In this video, we will see how to Simulate ESP32 Integration with DHT22 with Wokwi and send the temperature and humidity values to the NodeRED Dashboard using MQTT.
By the end of this video, you can see the realtime changes in Temperature and humidity of DHT22 on the NodeRed Dashboard using the MQTT publish and subscribe mechanism.

1. Setup ESP32 with DHT22 in Wokwi
2. Add the libraries needed
3. Upload the code
4. Setup the MQTT publish in code
5. Setup NodeRed
6. Create a NodeRed Dashboard to subscribe
7. View the Dashboard for the Temperature and Humidity values

This can be used as IoT projects for final year students
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Important links:
GitHub Tutorial Link: https://github.com/HariharnathPaduch...
Wokwi Home Page: https://wokwi.com/
ESP32 Pin Layout: https://docs.espressif.com/projects/e...
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Connect with Me:

Presenter: Hariharnath Paduchuru
LinkedIn:   / hariharnath  
WhatsApp channel: https://whatsapp.com/channel/0029Va48...

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My Video Equipment:

Boya ByM1 mic: https://amzn.to/3MkRMRg
BROLAVIYA Overhead Video Mobile Stand: https://amzn.to/3QCpDYq
Digitek Tripod: https://amzn.to/49g1Cxm
Digitek Ring light: https://amzn.to/46LGwFJ
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Curated Playlists:

IoT Fundamentals:    • Fundamentals of IoT  
IoT Applications:    • IoT Applications  
Career in IoT:    • Career in IoT  
IoT Cloud Platforms:    • IoT Cloud Platforms  
Azure IoT Series:    • Azure IoT Tutorial Series  
NodeRED Tutorials:    • NodeRED Tutorials  
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‪@Wokwi‬
#mqtt #esp32 #wokwi