Objective of this project is to send sensor data to Azure IoT Hub.
You can watch my video on YouTube : https://www.youtube.com/watch?v=A0xrhWByCtc
Architecture
Below are the details -
Hardware
- NodeMCU 8266
3. Jumper Wires
4. Breadboard
5. USB Cable
Circuit:
Prerequisite Software
• Arduino IDE
• Board Manager congigured with esp8266
• DHT sensor library(by Adafruit 1.4.1) installation
Azure IoT Hub Configuration
- Create IoT Hub with F1 Free Pricing
- Add Device from IoT Devices section
Azure Cloud Shell SAS Generation
- az iot hub generate-sas-token --device-id {YourDeviceID} --hub-name {YourIoTHubName}
- Example: az iot hub generate-sas-token --device-id esp8266 --hub-name myioteventhub
Fingerprint Generation Youtube Video Link: https://www.youtube.com/watch?v=FbOlSMrM-BE
- Download Open SSL binaries from https://slproweb.com/products/Win32OpenSSL.html
- Command to generate fingerprint.
openssl s_client -servername {IoT Hub Host Name} -connect { IoT Hub Host Name}:443 | openssl x509 -fingerprint -noout
Example:
openssl s_client -servername myioteventhub.azure-devices.net -connect myioteventhub.azure-devices.net:443 | openssl x509 -fingerprint -noout
Fingerprint Format: 9S:89:07:5D:55:5C:F7:56:79:0A:03:BD:DE:F4:54:F2:C9:E3:FF:9C
IOT Hub : Send Device Event Https Post API
Microsoft Reference Used: