Publish sensor data to a specific topic (e.g., esp32/sensor/data ) and subscribe to a command topic to receive instructions from the cloud. 4. Backend Processing & Visualization

Connect to local networks using your SSID and password.

Send notifications via email or SMS when specific thresholds are met.

Define a JSON policy that grants iot:Connect , iot:Publish , and iot:Subscribe permissions to your device.

Use AWS IoT Analytics or Amazon QuickSight to build dashboards for real-time monitoring. Recommended Resources for Learning

To allow your ESP32 to communicate, you must register it as a "Thing" in the AWS console.

Use the unique AWS IoT Endpoint found in your AWS console settings to establish a secure link.

Create a unique identity (e.g., "MyESP32Device").