ESP32 Home Automation using Amazon Alexa + Bluetooth + IR Remote with FREE IoT platform
In this IoT internet of things project, I have shown how to make the ESP32 home automation system using Amazon Alexa, Bluetooth, IR Remote, and manual switch with the EspAlexa library (Free IoT platform). You can also control relays with voice commands and monitor the real-time feedback in the Amazon Alexa app.
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For this ESP32 project, I have not used any IoT platform, and the ESP32 can save the last GPIO state in NVS flash memory using Preference library (EEPROM). You can control the relay with Bluetooth, IR remote, and switches if the ESP32 is not connected to WiFi.
During this IoT tutorial video, I have covered the following topics:
00:35 Quick demo on this ESP32 Alexa Project.
02:59 Circuit of ESP32 home automation system.
03:28 Source Code for ESP32 project using ESPAlexa.
05:53 Add devices in the Amazon Alexa app using Echo Dot.
06:42 Steps to connect ESP32 with Bluetooth app.
Required Components (without PCB) for the ESP32 project.
1. ESP32 DEV KIT V1
2. 4-channel 5V SPDT Relay Module
3. TSOP1838 IR receiver (with metallic casing)
4. Switches
5. Amazon Echo Dot
Amazon India Affiliate links:
ESP32: https://amzn.to/331pohb
4-channel 5V Relay Module: https://amzn.to/2BQ5Y3o
Amazon Echo Dot (4th Gen): https://amzn.to/33APQx1
Amazon United States Affiliate links:
ESP32: https://amzn.to/3mBjCch
4-channel 5V Relay Module: https://amzn.to/3r2HuJ4
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Download the Code for the ESP32 IoT project using EspAlexa & Bluetooth from the following article:
https://iotcircuithub.com/bluetooth-a...
Download Bluetooth App for the ESP32 Bluetooth project
https://drive.google.com/file/d/1IpKt...
Download the PCB Gerber File of the ESP32 IoT Project:
https://drive.google.com/uc?export=do...
Previous Videos:
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 points:
1. The Bluetooth app need "Nearby Devices" permission in your mobile.
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 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.
6. You must need an Amazon Echo device for this ESP32 Alexa project.
7. The Amazon Echo device, ESP32 must be connected to the same WiFi.
8. Please watch the complete video, otherwise you may face some issues.
**Please take proper safety precautions while working with high voltages.
During the ESP32 project, I explained all the steps to make the Amazon home automation system. For Bluetooth control, you can use any other Bluetooth app, just modify the code as shown in the tutorial video.
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.
With this ESP32 home automation project, you can control relays without WiFi from the Bluetooth, IR remote, and manual switches.
This smart ESP32 relay module PCB can be used for different ESP32 projects which I will cover in upcoming videos.
#homeautomation #iotprojects #esp32 #alexa
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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 ESP32 projects playlist:
• ESP32 Projects
Latest NodeMCU projects playlist:
• NodeMCU Projects
Arduino Home Automation Projects playlist:
• Arduino Projects
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