A web interface for displaying live IoT sensor data (<1 min old)
- Sensor data is read from a DHT11 Temperature and Humidity sensor using an Espressif32 microcontroller and relayed to AWS IoT core using MQTT protocol over WiFi.
- AWS IoT core rules forward the published MQTT message to an AWS DynamoDB table
- Web app fetches latest data from DynamoDB using AWS Amplify API and graphql


