NodeMCU Sim800L Relay Control with SMS | Esp8266 GSM Based Home Automation System

This video is about NodeMCU sim800l relay control with SMS | esp8266 gsm based home automation system. I will show you how to connect sim800l GSM module with NodeMCU and control home appliances by sending SMS to GSM module. I did not use any library to control sim800l that's why you will be able to use other simcom GSM modules like sim900. This GSM based home automation system with esp8266 can be used in different places and you can control it from anywhere in the world.
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Hardware Components
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if you want to install NodeMCU board in Arduino IDE then you need to watch the following video.

#sim800l #NodeMcu #esp8266

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Useful Video Links
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SIM800L AT Commands

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Social Media Links
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GitHub:
YouTube:

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Download Code
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Disclaimer
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Disclaimer: All videos are for educational purposes and use them wisely. Any video may have a slight mistake, please take decisions based on your research. This video is not forcing anything on you.

Warning: I will use High Voltages which if incorrectly or improperly used could result in serious injuries or death. So be careful of what you are doing because I will take no responsibility for any of your actions.

Warning: In some countries it is required to register gsm module from govt authorities before using it. So, get proper understanding of govt laws related to gsm technologies.

[jagannathkulkarni]

You are simply the genius. simple and effective tutorials. All the data made available to the viewers to experiment with. Thanks a thousand times.

[abobobo]

Awsome. Very interesting. Thank you Sir

[Rizkisaputra-jzjq]

Hi Mr i would like to say thanks for this vid cause my project running well..but now i have issue about the esp not running sketch when power cycle, mean that i need to push esp button rst for make it work, do you have find it and how you fix it 🙏

[kieferjohndumpit]

question dont know but yesterday it was working with the same code now its not? is there any issue using sim800l with node mcu

[Luismaia]

Mr Ahmad Logs can i power with wall socket instead of battry like you shom on image? thank you very mush.

[sanfnar]

Is there blynk cloud base project on nodemcu and gsm 800l

[dztdzt]

hello, nice video.
i want to ask, is it possible if i'm using esp-01 instead nodeMCU ?

[washpakistan]

Do you have any video on home access using ESP8266 and fingerprint sensor...

[blynksteel]

hello my Friend i want to ask you why the communication bethwen sim900a and arduino disconneted in some time, anser me plesse

[tusharkarande]

Dear Sir, If i am using power adptor for sim 800l.and if power cut off.so what will happen when power ON. current state is recalled or not

[mortenkallesen]

I'm getting the following output from serial monitor :
14:58:45.953 -> SIM800L software serial initialize
14:58:47.943 -> AT+CMGF=1

14:58:47.943 -> OK
14:58:47.943 ->
14:59:06.837 ->
14:59:06.837 -> +CMTI: "ME", 29
14:59:06.837 ->
14:59:07.931 -> AT+CMGR=29


14:59:07.965 -> +CMGR: "REC
14:59:08.031 -> Relay1 on
14:59:08.031 ->
14:59:08.031 -> OK
14:59:08.031 ->
And then nothing happens. So it is recieving the message, but does not turn on the relay. The relay pin stays low, I have measured it.

[mathiasrodriguez]

buenas gente para los que no les funciona el código y llegan los mensajes perfectamente pero no cambia de estado el pin deben cambiar la linea de codigo senderNumber = buff.substring(0, 13); hay que colocar (0, 12); ya que con 13 lee una comilla al final del numero celular y no iguala.

[mehedihasan]

I want to use "NodeMCU 1.0(ESP-12E Module)" as Board but its showing error in #Define rxPin D4 !!! Is there any solution from your side of this problem?

[nabillafarra]

Hi sir. Is it possible if I want to use this code to send a message whenever a certain angle/acceleration is detected by MPU6050? What shall I exclude from the code above other than the relay (pin D0 and D1). Thank you and have a nice day ahead sir!

[danielgormanhammond]

Nice work. Please I need your help. I'm using ESP32-WROOM. I try your code and it is not working

[shivamrajpoot]

Bhai, would you please make details sim800l and esp8266

[-anonymous]

Please make same project starter mode.only 5sec on after go off

[tumtam]

good morning bro, to take balance sim by ussd code with esp8266, can bro show me how to do? Tks bro

[jesusricardogonzalezmontie]

hello, i have a problem with the code the ide arduido saw than the code have a problems the first mistake is than the word "cadena" not is define and other mistake is the word "definir" can you get up the code again please

[Luismaia]

very nice work but when onload say D4 not declared