Smart Home with Amazon Alexa using ESP32 control Relay (Voice + IR Remote) | IoT Projects 2021

In this IoT projects, I have shown how to make the Smart Home with Amazon Alexa using ESP32 control Relays to control appliances with voice commands, IR Remote, and switches with and without Wi-Fi. You can also monitor the real-time feedback in the Amazon Alexa app when you control the relays from IR remote and switches.
$2 for 1-4 Layer PCBs, Get SMT Coupons: jlcpcb.com/RHS
Download PCB Gerber file for this ESP32 IoT based home automation project
drive.google.c...
Visit the following website to get electronics components, modules at a very reasonable price
utsource.net?source=KZbin
During the ESP32 tutorial video, I have covered all the following topics:
00:29 How to control 8 relays using ESP32 with Amazon Alexa App.
00:47 Control relay with IR remote and switches.
01:32 Control ESP32 Home automation without internet.
02:34 Required components for ESP32 Alexa Home automation.
02:58 Circuit diagram of the ESP32 IoT projects.
05:08 How to get IR codes (HEX codes) from a remote
06:00 Program ESP32 with Arduino IDE
07:08 Add IoT devices & ESP32 with Amazon Alexa App.
08:11 Control appliances with voice and switches using the ESP32 control relays.
Required Components for this ESP32 Smart Home system
1. ESP32 DEV KIT V1
2. 8-channel 5V SPDT Relay Module
3. Switches or Push-Buttons
4. Any IR remote
5. 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
Echo Dot Alexa(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
Important points for this internet of things projects:
1. The IR receiver sensor must have a metallic casing. Otherwise, you may face issues while trying to get the Hex code.
2. You need an Echo Dot or any other Alexa devices for this project.
3. The ESP32 and the echo dot smart speaker should be connected with the same wifi network.
4. If you face any issue related to Espalexa library, then please visit github.com/Air...
5. Use a stable 5V 5A DC power supply.
Download Codes for this ESP32 Alexa smart Home project from the following article
iotcircuithub....
Previous Video on Alexa smart home:
ESP32 Alexa control relay without Alexa Echo dot
• ESP32 Home automation ...
ESP8266 Alexa control relay without Alexa Echo dot
• Smart Home with Google...
During the video, I have explained the circuit and code for the ESP32 IoT projects. And I have not used any paid IoT platform for this ESP32 project. So after watching the complete tutorial video you can easily make this ESP32 Alexa smart home project.
If you face any issues please let me know in the comment section.
#homeautomation #alexa #esp32
-------------------------------------------------------
Thanks For Watching...
✅ SUBSCRIBE ✅LIKE ✅SHARE ✅ COMMENTS
Find out more such projects: iotcircuithub....
Facebook: / techstudycell
Instagram: / techstudycell
Telegram: t.me/techstudy...
Twitter: / techstudycell
-------------------------------------------------------
Other useful IoT projects:
Latest ESP32 projects playlist:
• ESP32 Projects
Latest NodeMCU projects playlist:
• NodeMCU Projects
ESP32 Home automation with Google Assistant Alexa & Manual Switches
• ESP32 Home automation ...

[@rameshniroj2225]

Adding IR control is awesome work 👌👌👌👌👌

[@TechStudyCell]

Thanks

[@rameshniroj2225]

@@TechStudyCell Can you please do Google assistant + Blink App with 8 relay module for us..? ( GOOGLE + BLINK TO 8 RELAY )

[@rameshniroj2225]

Awesome Work, Please Add GOOGLE ASSISTANCE + BLINK APP TO 8 RELAY MODULE PLEASE SIR ❤️ 🙏🙏🙏

[@aberateklehaimanot9804]

Awesome project...Thank you.

[@TechStudyCell]

Welcome

[@kaushalsuvarna1284]

Ir control is awesome 👍👍👍🔥🔥🔥❤️❤️❤️

[@TechStudyCell]

Thanks

[@IrshadKhan-il2jb]

Full ready circuit board 👍

[@samiranDuttavlogz21]

your project is Awesome!! I have a question.. Can I use ttp223 touch sensor instead of manual switch .. ? I am waiting hear from you!! Please reply ASAP!!

[@jeelramani35]

Kya ye mai daily use karsakte hu means ye bigad nahi jaega na?

[@RealtyElectronics]

Thanks bro its really very helpful. Keep it up.

[@TechStudyCell]

You are welcome

[@simbuking2567]

Nice video thanks

[@TechStudyCell]

Welcome

[@qadeer1685]

Very good information

[@TechStudyCell]

Thanks

[@jobinjoseph50]

Hi can we read an analogue value at the esp pin and relay it to alexa interface. Value to display eg: room temperature, automation based on conditional switching of output based on the value read at esp pins?

[@movieshub224]

awesome bro i am great fan

[@javiaronak]

best home automation ever thanks for sharing all the detail also add google home support

[@TechStudyCell]

Thanks

[@javiaronak]

@@TechStudyCell If possible try to make wifi login page and add google home support

[@parthvarasani495]

You are awesome

[@kamalambrator4332]

nice!! thank you!!

[@TechStudyCell]

Welcome

[@hardikkhanna7231]

Can you please make video for Google assistant+remote+Bluetooth+manual

[@Zerous_12]

Can this project be upgraded to use the EEPROM on the pin state?

[@AkhtarAli-jr8ed]

sir. eik video push button aur blynk par banaye plz..8 relay wala..aur wifi code upload karne ke bad mobile se dale.aur wifi reset button option be ho

[@robinarackal4939]

How about the power supply of really board and esp32 .... It working properly .. but the problem is power supply is very big I choose 5 v.10 amp. Power supply it doesn't fit inside the metal box ..is there any idea to solve the problem .. please mention the accurate power supply for the boards

[@AlvaroGomes]

Very cool project thanks.

[@TechStudyCell]

Welcome

[@rcorco6854]

I congratulate you on all your projects, I have set up one of yours. I would like to know if you could join two of the projects you have? This one and the one for the led strip regulator. Thank you for your great work.

[@romolopermadi9606]

hi min, any video using google home or google home mini to control it?? please share if have,

[@noushadolakara]

Hi dear good product now every errors are solved except after 24 hours the wifi led is getting offline ,then we need it restart , after restarting it it works again 24 hours any way good thank you

[@gianpic6975]

Hello Subhajit first of all, congratulations for the projects you develop and share. Having developed and prototyped pcb of similar projects, I wanted to ask you what software you use for the creation of pcbs. I wanted to start from yours, done very well, and modify it to add a section in which to insert the Power Supply Module Hi-Link HLK-PM01 AC-DC 220 V to 5 V, you can share the starting file, not the gerber, to allow me this change? Obviously I would share the work done again Thank you

[@anshultomar9124]

Hello subhajit, Can i purchase PCB of these project directly from you..adding power module on the board is a good suggestion from Gianpic69

[@pranatabhowmik9458]

Sir apka previous video me me ehi wala idea apko batana chahata tha ki sab tarah ki control ek hi esp32 me laga dijiye

[@roshanverma3008]

This is very good but plzz make it for Google assistant also without using any third party services like ifttt

[@vaibhavpatel7417]

Great job. I'm struggling to find the components online to solder on pcb.. Plz provide a link to buy all components

[@sohinideb7843]

Very useful. Thanks for sharing 👍👍

[@TechStudyCell]

Welcome

[@magmagth4346]

Hi dear friend Can I use IR remote to control for example 20 relay , That is mean I have to use button 1 twice to get number 11 And I have to press buttons 1 and 5 to get number 15, How can I make the code And thank you so much 🙏🌹👏

[@tigasse]

Bonsoir je n'arrive pas à connecter blynk sur mon ESP32

[@arnabde4445]

Can this project work only with alexa mobile app without any other alexa device?

[@TechStudyCell]

No. You need one Alexa device

[@ankitshah1548]

Nice project... So can you make it using alexa and Bluetooth app

[@alodas663]

How to include eeprom facility?

[@chipmaster3031]

you can add to this as well as this Blynk

[@evertonterra9880]

buy someone managed to assemble the project on a pcb, does anyone have the links to related components?

[@GustavoTruchoman]

hola, una duda, yo no tengo el echo dot... porque la app del telefono no detecta por si sola a la ESP8266 sin el echo dot?

[@r.pranay4486]

I think there is no difference between code for buttons and code for switches.so can we upload any 1 of them for both?

[@proč4033]

Jde to pak ovládat podle času, jako časový spínač?

[@souravjyoti1994]

This project hv one problem... after boot up its need to connect wifi at Least once... then remote or manual mode works...no matter now wifi connected or not... but if ifter boot it left not connected the no modes works...

[@iamrafic]

Are you selling your PCB's, I would like to buy.

[@rhodiumindia2066]

Programming the ESP but Alexa app not found it. I try searching in 10 time sir please help me why it problem.

[@animeshmondal4506]

Sir, will it work with 16 nos of relay?? If it then make a video on 16module relay kit.

[@vardhamanmohan8451]

How can i flash my esp showing error like size reduse sketch code error

[@AlexandreEglit]

Could you please make an automation video being a garage gate with course limits (Gate fully open and fully closed) with ESP32 and NodeMCU ESP8266

[@marathiman7563]

Its really amazing and thanks to share all this very helpful things with us. Can we do same thing with sinric pro.

[@TechStudyCell]

Already made video with Sinric Pro ESP32

[@shintotony6766]

Can you build the same project using FIREBASE instead of blynk? It would be very helpful ☺️

[@TechStudyCell]

Okay. Noted

[@mdsiyam3153]

I don't have an Echo with me.....What can i do so.......?

[@jmarkgaming3627]

Hi Friend Im one of your subscribers Can you please make a video also with LAN Base Internet Controller. Thank you and God bless

[@pritamrex8450]

After sync all the device can we work with Alexa from the other network

[@madhavana3882]

Sir super...

[@TechStudyCell]

Thanks

[@melvinpaneda9226]

4 relay module only, is it possible.?

[@dipaksonone2917]

Getting error 'class WIFICLASS' has no member named 'mode' .......plz help me sir... please

[@debrajsaha8503]

Can we add google assistant without sinric or ifttt?

[@jituicechill]

"Cannot connect to wifi. So manual mode" their is a bug here if initally we dont conntct it to wifi we cannot use the manual mode. If used the IR remote button program crashes with an error Guru Meditation Error : Core 1 panic'ed (loadProhibited) Any solution??? Thankyou 😀

[@ujjwalkumarmahato8006]

Sir i am not able to get the HEX code please help

[@ankitrana007]

Thanks for such a great video. Can we use Node Mcu instead of esp32?

[@TechStudyCell]

Yes. But with NodeMCU you can control 3 relays. Will make video on it

[@gustafabengetsitumorang5376]

how to change the sketch if using the Arduino mega wifi robotdyn board? Thanks

[@smithinm3217]

I need control 4 device via alexa, Google voice and manual switch. Not via any 3rd party app directly via alexa, google Can you please share the information above requirements.. please.. I have seen a video but its for 8 device

[@prafuldate2881]

Thanks for the video bro.In your first code of ir hex generator the 9600 baud rate do not work, 115700 is working please correct me if I am wrong.

[@TechStudyCell]

Please check the baud rate mentioned in the code, then select.

[@AdnanShaikh-ww3pp]

ESP_RMAKER_PARAM_RANGE was not declare in this scope error 😭😭?

[@chipmaster3031]

HELLO I LIKE YOUR PROJECT. HOW DO I USE ANY WIFI WITHOUT HAVING TO PROGRAM ARDUINO THE PASSWORD AND USER. HER THAT THIS PANEL OF YOURS CONNECTS TO ANY WIFI?

[@isteevanmangalore9171]

Please make video on gsm module

[@TechStudyCell]

Okay

[@sampathkumarspace9162]

Zero crossing issue is there please check that and solve, if it's there then we can't using permanent esp8266

[@Gavriel079]

I tried with a VS1838 and it didn't work :(

[@atharnadeemshaik2000]

Hi..your video is awesome.. Is there any library for google assistant like the you have used for alexa integration..Can you make a video on integrating google assistant with esp module without blynk r adafruit r without using any 3rd party integrations..

[@TechStudyCell]

Sorry. Still I have not found any alternative for Google Assistant

[@pranatabhowmik9458]

Please try to do so for Google mini users

[@yasiromenacho5694]

Muy buen proyecto como seria para ponerle un acces point

[@allawi_jalal1596]

Is it possible to automate two or more rooms... and connect them to one Alexa echo dot device???

[@TechStudyCell]

Yes

[@allawi_jalal1596]

@@TechStudyCell I mean, if I create two automation projects for two rooms like this one I did and give each switch a name that distinguishes it from the other, will it work?

[@vishaljaiswal6021]

Can you build the same project using multiple esp32 pls..

[@TechStudyCell]

ok noted...

[@aniketpol1502]

Hello... I want some help from you... Is there anyway where I can contact you... It would be awesome if you can clear my doubts and guide me

[@TechStudyCell]

You can ask your doubt here.

[@gadget_vishwa]

Bro plz make this project to control without Alexa echo dot

[@harvinlabor5615]

Time out waiting for packet header, even i selected DOIT ESP32 DEVKIT V1

[@suryasurya-kl1ug]

Can we use google assistant instead of alexa device

[@TechStudyCell]

No

[@homeplex]

Sir now please make vedio with firebase

[@TechStudyCell]

Okay. Noted

[@rhodiumindia2066]

Alexa no search the devices. And I also try different time

[@homeplex]

Thanku nice ..can you please make home automation using firebase realtime database with manual fedback system ....

[@TechStudyCell]

Yes, sure

[@homeplex]

@@TechStudyCell 🥰

[@danielbobadilla624]

nice, can it also be done with google home?

[@TechStudyCell]

No

[@ajishkhantm6147]

Sir Is it possible this works without the echo dot

[@TechStudyCell]

No.

[@vishnuraj1503]

Will the manual switches work if the nodemcu is off ?

[@TechStudyCell]

No. You can control appliances from switch without internet

[@dipaksonone2917]

IR not working

[@sumiyakmuhammed924]

Does this work with Google home

[@TechStudyCell]

No

[@calcioelavoro333]

Ciao bel video non ci sarebbe un modo per trasmettere in italiano ..👍

[@igiReturns]

I want to connect extra blue led for wifi connection and red for wifi disconnection by gpio pin please help

[@nurnahidrahaman]

Wifi not reconnecting automatically please help

[@nurnahidrahaman]

Make a code.for reconnecting wifi automatically, This project is awesome the only issue is auto reconnection..

[@TechStudyCell]

It may take some time to reconnect.

[@dpelectronics5688]

Error = Class WifiClass 'has no member name 'mode' please help sir

[@dipaksonone2917]

Same here bro

[@montushmalakar7187]

(r1-r8) iska matlab kya hai

[@ersheikismail8293]

is it possible to do blybk + bluetooth + ir in node mcu esp8266

[@sairambattu4019]

Esp8266 don't have Bluetooth...

[@sangramtripathy3773]

Can we close the Alexa app in mobile after all the devices are connected?

[@TechStudyCell]

Yes. You can close the Alexa App

[@sangramtripathy3773]

@@TechStudyCell Do I need to reconnect all the devices again if I turn off echo dot??

[@ronakjavia4482]

Hii Remove push button in custom made pcb and add HILINK AC to DC PCB Mountable Step Down Power Module DC 5V so

[@rohitpawar2394]

tt go t call door sensor on blink app

[@kpinnovations6613]

Very nice project sir Can we add Node MCU Esp8266 in place of esp32 what are changes in code.

[@rohitpawar2394]

fan dimmer on alexa using ESP 8266

[@pavankalyankunapareddy3485]

This project is work on esp8266 ?

[@TechStudyCell]

you have modify the code and circuit for ESP8266

[@pavankalyankunapareddy3485]

@@TechStudyCell pls Share the circuit and code for esp8266

[@dipaksonone2917]

Same coding can be use for nodemcu 8266?

[@TechStudyCell]

No.

[@dipaksonone2917]

@@TechStudyCell can u provide coding for Nodemcu 8266 for this project...plz request

[@dipaksonone2917]

Sir plz give me for esp8266

[@dipaksonone2917]

Sir plzzzz make same with eps8266

[@dipaksonone2917]

sir plz give me code for alexa with IR for nodeMcu 8266...plz sir must replay

[@rohitpawar2394]

Using ESP8266 bord

[@TechStudyCell]

Ok. will make video on it. You can also check kzbin.info/www/bejne/hXuXdK2NrreEqJY

[@ersheikismail8293]

blynk + ir on esp8266 is possible plz make video about it

[@ambarkohad8376]

Kindly provide complete code

[@TechStudyCell]

You can download the code from the article. Link given in description

[@thavacitamil4092]

Hello friend, I am watched ur all home automation vedios :) .pls help me in our house we building a big home automation and I am want Google assistant+blynk+bluetooth+infrare d pls we trust u a lot pls help us

[@thavacitamil4092]

Pls my friend help us

[@madhavsuttraway7114]

Sir I want PCB and I pay you

[@TechStudyCell]

Please send email to [e-mail]

[@dhananjaiks4112]

😂😂

[@thatiotguy8837]

Please, something else than home automation. It's not much interesting now. Peace.

[@avijitvikram8449]

Help Sir I m e-mailing U, Please reply & small help me 🙏