====== GPIO ======
Commands that provide access to **GPIO** data and functions.

===== Get Current State =====
----
Get the current state of the instrument's channel

**Command**
  * **gpio** - (Object) - The gpio object.
    * **#** - (Array<Object>) - An array of command objects to apply to the gpio channel.
      * **command** - (String) - The Get Current State command: “getCurrentState”

**Response**
  * **gpio** - (Object) - The gpio object.
    * **#** - (Array<Object>) - An array of command objects applied to the gpio channel.
      * **command** - (String) - The Get Current State command: “getCurrentState”
      * **statusCode** - (Integer) - A numeric value representing the device status.  See [[software:digilent-instrumentation-protocol:status-codes]]
      * **wait** - (Integer) - The number of ms to wait before the device is ready to process another command.   
      * **state** - (String) - The GPIO channel state: "idle" or "running".
      * **mode** - (String) - The GPIO channel mode: "la" or "gpio".
      * **direction** - (String) - The GPIO channel direction: "input", "output", or "tristate".
      * **value** - (Integer) - The GPIO value: 0 or 1.

=== Example ===
<WRAP group>
<WRAP half column>
**Command**
<code>
{
    "gpio": {
        "1": [
            {
                "command":"getCurrentState"
            }
        ]
    }
}
</code>
</WRAP>
<WRAP half column>**Response**</WRAP>
<code>
{
    "gpio": {
        "1": [
            {
                "command":"getCurrentState",
                "statusCode": 0,
                "wait":0,
                "state": "idle",
                "mode": "gpio",
                "direction": "output",
                "value": 1                
            }
        ]
    }
}
</code>
</WRAP>
\\



===== Read =====
----
Read the specified GPIO channel(s).

**Command**
  * **gpio** - (Object) - The GPIO object.
    * **#** - (Array<Object>) - An array of command objects to apply to the GPIO channel.
      * **command** - (String) - The Read command: “read”

**Response**
  * **gpio** - (Object) - The GPIO object.
    * **#** - (Array<Object>) - An array of command objects applied to the GPIO channel.
      * **command** - (String) - The Read command: “read”
      * **statusCode** - (Integer) - A numeric value representing the device status.  See [[software:digilent-instrumentation-protocol:status-codes]]
      * **wait** - (Integer) - The number of ms to wait before the device is ready to process another command.   
      * **direction** - (String) - The GPIO channel's direction (ex. "input", "output").
      * **value** - (Integer) - The GPIO channel's value (ex. 0, 1).

===Example:===
<WRAP group>
<WRAP half column>
**Command**
<code>
{
   "gpio":{
      "1":[
         {
            "command":"read"
         }
      ]
   }
}
</code>
</WRAP>
<WRAP half column>**Response**</WRAP>
<code>
{
   "gpio":{
      "1":[
         {
            "command":"read",
            "statusCode":0,
            "wait":100,
            "direction: "input"
            "value":1            
         }
      ]      
   }
}
</code>
</WRAP>
\\
\\

===== Set Parameters =====
----
Set the parameters (direction) of the specified GPIO channel(s).

**Command**
  * **gpio** - (Object) - The GPIO object.
    * **#** - (Array<Object>) - An array of command objects to apply to the gpio channel.
      * **command** - (String) - The Set Parameters command: “setParameters”
      * **direction** - (String) - The GPIO direction: "input", "output", "inputPullUp", "inputPullDown".

**Response**
  * **gpio** - (Object) - The GPIO object.
    * **#** - (Array<Object>) - An array of command objects applied to the gpio channel.
      * **command** - (String) - The Get Current State command: “getCurrentState”
      * **statusCode** - (Integer) - A numeric value representing the device status.  See [[software:digilent-instrumentation-protocol:status-codes]]
      * **wait** - (Integer) - The number of ms to wait before the device is ready to process another command.   

===Example:===
<WRAP group>
<WRAP half column>
**Command**
<code>
{
   "gpio":{
      "1":[
         {
            "command":"setParameters",
            "direction":"input"
         }
      ],
      "2":[
         {
            "command":"setParameters",
            "direction":"output"
         }
      ]
   }
}
</code>
</WRAP>
<WRAP half column>**Response**</WRAP>
<code>
{
   "gpio":{
      "1":[
         {
            "command":"setParameters",
            "statusCode":0,
            "wait":100
         }
      ],
      "2":[
         {
            "command":"setParameters",
            "statusCode":0,
            "wait":100
         }
      ]      
   }
}
</code>
</WRAP>
\\
\\


===== Write =====
----
Write the output voltage(s) of the specified GPIO channel(s).

**Command**
  * **gpio** - (Object) - The GPIO object.
    * **#** - (Array<Object>) - An array of command objects to apply to the GPIO channel.
      * **command** - (String) - The Write command: “write”
      * **value** - (Integer) - The value to write to the GPIO channel (ex. 0 for logic low, 1 for logic high).

**Response**
  * **gpio** - (Object) - The GPIO object.
    * **#** - (Array<Object>) - An array of command objects applied to the GPIO channel.
      * **command** - (String) - The Write command: “write”
      * **statusCode** - (Integer) - A numeric value representing the device status.  See [[software:digilent-instrumentation-protocol:status-codes]]
      * **wait** - (Integer) - The number of ms to wait before the device is ready to process another command.   


===Example:===
<WRAP group>
<WRAP half column>
**Command**
<code>
{
   "gpio":{
      "1":[
         {
            "command":"write",
            "value":1
         }
      ]
   }
}
</code>
</WRAP>
<WRAP half column>**Response**</WRAP>
<code>
{
   "gpio":{
      "1":[
         {
            "command":"write",
            "statusCode":0,
            "wait":500
         }
      ]
   }
}
</code>
</WRAP>
\\
\\