GSM Based Door Lock System - Arduino GSM Module SIM800L

Hi sir, does it work even if you have no load in your sim or the sim should have load on it?

what is the maximum range of distance it have ?

How i control 2 relay

what type of sensor is used in your ?
My project is GSM module based car locking system using arduino. So what type of sensors is used in my project ?

can i use SIM900a GSM module?

Mobile number kon sa dalna hai...Jo. Module me laga hai ki jise hum. Msg send karenge

Brother application konsi use karne ha?

Please, I need help. What number of capasitor should Im using if Im using 5V input voltage on the LM2596?

i love your video ahmad i just have question if i want to add more telephone number how can i do ? thnx in advance

Hi my brother.. Pleaz. Haw i can control the door with numbers registred in the card sim?? Thanks so much..

hi sir .. hum arduino Uno me konsha code upload he te dekh sakte he?
plzz ans sir..

No calling function

I think it is time to make videos about how to use esp32 timers and FreeRTOS. Also, we are waiting gsm ivrs system from you MR.ahmadlogs. Please consider our wishes. We need help in the subjects I have told.

Thanks in advance.

Code please

AOA Ahmed, I am facing a problem with SIM800l , I have non PTA module ,I am trying to know the IMEI of module using AT Commands ,powered module by 3.7v cell battery with ESP32 ,led is blinking continuously ,I have uploaded a simple sketch to communicate serially with module but at serial monitor its showing "SIM800L initializing......". and shows nothing when I run any AT command.Please suggest any solution ,

code ?

Hi thank you for nice project may you upload code ?

Hola desde México 🇲🇽🇲🇽🇲🇽

Can you combine the code of this video with the code of your other video called Advance RFID Based Attendance Systen Using NodeMcu Version 2 | ESP8266 Google Sheets?

Great job Ahmad! Love your videos! Simple and to the point.

Nice project
Thank you 👍👍👍