IoT Project using ESP32 Google Assistant Blynk with Timer & Sensor | Home Automation System 2022

In this true home automation project, I have shown how to make an IoT project using ESP32 Google Assistant Blynk with the timer, sensor, and IR remote control relay with real-time feedback. You can also control appliances without internet from IR remote and manual switches.
PCBA from $0 (Free Setup, Free Stencil) jlcpcb.com/RHS
Download the PCB Gerber file for ESP32 IoT Projects
iotcircuithub.com/wp-content/...
Video on NEW Blynk + ESP8266 + IR + Sensor: • ESP8266 Project using ...
For this ESP32 project, I have used the FREE plan of the Blynk IoT platform and explained all the steps to use Blynk Automation to control the relays with sensors and timers.
During this Internet of things tutorial video, I have covered the following topics:
00:30 Control appliances with Google Assistant Blynk & IR Remote
01:12 Controlling relays with DHT11 Sensor and Timer.
03:21 Required Components for the Blynk ESP32 IoT project.
03:36 Circuit of the ESP32 IoT Home Automation projects.
06:04 How to set up Blynk IoT cloud for ESP32.
09:53 Source Code for the Blynk ESP32 IoT project.
12:51 Set up Blynk IoT Application Mobile Dashboard.
13:57 How to add Automations in Blynk IoT (Timer and Sensor )
18:52 Controlling relays from Blynk App, IR remote, and switches.
19:17 Connect Blynk cloud with Google Assistant using IFTTT
Required Components for this ESP32 home automation system
1. ESP32 DEV KIT V1
2. 4-channel 5V SPDT Relay Module
3. TSOP1838 IR receiver (with metallic casing)
4. DHT11 temperature sensor
5. Switches or pushbuttons
Amazon India Affiliate links:
ESP32 DEV KIT V1: amzn.to/331pohb
4-channel 5V Relay Module: amzn.to/2BQ5Y3o
Amazon United States Affiliate links:
ESP32 DEV KIT V1: amzn.to/3mBjCch
4-channel 5V Relay Module: amzn.to/3r2HuJ4
Help my projects on Patreon: / techstudycell
Feel free to donate any amount: paypal.me/sdaspay
Download the Code for the ESP32 Blynk IoT project from the following article:
iotcircuithub.com/iot-project...
Previous Videos:
Blynk IFTTT Google Assistant: • ESP8266 Project using ...
Get the HEX codes from IR remote: • Smart Home with Amazon...
Steps to program ESP32 with Arduino IDE: • Programming NodeMCU ES...
Important Links:
New Blynk IoT Cloud: blynk.cloud/dashboard/register
IFTTT sign up: ifttt.com/join
Important points:
1. You can turn ON/OFF the automation anytime from the Blynk IoT app.
2. IR receiver sensor must have a metallic casing. Otherwise, you may face issues while trying to get the Hex code.
3. The Blynk Automation will not work if the ESP32 is not connected to WiFi
4. You can control relays with 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.
To try out the FREE trial version of Altium, click here - www.altium.com/yt/techstudycell
During the tutorial video, I explained all the steps to make this IoT-based home automation system, and how to set up automation in the Blynk IoT platform.
In this ESP32 project, you can control the relays without internet from the IR remote and manual switches. ESP32 will automatically connect with the Blynk cloud when the internet comes back.
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
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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

[@delboytrotter7902]

Looks fab, all nice and neat, no ugly wires dangling about all over the place......i'm gonna throw away all my Philips hue bulbs and do this instead.....my wife's gonna love it

[@shock2k3]

your work is awesome and wonder.by doing your project in my colleage . i got 4 th place and i recieve many wonderfull wishes from staff and student's .this is becoz of u

[@Shivam-tr8ut]

It is very usefull project and i have been seen other your projects that's are also amazing and very usefull

[@victor7ultimate]

I just implemented this project following this great and carefully guided tutorial. Thanks a million.

[@TechStudyCell]

You are welcome

[@a.nareandhareprasanth138]

Perfect and very very nice bro

[@SC.243k]

Very professional work, Thanks my friend ♥️♥️♥️♥️

[@TechStudyCell]

Thank you too

[@Gavriel079]

Amazing project, thank you for sharing. Could you do a voice control of an analog signal, like controlling a servomotor position with google assistant?

[@a.nareandhareprasanth138]

Good job bro

[@srinivasrdn]

Very useful project 👍

[@TechStudyCell]

Thanks

[@sergejgulko6705]

Спасибо👍

[@warrobots3512]

Great project

[@TechStudyCell]

Thanks

[@muzaffarbashir4566]

Very well managed project on suggestion to add dc voltage and current measure as now a days all the home appliances are operated on dc voltage so on can monitor completely and some flaws are there in project when no internet is available for long device get hanged no control over push button as well as remote so we need to restart the device plz make this fix with updated virtual pins for voltage and current ...

[@burhanuddinbhiwaniwala618]

very nice but some off us would like to redesign the pcb according to our switch board and wall outlet.... please do share the schematic and not just the gerber file

[@vipinvg2048]

Single pulse like a push button I mean that latching in sonoff like

[@diaryiklanlucudiarylancu8367]

Nice video sir 👍👍👍

[@TechStudyCell]

Thanks and welcome

[@TechnoTrek_Gaming]

Bro I'm making this project If,I will face any problem than I can ask you. Thanks for the nice project ☺️

[@rubialugattimoreira1978]

Perfect

[@TechStudyCell]

Thanks

[@rollingstone4936]

Super video

[@pmgs6252]

Nice Project Sir, Can u provide the link of the Design Files

[@rollingstone4936]

can you please do ESP32 PCB design with 16 relays, IR, BL and wifi control, including 5V regulator. Basically only one ac in, and 16 switch control out. Controllable by IR,BL and wifi

[@Shivam-tr8ut]

Sir may you start playlist for IoT home automation. I want to teach from you

[@masudrahaman7497]

Wahooooooo Excellent 100 times

[@masudrahaman7497]

Love you my brother Love from Saudi Arabia

[@TechStudyCell]

Thank you so much 😀

[@saadlondonphone1658]

thanks for ur video , i have made some changes to use 8 relay , im getting error ""pin 5 not included in the scope " kindly advice

[@przoch5835]

very nice and useful project, very well and clearly explained - thank you for your great job :) I have a question regarding your sketch - what is "fetch_blynk_state" used for ? its value is always 'true'

[@TechStudyCell]

Please watch the complete video. If the variable is true, whenever ESP32 connect with Blynk, it will fetch the state from Blynk cloud.

[@HarbansSingh-ce2tm]

Good job bro.......

[@TechStudyCell]

Thanks

[@bharathn.9525]

@Tech StudyCell Bro, i just want to know that how NodeMCU will get signal abt the real time status of bulb whether its ON/OFF , Which Sensor u have used to know the Real time status of Bulb, fan, etc....

[@gedeonmuanza9795]

J'aime bien vos projets alors faites aussi des vidéos en Français pour nous qui parlons uniquement que le français

[@ahadhossain6927]

Bro I made a 6 channel home automation project for my college after watching your video. 🟢 Now I want to make another home automation project using 8 channels instead of 4 channels like this video, which will include google assistant control, 8 channel relay, temperature monitoring, IR remote control, manual control, blink app. 🙏🙏🙏 Please, please, please make a video like this.💝💝💝

[@TechStudyCell]

Please check last video on our KZbin channel

[@electronic7979]

👍

[@AAdnaanmtl]

Excellent work excellent explanation all flavors are available. Can you please add eeprom and dimmer then it will be complete home applicable automation ?

[@TechStudyCell]

Thanks. I have started working on it. But this may take some time.

[@keeper1855]

Thanks for video.Can you show us how to connect lora Ebyte e22 or e32 or sx1276/78 with esp32 or esp8266 to control relays?

[@TechStudyCell]

Okay noted.... Thanks

[@Dr_Khanz]

❤❤❤

[@BABATECHNICALKNOWLEDGE]

nive video bro plz make video tuya devlopment

[@TechStudyCell]

Okay

[@joydeepmondal5429]

can we increase the number of relays in this particular arrangement?

[@rallyworld3417]

Can you make a loop system like turn on 1 min and off and loop

[@wannurulizzah19]

What type of switch did you use? 5v switch?

[@mackieboy2698]

What is the alternative of IR sensor?

[@yuvarajnaidu476]

What I mean is, is it possible to make 4 channel relay and also universal ir remote using esp8266?

[@anandhurajeev4046]

Sir, pls uploade a vedio of home automation, it consists 16 Chanel relay, each realay control manually + IR+ BLINK

[@sainithin5485]

Bro please design a pcb for this to use directly on AC supply 220volts without 5v additional power supply

[@gimhanlktechnology]

❤❤❤❤

[@rushikeshkumawat1361]

Sir, I have 1 question. I have connected AI Thinker ESP32S module to 16 Channel Relay module. It is low trigger relay. So when I run the blink program of Esp32 ( No Arduino .Only Esp32 and relay module), using Arduino IDE, Relay should turn ON at Low and turn OFF at High. This action should repeat continuously. But the problem is When I connect relay pin to esp32 D2 pin, the relay is turned ON and always stays in ON condition. No OFF action happens. Please provide solution.

[@mominulislam8727]

Hello sir, Pleas make a video with esp ch340

[@Pola.Botros]

cloud we add an Arduino code when i press a button (ex:pin 5) for 10 seconds break the current process and create an access point to input WiFi-ssid and password and blynk authentication code then reconnect to wifi in-case i changed the WiFi credential

[@askentertainment7506]

Sir Can we control fan speed with home automatic system

[@yuvarajnaidu476]

Can u do the same with esp8266, and cadio app

[@danishbhai5920]

Great project sir thank you for this project Sir can you please help? Please can you make a same project but the on and off timer is in minutes format means 5 min on 5 min off and this will going in loop upto set time in hrs eg.6hr after 6hr the remaining 18hr timer will of and then again on for 6hr in loop 5min on 5min off

[@shadaankhan7629]

how to triger vooc charger without smart phone or how to convert vooc charger to PD charger

[@azrizahhar2119]

I wanna ask, The pcb board will not be damaged if given a 240V ac supply? please answer my question

[@Shivam-tr8ut]

Sir please replace GOOGLE Assistant with ALEXA and make a video

[@ayushkedari1566]

how to enable exposure to automation option it's not visible on our end

[@mackieboy2698]

Can we use 220v switch?

[@SadikTD]

Can I do this using ESP8266?

[@cygreeneye]

Very advance. Sir can you add 8 Relay This project. and Can you Remove IR remote option

[@iamrafic]

Bro, can you update this project to use only code with remote.

[@sumukha-infotech]

Thank you for the great video, i think automation option is not avilable for free Blynk users

[@TechStudyCell]

I have used free plan. may be they have changed the policy

[@Cookingstudiobyshahin]

After about 30-1 hours NodeMCU8266 wifi is disconnected. Without restarting the module, wifi is not being connected and apps are not working. What is the solution to this problem?

[@shijilt]

what is there is no internet or if the wifi is off ?

[@neelranade6322]

Make a same video just like this using esp8266 please

[@TechStudyCell]

Okay

[@Wffgcdewffkdhrhdb]

Can timer work when no internet ?

[@AmandeepSingh-hp3wr]

Hlo sir I had a esp8266, would this code will for it

[@bestcapturedscene1587]

Bro..... I appriciate your work but i need your help. I have to sumbit my project in collage of home automation using esp32 wifi+bluetooth+ir + temprature+manual. So could you provide me this same code with updated version using Bluetooth 🙏🙏🙏

[@TechStudyCell]

It is hard to add blutooth + wifi in same microcontroller

[@adamave3462]

how much did it cost in total for developing this projectt??

[@rabeeusman520]

my esp32 board is not reconnecting after lost wifii connection plz guide me to solve this issue

[@greg9978]

It doesn’t work the ir controller why?

[@a.nareandhareprasanth138]

Bro esp32 use 8 channel blynk iot app +Alexa voice control + manual ON and OFF switch control coding or video podugha bro please bro and coding send me bro please bro

[@ahmedch7297]

The function decode(&results)) is deprecated and may not work as expected! Just use decode() without a parameter and IrReceiver.decodedIRData. . i face this issue plz tell me

[@trisha2472]

Yes I have also same problem😮‍💨. Are u finded solution for this

[@sanctuaryjames3434]

Hello Techstudycell, I have been following your videos and I have made some of your IoT automations. I appreciate you for all these nice videos. In the codes for this automation (Both Latch and Button codes), when compiling the code, I received an error message about "BlynkTimer timer;" function, In the error message, I saw "Conflicting declaration BlynkTimer timer" please How can I solve this? Thanks.

[@bhaskarsolanki7266]

/storage/emulated/0/ArduinoDroid/userlibraries/IRremote/src/private/IRTimer.hpp:1373:50: error: missing binary operator before token "("

[@bhaskarsolanki7266]

I have also found this error

[@bhaskarsolanki7266]

Could u help me ?

[@sanctuaryjames3434]

@@bhaskarsolanki7266 I edited the code and got it working but I lost the code when my laptop crashed. I will try to edit it again and get back to you soon

[@vipinvg2048]

1) This timer will work WiFi is not available? 2) this timer can adjust particular date that ON and off? 3)it's also can the relay output as a single pulse ?

[@TechStudyCell]

1. No, 2. Yes, 3. Question is not clear. Please elaborate.

[@vipinvg2048]

Single pulse like a push button I mean that latching in sonoff like

[@vipinvg2048]

It's work with siri

[@shaktielectronics2234]

Sir Nodemcu with Blynk app+ Manual Switch+ IR rimote 4ch Home automation

[@TechStudyCell]

Ok

[@diaryiklanlucudiarylancu8367]

I.am request multipel sensor sir automation turn on off relay..humidity sensor turn on off..smoke detector sensor turn on off relay, pir sensor, manual swicth and blynk 🙏🙏🙏

[@TechStudyCell]

Ok I will try

[@actionfire3196]

Sir i have some questions... Can i contact with you

[@alodas663]

HOW TO ADD EEPROM FACILITY DURING POWER FAILURE?

[@TechStudyCell]

You can fetch the previous state from Blynk cloud

[@Shivam-tr8ut]

Sir es code ko ESP8266 m upload krne ke liye kya changes krne honge?

[@TechStudyCell]

Video on esp8266 will publish tomorrow

[@marvelfans0]

Can l make it using node MCU?

[@TechStudyCell]

You can add automation to any Blynk IoT project.

[@normaluse7671]

Can i try this code on esp8266 module ???

[@Vietnamcamping89]

Its working fine

[@zeroffyt8517]

Sir I want to add 8 channel relay in this project pls help me

[@zeroffyt8517]

Pls sir make code for 8.channel relay

[@bestcapturedscene1587]

Brother..... Code is not uploded on website yet. And not in description. Plz provide link of coding part

[@TechStudyCell]

Download link shared in description

[@bhaskarsolanki7266]

/storage/emulated/0/ArduinoDroid/userlibraries/IRremote/src/private/IRTimer.hpp:1373:50: error: missing binary operator before token "(" Sir i have found this error How can i solve it plz help🙏🙏🙏

[@gocchiase8785]

let's do solar blynk

[@sanjayyadav-rj1vb]

My brother, how much you paid for PCB?

[@ikramikie]

can we use arduino ide

[@TechStudyCell]

I have used Arduino IDE for programming

[@user-rx7tu8dt9q]

helllo sir can you share your code i can find you code

[@ghoumrassihafsa1574]

Does anyone here are working on this project?

[@alifzafri7911]

sorry sir you website is cannot open i can't to get the code

[@TechStudyCell]

Please try now

[@alifzafri7911]

@@TechStudyCell tq 🤗

[@mohiths6259]

@@alifzafri7911 Hi brother. Iam currently working on this project. I couldn't find the code in the website. Can you please send me the source code .?

[@sayansantra1420]

Please help me

[@TechStudyCell]

In which project?

[@amirtelecom6898]

@@TechStudyCell Please Notification is Free ?

[@sayansantra1420]

I not upload ESP 32 board on my PC so please help me I ordered ESP 32. My father is farmer . He purchase these boards so hardly then I not program, it this is a bad for me . I not learn these board how to use

[@sayansantra1420]

Sir sir please help me. I not program this boards please help me

[@sayansantra1420]

I try to contact for you . but I not contact for you please help me sir please I request with sorrow please help me please sir please🥺🥺🥺🥺🥺🥺🥺🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏

[@SunilChauhan-sg7re]

Sir please giveme password Garber file open

[@vipinvg2048]

It's work with siri

[@TechStudyCell]

No

[@ahmedch7297]

response me sir plzz

[@sayansantra1420]

Halp me

[@shock2k3]

bro use for multiple functions to implement it.two add more connection's with it

[@ssstudio1703]

Please add this into your code please and send me sir please // Checks Network connection status in every 5 seconds void Network_Checkup() { if (WiFi.status() != WL_CONNECTED) { WiFi.begin(ssid, pass); delay(10);

[@ssstudio1703]

Please add this into your code please and send me sir please // Checks Network connection status in every 5 seconds void Network_Checkup() { if (WiFi.status() != WL_CONNECTED) { WiFi.begin(ssid, pass); delay(10);