> For the complete documentation index, see [llms.txt](https://teravolt.gitbook.io/teravolt/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://teravolt.gitbook.io/teravolt/peripherals/aerobridge/pinout.md).

# Pinout

<figure><img src="/files/TkJjTm37f3DYKGYbxjbH" alt=""><figcaption></figcaption></figure>

Connect the CAN1 or CAN2 lines of AeroBridge to the CAN bus of the autopilot. Ensure correct termination is applied at both ends of the bus.

> Note: The AeroBridge module uses standard DroneCAN pinout (JST-GH 4-pin or user-defined).

#### CAN1 Connector  (JST-GH, 4-pin)

| Pin | Signal  | Description           |
| --- | ------- | --------------------- |
| 1   | 5V\_CAN | CAN Power Supply      |
| 2   | CAN\_H  | CAN High (aka CAN\_P) |
| 3   | CAN\_L  | CAN Low (aka CAN\_N)  |
| 4   | GND     | Ground                |

#### CAN2 Connector (JST-GH, 4-pin)

| Pin | Signal  | Description           |
| --- | ------- | --------------------- |
| 1   | 5V\_CAN | CAN Power Supply      |
| 2   | CAN\_H  | CAN High (aka CAN\_P) |
| 3   | CAN\_L  | CAN Low (aka CAN\_N)  |
| 4   | GND     | Ground                |

#### &#x20;PWM Connector (JST-GH, 10-pin)

| Pin | Signal   | Description                                          |
| --- | -------- | ---------------------------------------------------- |
| 1   | PWM1     | PWM Output 1                                         |
| 2   | PWM2     | PWM Output 2                                         |
| 3   | PWM3     | PWM Output 3                                         |
| 4   | PWM4     | PWM Output 4                                         |
| 5   | PWM5     | PWM Output 5                                         |
| 6   | PWM6     | PWM Output 6                                         |
| 7   | PWM7     | PWM Output 7                                         |
| 8   | PWM8     | PWM Output 8                                         |
| 9   | 5V (J12) | Optional 5V output (via jumper J12, open by default) |
| 10  | GND      | Ground                                               |

#### SWD + UART2 Connector (JST-GH, 6-pin)

| Pin | Signal    | Description     |
| --- | --------- | --------------- |
| 1   | 3.3V      | Power Supply    |
| 2   | UART2\_TX | Serial Transmit |
| 3   | UART2\_RX | Serial Receive  |
| 4   | SWDIO     | SWD Data        |
| 5   | SWCLK     | SWD Clock       |
| 6   | GND       | Ground          |

#### SPI Connector (JST-GH, 7-pin)

| Pin | Signal | Description   |
| --- | ------ | ------------- |
| 1   | 5V     | Power Supply  |
| 2   | SCK    | SPI Clock     |
| 3   | MISO   | SPI Data In   |
| 4   | MOSI   | SPI Data Out  |
| 5   | CS1    | Chip Select 1 |
| 6   | CS2    | Chip Select 2 |
| 7   | GND    | Ground        |

#### &#x20;UART1 + I2C1 Connector (JST-GH, 6-pin)

| Pin | Signal    | Description     |
| --- | --------- | --------------- |
| 1   | 5V        | Power Supply    |
| 2   | UART1\_RX | Serial Receive  |
| 3   | UART1\_TX | Serial Transmit |
| 4   | I2C1\_SCL | I2C Clock       |
| 5   | I2C1\_SDA | I2C Data        |
| 6   | GND       | Ground          |