# Bridge 1.1 API - GPIO Commands

### Set Voltage

See [#set-bus-voltage](https://support.binho.io/user-guide/protocols-and-interfaces/bridge-1.1-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>"
    }
  }
}
```