td><td>SDA</td><td>I2C1_SDA</td></tr><tr><td>6</td><td>Gnd</td><td>Ground</td></tr></tbody></table>

#### USB Port

<table data-header-hidden data-search="false"><thead><tr><th></th><th></th><th></th></tr></thead><tbody><tr><td><strong>Pin</strong></td><td><strong>Pin name</strong></td><td><strong>Function</strong></td></tr><tr><td>1</td><td>3v3</td><td>3.3v output (0.25A max)</td></tr><tr><td>2</td><td>Boot</td><td>DFU Boot signal input</td></tr><tr><td>3</td><td>VBUS</td><td>5V USB VBUS  input</td></tr><tr><td>4</td><td>D-</td><td>USB data-</td></tr><tr><td>5</td><td>D+</td><td>USB data+</td></tr><tr><td>6</td><td>Gnd</td><td>Ground</td></tr></tbody></table>

#### Power Board

| **Pin**            | **Function**                                |
| ------------------ | ------------------------------------------- |
| BAT-IN             | Connect to Battery positive                 |
| BAT-OUT            | Connect to ESC positive                     |
| GND                | Ground                                      |
| Servo Power jumper | <p>Open =6V(Default)</p><p>Shorted =8V</p>  |
| VTX Power jumper   | <p>Open =9V(Default)</p><p>Shorted =12V</p> |


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