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

Working fine with SMS but by call only ringing... Plz help

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

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

Great explanation sir , thank you so much sir

sir ji sms relay good work but dtmf no work

the phone number not registered show

Hallo sir I want ATD COMMAND TO STORE PHONE NUMBER

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

sir can i use 8 channel relay module...
please give me arduino code🙂

dont try this project is not working.

Dear sir the code provided you is not working

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.

how delete work register number ?

hi please answer in serial monter show me phone registerd but not answer why?

Hi Sir, it's not working...
While I send 'R' comment to the module no response from the module.
And also for all msg's no response and relay doesn't on

can i use the same code in my gsm900?

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

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

I can we use 4g sim jio 4g vi 4g

It's not working, sir. is the problem with our country's phone number

How can Integrate blynk to it?

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

Please friend help me i i want control dtmf relay bu once need register by sms but any number can send sms to regsiter in the code not writing any number u can?

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

Sir..
Way my upload code in my arduino not working,at serial monitor have note +CMGR: "REC UNREAD","+62813XXXXXXXX", " ",

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.

Help emergency

Hii
Sir

Can you please make a video on how to encrypt the code in esp32. Or how to make a firmware from the source code, to protect the code from being read.

Great project, I have an esp32 with Sim card but it uses a lot of data, thinking of trying text and DTMF, Cheers

Message control doesn't always work well?

My friend, please, if you have a device code. servo motor control by sms thanks

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 1000000 times to record numbers, and do not mean to turn on and off the hand?

Sir water pump ke liye koi project banayyena jo over current or dri run se off ho jaye register number se on off hoo

Sir current sensor wala kya huaa

Sir great

System do not reply sms

Reply sms not work 😥😥
Why

sim800.print("AT+CMGD=1,4"); is not working in my case, I mean it is not deleting my sim's inbox. Sim keeps memory full, if I manually send that AT command then it deletes but not inside the loop program
And I'm not getting Confirmation feedback msg, but the action is executed.
And if I call to access DTMF service from registered number, it shows as 'The phone number is not registered' in serial monitor.

Need some extra paid changes kindly contact via email

Why is he not receiving an SMS reply?
Do I need to set up the SMS center number? If so, how to do it?
Greetings :)

Your are the best sir
Plz share your what's app no

LoRa 10km remot control

Thanks

please this product convert to esp 32😍🙏🙏😍🙏

please this product convert to esp 32

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 100000 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.

aap k as project ka code description ma nhi hay
Please comment ma link send kr de

bhai jaan please as code update kr ya comments ma send kr de..

Bhai jan code is not available in discreption 🙏🙏🙏🙏🙏🙏 plz show code

Good job can share the code please brother