Best Home Automation System 🏡 using ESP32 Blynk Bluetooth with Fan Dimmer | IoT Project 2022

In this IoT Internet of things project, I have explained how to make the best home automation system using ESP32 Blynk Bluetooth and IR remote control relay. You can also control appliances, and fan speed without internet from Bluetooth app, IR remote, and manual switches.

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For this ESP32 project, I have used the FREE plan of the Blynk IoT platform and the ESP32 can save the last GPIO state in NVS flash memory (EEPROM).

During this IoT tutorial video, I have covered the following topics:
00:34 Quick demo on this ESP32 IoT Project.
03:14 Required Components for ESP32 home automation.
03:24 Circuit of ESP32 IoT-based home automation project.
03:45 PCB for the ESP32 control relay with fan dimmer.
04:27 Setup Blynk IoT cloud for ESP32 project.
06:56 Source Code for the ESP32 Blynk IoT project.
09:21 Set up Blynk IoT app Mobile Dashboard.
10:39 Connect ESP32 with Bluetooth app.
11:46 Install the IoT-based home automation system.

Required Components (without PCB) for the ESP32 project.
1. ESP32 DEV KIT V1
2. 8-channel 5V SPDT Relay Module
3. TSOP1838 IR receiver (with metallic casing)
4. HC-05 Bluetooth module.
5. Switches
6. 4-step Fan regulator
OR
(2.2uf & 3.3uf 250V Capacitor, 2.2-ohm 1/2W Resistors, 220k 1/4W Resistors, and 4-step selector switch)

For the PCB, I have shared the complete component list during the video.

Amazon India Affiliate links:
ESP32: https://amzn.to/331pohb
8-channel 5V Relay Module: https://amzn.to/3mTWyVZ

Amazon United States Affiliate links:
ESP32: https://amzn.to/3mBjCch
8-channel 5V Relay Module: https://amzn.to/3p50UeH

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Download (Code + Bluetooth App + PCB Gerber) for the ESP32 IoT project from the following article:
https://iotcircuithub.com/esp32-blynk...

Previous Videos:
Previous Blynk ESP32 Project:    • The SMARTEST Home Automation System 😎...  
Get the HEX codes from IR remote:    • Smart Home with Amazon Alexa using ES...  
Steps to program ESP32 with Arduino IDE:    • Programming NodeMCU ESP8266 & ESP32 w...  

Important Links:
New Blynk IoT Cloud: https://blynk.cloud/dashboard/register

Important points:
1. In the 4-step regulator step-2 & 3 must be internally connected.
2. IR receiver sensor must have a metallic casing. Otherwise, you may face issues while trying to get the Hex code.
3. ESP32 can save the last GPIO state after power failure.
4. You can control fan speed relays with Bluetooth, switches & IR remote if WiFi is not available.
5. Install the correct version of the ESP32 board and libraries as mentioned in the code.
7. Please watch the complete video, otherwise you may face some issues.
**Please take proper safety precautions while working with high voltages.

During the Blynk tutorial video, I explained all the steps to make this home automation system. For Bluetooth control, you can use any BLE or Bluetooth module.
You can also add Blynk Automations to control the relays with the pre-defined timer.
With this ESP32 home automation project, you can control the fan speed and relays without WiFi from the Bluetooth, IR remote, and manual switches. ESP32 will automatically connect with the Blynk cloud when the internet comes back and the relays will turn on as per the previous states.
You can use any IR remote to control the relays, just get the HEX codes of unused IR remote buttons, and control the appliances with those buttons.
This smart relay module PCB can be used for different ESP32 projects which I will cover in upcoming videos.

#homeautomation #iotprojects #esp32 #blynk
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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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