IoT Project using ESP32 NodeMCU ESP8266 network with Blynk App | IoT based Home Automation 2022

In this IoT tutorial, I have shown how to make the IoT Project using ESP32 NodeMCU ESP8266 network with Blynk App. With this IoT based home automation project, you can control multiple NodeMCU and ESP32 from a single Blynk cloud account. So you can use multiple ESP8266 for different rooms, and control them with Blynk IoT App.

PCBA from $0 (Free Setup, Free Stencil) https://jlcpcb.com/RHS

Download PCB Gerber file for NodeMCU control relays
https://drive.google.com/uc?export=do...

Download PCB Gerber file for ESP32 control relays
https://drive.google.com/uc?export=do...

During the tutorial video, I have covered the following topics:
00:58 Control multiple NodeMCU ESP32 with Blynk app.
03:05 Required Components for the Blynk IoT project.
03:26 Circuit of the ESP32 & ESP8266 IoT-based Smart Home project.
05:07 How to set up the Blynk cloud platform.
08:25 Source code for this IoT-based home automation system.
12:01 Program the ESP32 NodeMCU with Arduino IDE.
12:45 Set up Blynk IoT app for the IoT project.
14:02 Controlling multiple NodeMCU ESP32 control relays from Blynk.

Required Components for each room for this home automation
1. NodeMCU ESP8266 or ESP32
2. 4-channel 5V SPDT Relay Module
3. Push Buttons or Switches

Amazon India Affiliate links:
NodeMCU : https://amzn.to/3fJA4EG
ESP32 DEV KIT V1: https://amzn.to/331pohb
4-channel 5V Relay Module: https://amzn.to/2BQ5Y3o

Amazon United States Affiliate links:
NodeMCU : https://amzn.to/2WoR2A2
ESP32 DEV KIT V1: https://amzn.to/3mBjCch
4-channel 5V Relay Module: https://amzn.to/3r2HuJ4

Required Components for the NodeMCU control Relay PCB:
1. Relays 5v (SPDT) (4 no)
2. BC547 Transistors (4 no)
3. PC817 Optocuplors (4 no)
4. 510-ohm 0.25-watt Resistor (4 no) (R1 -- R4)
5. 1k 0.25-watt Resistors (5 no) (R5 -- R9)
6. LED 5-mm (5 no)
7. 1N4007 Diodes (5 no) (D1 -- D5)
8. Push Buttons (4 no)
9. Terminal Connectors
10. Jumpers
11. 5V DC supply

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***Important Links:
Download Code for the ESP32 & NodeMCU home automation project from the following article.
https://iotcircuithub.com/iot-project...

Blynk Cloud sign up: https://blynk.cloud/dashboard/register

Important points:
1. In code, you have to change the virtual pins according to the microcontroller numbers.
2. You can use different WiFi networks for each microcontroller, but the Authentication Token should be the same for all the microcontrollers.
3. Here Blynk cloud will treat all the microcontrollers as a single device as we have used the same AUTH token.
4. If the Wi-Fi is available, the ESP32 or ESP8266 will automatically connect with Blynk cloud and the status LED (blue) will turn ON.
5. If you use latched switch, then during reset the switch-2 (D3) must be turned OFF.
**Please take proper safety precautions while working with high voltages.

During this Blynk IoT tutorial video, I have explained all the steps to configure the new Blynk 2.0 platform for any IoT-based smart home automation system. If the NodeMCU or ESP32 is connected with the WiFi then you can control the relays from anywhere in the world from mobile, and monitor the real-time feedback in the Blynk IoT applications. So with this internet of things project, you can convert any home appliances to IoT devices and control them through the internet.

#iot #homeautomation #esp32

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WARNING:
This video is for demonstration and educational purposes only.
Each demonstration presents risks and hazards that must be fully understood before attempting.
And should be performed only by professionals
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Other useful IoT projects:

Latest NodeMCU projects playlist:
   • NodeMCU Projects  

Latest ESP32 projects playlist:
   • ESP32 Projects  

Arduino Home Automation Projects playlist:
   • Arduino Projects