DTMF | Arduino SIM800L Relay Control with SMS | SIM800L Register Phone Number by SMS

#Arduino #SIM800L #HomeAutomation

This is the part 2 of my previous video, in which we have learnt to control Relay, and Registering Phone Number, by sending SMS". I have made some changes in the code, to extend the functionality of the project. Now, I have added the DTMF feature. and you can control the relays by sending sms, as well as, making call to the project.

Parts required for this project

Main Features of the Project
1. Register Phone Number by SMS
2. Control Relay By SMS
3. Control Relay Using DTMF
4. Automatically Deletes Stored SMS in SIM800L Storage
5. Check Relay Status using SMS
6. Delete or Change Registered Phone Number
7. Send USSD code from Serial Monitor

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Useful Video Links
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Part 1 of the video

Control Home Appliances with Arduino and Sim800l

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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.

[dondon]

the best of all video.. please keep posting.. i am watching over and over until i learn

You are the best ever in YouTube thank you so much my brother god bless you 🙏🙏🙏🙏🙏💖

[nithurshan]

Great explanation sir, thank you so much sir

[moorthymoorthy]

Nice job bro, very useful project
Can you please add IVRS to this project,
Interactive voice response system.
To reply as relay1 on, relay2 on, etc...

[guruvelsarveshwar]

Have you the code for delete sms in sim800l please
The AT commands not working properly

[electricalworld]

Greetings to you for your great effort I downloaded the code and it works for me, but the dtmf does not work for me from the first time I press the button, like you, I need to press more than once until it responds, why is this Second, does the memory space mean times to record numbers, and do not mean to turn on and off the hand?

[rampage_xdit]

Thank you very much for you attention about EEPROM, May you add confirmation ricieved with replay sms to code ?
Regards

[ahmedtaher]

It is really a great program and very practical I want to add the GPS part with this program, meaning that when I send a message, GPS on sends me the coordinates, or dtmf sends me the coordinates is this possible

[s.husain]

Nice projecr sir please add voice feedback when call is made

[-anonymous]

Sir I'm facing some issue after uploading code serial monitor only trying to initialise sim800l and print sim800l not ready how to resolve this issue

[LesterJhonDiestro]

hi. can you help me on this code? my gsm module don`t response when i registered my contact number.

[h]

Hi, it was great
But it gives an error code, what is the problem?
invalid conversion from 'const char*' to 'int' [-fpermissive]

[Narita]

Some time ago, I made a long test with cyclic full write + readback + check of EEPROM in a loop. I wanted to reach a point when EEPROM is damaged and can't be used.
For about a month I made 30+ milions cycles W+R and data corruption never occured.
So, manufacturer says "Endurance cycles", but in fact they are much times more.
Note: My test was performed in office conditions - temperature ~25°C. Never tested at -10°C or +80°C.

[madnurkiuki]

hello bro, how to automatically turn on and off with the range of connection distance, bro, so I need a project if the nano module is with my cellphone then the on button will automatically turn on, and if the cellphone moves away it will turn off, thank you, greetings brotherhood

[masoudjafarzadeh]

Hello Ahmad Khan
I will add my own conditions in the loop section of your registry program number, such as digital or analog sensors
It works a few times and the del and R = ... list commands work but it crashes after a while
How can I solve this problem?

[srmechatronics]

i will send sms R but serial monitor showing this number not registered what to do

[rajanichaudhary]

I want to make this project with one relay module

[zanaesmael]

Hellow dear iam from iraq, Iam test this project phone number registered, SMS worked for control relay, but DTMF Is not work please help me.

[sunilbajar]

sir ji sms relay good work but dtmf no work

the phone number not registered show

[eearning]

Hi Can you please explain the mobile number registration code in detail, as it is not registering the Number as per procedure given in the video.