Arduino Sim800l Relay Control with SMS | Control Home Appliances with Arduino and Sim800l

This is a very simple project based on Arduino and SIM800L GSM module. You can control electrical home appliances by using SIM800L that is connected to a 2 channel relay module.

In this tutorial, you will be able to use the SIM800L GSM module for controlling anything through SMS. To do that, you just need to parse the incoming SMS from SIM800L extract message. After extracting the message Arduino will control your home appliances according to received SMS.

There are lot of GSM module available in the market but I personally recommends and prefers SIM800L due to its small size.

#Arduino #Sim800l #ArduinoTutorials

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Code Download Link
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Parts Needed
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4 - Mobile Charger 5v 2A
5 - Two Electrical Bulbs
6 - Jumper Wires (Male-Male / Male-Female / Female-Female)

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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: 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.

High Voltages be careful

[ubaid]

Bhai is main pc add kar k rakhna pharega kiya programming upload kar k pc hata k power supply se used kar sakhte hai naa???? Number mil jaega to bohat help ho jaegi main bhi pakistan se hun

[gerardoscotta]

Muy buen proyecto y bien explicado. Gracias

[mamalymamalian]

Can outputs be momentarily disconnected and connected?

[davidacostagarcia]

Excuse me sir, everything works great but if I add a digitalRead in the void loop the messages dont arrive, like the communication is affected. How should I implement that without affecting the serial comunication?

[jonasmaghanoy]

Woohh impressive sir. So cool. How I hope I could study deep the coding, kind'a hard for me to learn. I'll try harder to study this one. Thank you sir for making such innovative tech. ❣

[rajaduraisangari]

Dear sir, how to turn off the relay after 3 seconds automatically? Pls change the code for me thanks

[rajaduraisangari]

Dear sir, I have two questions 1)when gsm sim 800 power on, i need to received message, because here power cut 4 times per day,
2) how to change the mobile number from SMS.

[neeleshprince]

Hi how to modify the code if i what to trigger relay by missed call?

[glob.entertainment]

Ahmad, please, if do I need to change the sim800 function in your code to sim900 if I am using sim900. Because I'm a bit confuse. FYI, I'm using sim 900

[rajaduraisangari]

Hi sir, when we received reply message, need the date and time together with notification,
How to add the code in CCLK?

[mdsharifulislamsharif]

Hello,
Please, Can you give a Arduino code that two relay 'on' only for 1 minute and 2 minutes when i send 'ON' through sim900a

[mustaphajammeh]

Hi, how can I integrate relay with the GSM module to send me messages.

[dabbarmohsen]

Hi mister
I followed the connection diagram and uploaded the code but the arduino does not receive the sms
02:31:27.728 -> Arduino serial initialize
02:31:27.728 -> SIM800L software serial initialize

02:31:31.764 -> AT+CMGF=1

02:31:31.764 -> ERROR
02:31:31.764 -> AT+CMGD=1, 4

02:31:31.764 -> ERROR
02:31:31.811 -> AT+CMGDA= "DEL ALL"

02:31:31.811 -> E

[oet]

thank you sir, i have some questions, i have sim900 and i connected every thing right, and there is a communication between gsm and arduino everything is good except the light is not turn off or on and there is no feedback sent from gsm to the sender phone as (relay has been off or off ) , what is the problem ? all i did is i change the pin of rx and tx to 7 and 8 and i change the pin of the lights please help and thank you alot note : i didn't connect relay yet, im testing in leds lights

[chidiayoanasonye]

Can I power the arduino using same 5v adaptor ?

[rajaduraisangari]

Sir, gsm sim 800l with Arduino relay control by agriculture motor, how to connect the CT coil for low or high Amp motor will turn off motor, need the CT coil connection diagram and code, thanks

[moussaab]

Please, I have a GSM working on 4 volts, can it be connected to a 5-volt Arduino power supply and put a resistance to reduce the voltage

[rajaduraisangari]

Dear sir, 1)I need to receiving the message automatically when sim800L power On .
2) how to registered the master mobile number and how to change the mobile number with SMS,
3) can store the 2 no’s registered mobile number?, thanks.

[chidiayoanasonye]

Plz sir which phone number should I put in the code ? . The sim inserted in the sim800L module ? Or my personal phone number in my phone ? .
If my personal phone, how can I add up to three phone ? numbers

[marif]

sir Arduino programing ki koi Urdu main books available hy