AWS IoT Thing Attributes - introduction |

Contents

Overview

The IoT Thing is a virtual representation of a physical device or logical entity (for instance: an application).

Following Thing properties describe an IoT Thing:

Thing Name
Thing Type
Thing Attributes
Thing Groups
Billing Group

Thing Attributes

Thing Attributes are key-value pairs that record information about the Thing (for instance: the hardware version or vendor).

We can create an IoT Thing and define Thing Attributes using the AWS SDK for Python (Boto3).

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import boto3
import json

# A session manages state about a particular configuration.
# I recommend you specify profile and region - that is a good development practice.
session = boto3.Session(profile_name='train',region_name='eu-west-1')

# Obtain the IoT Client.
iot_c = session.client('iot')

# Create an AWS IoT Thing and device Thing Attributes.
iot_c.create_thing(
    thingName="TestThing001",
    attributePayload={
        'attributes': {           # max three attributes; valid types: <class 'str'>
            'fw_version': "0.1",
            'hw_version': "2",
            'vendor': "abc"
        }
    }
)

# List IoT Things managed by the AWS Thing Registry in a region defined by Session.
r = iot_c.list_things()

print(json.dumps(r['things'],indent=2))

Output:

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[
  {
    "thingName": "TestThing001",
    "thingArn": "arn:aws:iot:eu-west-1:693854281758:thing/TestThing001",
    "attributes": {
      "fw_version": "0.1",
      "hw_version": "2",
      "vendor": "abc"
    },
    "version": 1
  }
]

AWS Thing Registry view in the AWS Console:

💡Note:

Things without a specified Thing Type can have up to 3 attributes.
Things with a specified Thing Type can have up to 50 attributes.

I cover the Thing Type in my next post.

Links

Boto3 Session - [link]
Boto3 IoT Client - [link]
AWS IoT Thing Registry - [link]
Named profiles for the AWS CLI - [link]

Video

Iot Aws