AWS Serverless Backend

Introduction

The system architecture is shown in the figure above. We use Raspberry Pi & DHT22 as sensor device to send readings to AWS Gateway, then each reading will be sent to AWS DynamoDB to be saved as an item in a table, and simultaneously trigger an AWS Lambda function to exam the reading and send out warning alert when the reading exceed expected range.

AWS API Gateway

AWS DynamoDB

AWS Lambda

https://github.com/danlwo/Temperature-Humidity-Sensor---Raspberry-Pi-DHT-22-and-AWS-Serverless-Architecture-Backend/blob/master/sensorReadingAlarm