# Integrate AWS IOT

# Create a thing

From AWS console, search for IOT core
Create a Thing and name it, this name will be used as the OpenMQTTGateway name.

AWS tutorial step

AWS tutorial step

AWS tutorial step

AWS tutorial step

# Create a policy

AWS tutorial step

AWS tutorial step

AWS tutorial step

Add this json code to the policy

{
  "Version": "2021-11-01",
  "Statement": [
    {
      "Effect": "Allow",
      "Action": [
        "iot:Connect",
        "iot:Publish",
        "iot:Subscribe",
        "iot:Receive",
        "greengrass:Discover"
      ],
      "Resource": [
        "*"
      ]
    }
  ]
}

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# Create a certificate

Create a new certificate

AWS tutorial step

Download certificates and key

AWS tutorial step

# Attach Policy with certificate

AWS tutorial step

# Activate certificate and attach it to Thing

AWS tutorial step

# Find AWS EndPoint

AWS tutorial step

# Gather the information for OpenMQTTGateway configuration

Now you should have the following information for the OpenMQTTGateway configuration:

Root certificate
Client certificate
Client key
End point url
Gateway name

# Modify OpenMQTTGateway configuration

With Arduino IDE, you can update the following field into User_config.h with the information gathered:

Gateway_Name
MQTT_SERVER "xxxxxx.iot-eu-amazonaws.com"
MQTT_PORT "8883"
AWS_IOT true
ss_server_cert with the root certificate
ss_client_cert with the client certificate
ss_client_key with the Client key
MQTT_SECURE_SELF_SIGNED 1
MQTT_SECURE_DEFAULT true

With PlatformIO you can directly leverage the environment esp32dev-ble-aws

# Build and upload

# Connect to a WiFi Access point see portal

Enter your credentials and verify that Secure connection is marked.

# Verify that you receive data in AWS

Go to things
Click on the thing created
Go to Activity
Click on MQTT Test Client
Subscribe to +/#

You should see messages coming.

AWS tutorial step

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