Shivansh Singh
Published

AWS Cloud Enabled Burglar Alarm

Idea is to use AWS IoT button as a switch when pressed sends notification to the homeowner that someone has tried to enter the home.

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AWS Cloud Enabled Burglar Alarm

Things used in this project

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Schematics

Architecture of the Project

Aws%20iot%20project%20 %20arch%20dig

Code

Lambda Function

JavaScript
This is the lambda function created on AWS Lambda service. The function is a NodeJS function. When invoked, this function publishes a message (represented by "Message") to the SNS topic defined as "TopicArn".
var aws = require('aws-sdk');
var sns = new aws.SNS();

// handler method
exports.handler = function(event, context) {
    console.log('processed by lambda');
    var params = {
        Message: 'AWS IoT Button',
        // Below is sent as text message
        Subject: 'Alert! Front door is opened.',
        //You will have to create a topic defined below.
        TopicArn: 'arn:aws:sns:us-east-1:123456789:aws-iot-button-sns'
    };
    
    sns.publish(params, function(err, data) {
        if (err) {
            context.fail('ERROR:Calling SNS from Lambda: ' + err)
        } else {
            console.log('Great success! JSON: ' + JSON.stringify(data, null, ' '));
            context.succeed('SUCCESS');
        }
    });
};

AWS IAM Role policy

JSON
This is the IAM role policy for the lambda function, to allow it to execute and publish messages to the SNS topic.
{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Effect": "Allow",
      "Action": [
        "logs:CreateLogGroup",
        "logs:CreateLogStream",
        "logs:PutLogEvents"
      ],
      "Resource": "arn:aws:logs:*:*:*"
    },
    {
        "Sid": "Stmt145193837000",
        "Effect": "Allow",
        "Action": [
            "sns:Publish"
        ],
        "Resource": [
            "arn:aws:sns:us-east-1:123456789553:aws-iot-button-sns"
        ]
    }
  ]
}

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Shivansh Singh

Shivansh Singh

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