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# Paso 1: Crear la AWS IoT política
<a name="iot-moisture-policy"></a>

Crea una AWS IoT política que permita a tu Raspberry Pi conectarse y enviar mensajes a AWS IoT.

1. En la [consola de AWS IoT](https://console.aws.amazon.com/iot), si aparece un botón **Empezar**, elíjalo. De lo contrario, en el panel de navegación, expanda **Seguridad** y, a continuación, elija **Políticas**.

1. Si aparece el cuadro de diálogo **Aún no tiene ninguna política**, elija **Crear una política**. De lo contrario, seleccione **Crear**.

1. Introduzca un nombre para la AWS IoT política (por ejemplo,**MoistureSensorPolicy**).

1. En la sección **Añadir instrucciones**, sustituya la política existente por el siguiente JSON. Sustituya {{region}} y {{account}} por su Cuenta de AWS número Región de AWS and.  
****  

   ```
   {
       "Version":"2012-10-17",		 	 	 
       "Statement": [
           {
               "Effect": "Allow",
               "Action": "iot:Connect",
               "Resource": "arn:aws:iot:{{us-east-1}}:123456789012:client/RaspberryPi"
           },
           {
               "Effect": "Allow",
               "Action": "iot:Publish",
               "Resource": [
                   "arn:aws:iot:{{us-east-1}}:123456789012:topic/$aws/things/RaspberryPi/shadow/update",
                   "arn:aws:iot:{{us-east-1}}:123456789012:topic/$aws/things/RaspberryPi/shadow/delete",
                   "arn:aws:iot:{{us-east-1}}:123456789012:topic/$aws/things/RaspberryPi/shadow/get"
               ]
           },
           {
               "Effect": "Allow",
               "Action": "iot:Receive",
               "Resource": [
                   "arn:aws:iot:{{us-east-1}}:123456789012:topic/$aws/things/RaspberryPi/shadow/update/accepted",
                   "arn:aws:iot:{{us-east-1}}:123456789012:topic/$aws/things/RaspberryPi/shadow/delete/accepted",
                   "arn:aws:iot:{{us-east-1}}:123456789012:topic/$aws/things/RaspberryPi/shadow/get/accepted",
                   "arn:aws:iot:{{us-east-1}}:123456789012:topic/$aws/things/RaspberryPi/shadow/update/rejected",
                   "arn:aws:iot:{{us-east-1}}:123456789012:topic/$aws/things/RaspberryPi/shadow/delete/rejected"
               ]
           },
           {
               "Effect": "Allow",
               "Action": "iot:Subscribe",
               "Resource": [
                   "arn:aws:iot:{{us-east-1}}:123456789012:topicfilter/$aws/things/RaspberryPi/shadow/update/accepted",
                   "arn:aws:iot:{{us-east-1}}:123456789012:topicfilter/$aws/things/RaspberryPi/shadow/delete/accepted",
                   "arn:aws:iot:{{us-east-1}}:123456789012:topicfilter/$aws/things/RaspberryPi/shadow/get/accepted",
                   "arn:aws:iot:{{us-east-1}}:123456789012:topicfilter/$aws/things/RaspberryPi/shadow/update/rejected",
                   "arn:aws:iot:{{us-east-1}}:123456789012:topicfilter/$aws/things/RaspberryPi/shadow/delete/rejected"
               ]
           },
           {
               "Effect": "Allow",
               "Action": [
                   "iot:GetThingShadow",
                   "iot:UpdateThingShadow",
                   "iot:DeleteThingShadow"
               ],
               "Resource": "arn:aws:iot:{{us-east-1}}:123456789012:thing/RaspberryPi"
           }
       ]
   }
   ```

1. Seleccione **Crear**.