In this IoT projects, I have shown how to make the ESP32 Alexa home automation system with manual & voice control 8 devices. You can also monitor the real-time feedback in the Amazon Alexa app. With this Alexa smart home project, you can also control the relays from the manual switches without the internet.
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Download PCB Gerber file for this ESP32 IoT based home automation project
drive.google.com/uc?export=do...
During the ESP32 tutorial video, I have covered all the following topics:
00:30 How to control 8 relays using ESP32 from Alexa App and switches.
03:02 Circuit diagram of the ESP32 Home Automation project.
04:37 Programming the ESP32 with Arduino IDE
06:46 How to add IoT devices & ESP32 with Amazon Alexa App.
07:49 Connect 8 home appliances with the smart relay module.
07:57 Controlling 8 appliances with voice and switches using the ESP32 control relays.
Required Components for this ESP32 home automation system
1. ESP32 DEV KIT V1
2. 8-channel 5V SPDT Relay Module
3. Switches or Push-Buttons
4. Amazon Alexa Echo Dot or any Alexa Devices.
Amazon United States Affiliate links:
ESP32 DEV KIT V1 : amzn.to/3mBjCch
8-channel 5V Relay Module : amzn.to/3p50UeH
Amazon India Affiliate links:
ESP32 DEV KIT V1 : amzn.to/331pohb
8-channel 5V Relay Module : amzn.to/3mTWyVZ
Amazon Echo Dot (4th Gen) : amzn.to/3srCiPA
Required Components for the ESP32 control Relay Module PCB:
1. Relays 5v (SPDT) (8 no)
2. BC547 Transistors (8 no)
3. PC817 Optocuplors (8 no)
4. 510-ohm 0.25-watt Resistor (8 no) (R1 -- R8)
5. 1k 0.25-watt Resistors (10 no) (R9 -- R18)
6. LED 5-mm (10 no)
7. 1N4007 Diodes (8 no) (D1 -- D8)
8. Push Buttons (8 no)
9. Terminal Connectors
10. 5V DC supply
Download Code for this ESP32 smart house automation project
iotcircuithub.com/esp32-alexa...
Previous Video on Alexa smart home:
ESP32 Alexa control relay without Alexa Echo dot
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ESP8266 Alexa control relay without Alexa Echo dot
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During the video, I have shared the circuit and code for this IoT project. So after watching the complete tutorial video you can easily make this ESP32 Alexa smart home project.
There is a limitation, the ESP32, and the echo dot smart speaker should be connected with the same wifi network.
Soon I will publish the complete article on my website and share the link here.
If you face any issues please let me know in the comment section.
#internetofthings #esp32 #Alexa
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