SIM800L with arduino Tutorial. How to send, receive SMS and make a call.

This is tutorial about how to use SIM800L GSM module with an arduino. It uses only ATCommand without library.

There are so many GSM modules that came to market right now. And SIM800L almost the cheapest. It cost under 10$ and has the same feature as other. In this tutorial, we will examine how to use this GSM module with an arduino.

Still have problem with your SIM800L module? here's the solution :

You can find full tutorial and code here :

Music :

[miliohm]

I made mistake when drawing the wiring diagram. I should connect the VCC of SIM800L to 5V, not 3.3V. But it's better and safer if your power supply no more than 4.2V. 4V is the recommended voltage.
And if you are still have problem with your SIM800L. here's the troubleshooting guide :

[creedsolutionsgroup]

@miliohm: I'm surprised your SIM800L module even worked seeing you had it running at 3.3V. My understanding is that the SIM800L requires at *least* 3.4 volts and it's recommended to run at 4V.
Thank you for the useful video!

[righthire]

sir module did'nt perfome any action sim 800l light blinking, arduino code uploaded all data correct no sms recvie on my number

[hoangvannghetvt]

Thank you very much. I have a headache because of this problem for 2 days

[Babzz]

what are the specifications for the sim card for this project ?

[ajayrawat]

I dont know why my gsm is not sending any message even though it is working properly... The light is blinking after every 3 seconds. Can you tell me what could be the problem

[herikalaka]

Please I have problem when I send message, I receive this message <<Contenu non pris en charge>> what the problem

[bourasihabe]

Question : when making a call we should receive "ringing ringing" on serial monitor as a result?

[markneiltanap]

how about sending a link to message using sim8000l i tried it but it's blank on message on phone is there any something special character for it?

[reillyannecena]

I tried it on arduino beetle and change the pin number TX (1), RX(0), but it doesn't work

[amirqane]

hi, it is better than to use a regulator when work with a sim800l

[nurhana]

I want to ask .. kenapaa ya AT Command saya ngak keluar pada serial monitor .. tapi call and send msg jalan sperti biasa .. cumaa ngak tunjuk the At Command

[rahilsaifi]

Sir, if we send the message from sim800l to android phone, then that show does not happen, please reply me.

[FatnqMop]

Thank you for this video
Can you please tell me what I should type after s

[didiersee]

Hello watht's difference SIM800L and SIM800C?

[jairamvutukuri]

is it possible to make a call more than 1 phone number using these modules

[Knowone-ok]

Sir i want blink led through sms tell me how can I do it

[pateldhruv]

My module received message but can't send a message so help me waht I do

[abdallahhatem]

how can i interface sim800l with pic 16f877a ? can you help me

[liridonosmani]

I am using a giffgaff 4g but it is not working, help me pleasee!!