532-final

--- System Configuration ---

The main components and their configuraitons are explained within the cloudConfig.txt file and the hwConfig.txt file. The key steps are as follows:

• Build device

  • Connect ultrasonic sensor to ESP32
  • Offload code onto ESP32
  • Connect device to permanent power, mount to top of water drum, boot on

• Setup cloud services

  • Create things, attatch permissions to certificates. Use provided certficate and key and endpoint to connect device to AWS
  • Create DynamoDB table
  • Reroute distance messages published by devices to Iot Core to DynamooDB table, hash values given the device_id
  • Create Lambda function that returns distance of a certain deivce from the dynamooDB table, given the device_id
  • Create a API Gateway GET call that uses the lambda function, using the device_id as the parameter, to create a API call that will be used by the email script and the web app.
  • Create an EC2 server
    • Upload email notification script
      • give cron executabile rights
      • create cron job to run the script every 30 minutes
      • give cron boot persistance
    • Upload the flask web application
      • Create a systemmd service for gunicorn to host the app
      • configue the service given the python.config and requirments.txt (which also was in the virtual enviroment created for the app)
      • Start and enable the guniron service with boot.