Home Automation with Tasmota using ESP32 Alexa voice control relay & DHT11 sensor | IoT Project 2021

In this ESP32 project, I have explained how to make the home automation with Tasmota using ESP32 Alexa voice control relay and DHT11 temperature sensor to control 8 appliances with Amazon Alexa and manual switches. You can monitor the real-time feedback, room temperature and also control the relays manually from switches without the internet.

You don't need any coding knowledge to make this voice control Alexa smart home system. And all the tools used for this IoT project are FREE and you can easily download them from the Tasmota GitHub page.

Visit the following website to get electronics components, modules at a very reasonable price
https://utsource.net?source=YouTube
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During the IoT tutorial video, I have covered the following topics:
00:36 Control relays with Tasmota Alexa using ESP32
01:39 Control ESP32 without internet.
02:47 Required Components for this Tasmota ESP32 project.
03:15 Circuit diagram of ESP32 Alexa smart home system.
04:50 Download the ESP Flasher tool & Tasmota release from Github.
05:33 How do you install Tasmota on ESP32?
06:59 How to configure Tasmota sensor & devices in ESP32?
10:10 Tasmota Alexa integration for ESP32.
11:06 Setup Amazon Alexa App for Tasmota devices.
12:19 Control relays with voice using Amazon Alexa App and buttons.

Required Components for the ESP32 projects:
1. ESP32 DEVKIT V1
2. 8-channel 5V SPDT Relay Module
3. Push Buttons or Switches
4. DHT11 sensor
5. Amazon Echo Dot

Amazon India Affiliate links:
ESP32 DEV KIT V1 : https://amzn.to/331pohb
8-channel 5V Relay Module : https://amzn.to/3mTWyVZ
Echo Dot Alexa(4th Gen) : https://amzn.to/3srCiPA

Amazon United States Affiliate links:
ESP32 DEV KIT V1 : https://amzn.to/3mBjCch
8-channel 5V Relay Module : https://amzn.to/3p50UeH

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

Important Points:
1. You need an Alexa device like Echo Dot for this project.
2. For no device found error, restart the Echo Dot and try again.
3. The ESP32 and Echo Dot must be connected with the same Wi-Fi.
4. When the flashing starts, you have to press and hold the BOOT button of ESP32.
5. DHT11 sensor is optional.
6. Please take proper safety precautions while working with High Voltage.
7. All the tools used are open source and FREE.


Important Links:
Download the Tasmota firmware and ESP flasher tool from the following article
https://iotcircuithub.com/tasmota-esp...

Download PCB Gerber file for this ESP32 IoT based home automation project
https://drive.google.com/uc?export=do...

$2 for 1-4 Layer PCBs, Get SMT Coupons: https://jlcpcb.com/RHS

Previous video on Tasmota ESP8266 NodeMCU
   • Smart Home using Tasmota ESP8266 Node...  



During the Tasmota tutorial video, I have explained all the steps to make this ESP32 Alexa home automation system using Tasmota to control the home appliances with and without the internet.
You can control the home appliances from Amazon Alexa app from anywhere in the world. Only the ESP32 and Amazon ECHO DOT should be connected with the same Wi-Fi.
Anyone can make this Amazon home automation, as you don't need any coding skills to make it. Just flash the ESP32 with Tasmota Firmware, then configure the Tasmota dashboard as per the requirements.

So with this smart house system, without writing a single line code, you can convert any appliance to IoT devices and control them through the internet.

So, now you can just say "Alexa, turn on Light" to control the home appliances.

#homeautomation #tasmota #internetofthings
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