> Complete documentation index: [llms.txt](/llms.txt). Markdown versions of all pages are available by appending `.md` to page URLs.

# Bridge 1.1 API - GPIO Commands

### Set Voltage

See [#set-bus-voltage](/user-guide/protocols-and-interfaces/bridge-11-api/bridge-11-api-i2c-commands/#set-bus-voltage "mention").

### GPIO Configuration

*   **Command Request:**

    ```json
    {
      "transaction_id": "1",
      "command": "gpio_config_pin",
      "params": {
        "pinNumber": "<1..6>",
        "functionality": "<DIN|DOUT>"
      }
    }
    ```
* **Responses:**
  *   Immediate Promise Response:

      ```json
      {
        "transaction_id": "1",
        "status": "success",
        "type": "command_response",
        "is_promise": true,
        "data": {
          "command": "gpio_config_pin"
        }
      }
      ```
  *   Final Response:

      ```json
      {
        "transaction_id": "1",
        "status": "success",
        "type": "command_response",
        "is_promise": false,
        "data": {
          "is_response_to": "gpio_config_pin",
          "status": "success"
        }
      }
      ```

### GPIO Read

*   **Command Request:**

    ```json
    {
      "transaction_id": "1",
      "command": "gpio_digital_read",
      "params": {
        "pinNumber": "1..6"
      }
    }
    ```
* **Responses:**
  *   Immediate Promise Response:

      ```json
      {
        "transaction_id": "1",
        "status": "success",
        "type": "command_response",
        "is_promise": true,
        "data": {
          "command": "gpio_digital_read"
        }
      }
      ```
  *   Final Response:

      ```json
      {
        "transaction_id": "1",
        "status": "success",
        "type": "command_response",
        "is_promise": false,
        "data": {
          "is_response_to": "gpio_digital_read",
          "status": "success",
          "logic_level": "<LOW|HIGH>"
        }
      }
      ```

### GPIO Write

*   **Command Request:**

    ```json
    {
      "transaction_id": "1",
      "command": "gpio_digital_write",
      "params": {
        "pinNumber": "<1..6>",
        "logicLevel": "<0|1>"
      }
    }
    ```
* **Responses:**
  *   Immediate Promise Response:

      ```json
      {
        "transaction_id": "1",
        "status": "success",
        "type": "command_response",
        "is_promise": true,
        "data": {
          "command": "gpio_digital_write"
        }
      }
      ```
  *   Final Response:

      ```json
      {
        "transaction_id": "1",
        "status": "success",
        "type": "command_response",
        "is_promise": false,
        "data": {
          "is_response_to": "gpio_digital_write",
          "status": "success"
        }
      }
      ```

### Configure GPIO Interruptions

*   **Command Request:**

    ```json
    {
      "transaction_id": "1",
      "command": "gpio_set_interrupt",
      "params": {
        "pinNumber": "<1..6>",
        "edgeTrigger": "<RISING|FALLING|BOTH>"
      }
    }
    ```
* **Responses:**
  *   Immediate Promise Response:

      ```json
      {
        "transaction_id": "1",
        "status": "success",
        "type": "command_response",
        "is_promise": true,
        "data": {
          "command": "gpio_set_interrupt"
        }
      }
      ```
  *   Final Response:

      ```json
      {
        "transaction_id": "1",
        "status": "success",
        "type": "command_response",
        "is_promise": false,
        "data": {
          "is_response_to": "gpio_set_interrupt",
          "status": "success"
        }
      }
      ```

### GPIO Interruption Notification Message

```json
{
  "transaction_id": "0",
  "status": "success",
  "type": "notification",
  "is_promise": false,
  "data": {
    "payload": {
      "pin": "<1..6>"
    }
  }
}
```