Sending and Receiving SMS with a SIM800 GSM Module - Tutorial (#124)

muchas gracias, colocamos un capacitor a la entrada y todos los problemas se solucionaron

Does this module support SMSCaster for windows? Or any other GUI app

Hi ... Great video !
Can the bell output be fed directly into arduino digital port to detect hi/low .. I want to trigger a relay and operate a factory analog bell ..
Thank you
Paul

I gave mine 5V with a 2200uf capacitor, and thicker power cables. Since then it had not failed.

Its not taking AT commands...plz help

Do you need an activated SIM card from a cellphone carrier in order for this to work?

Very interesting and insightful. Thoroughly deserving of my rare subscription. Great channel to help me in my efforts to learn microelectronics. Thank you ! ... 🇬🇧

I spent 4 days to recieve any response to my AT commands. I tried all baud rates and can't get any response from module :( even I bought USB-ttl and doesn't recognize my module too, don't know what to do else..

I have found the flat antenna is useless, change it to a good one!

So is there a library to redirect messages to browser ?

i check with postpaid sim card and send massage to 5 mobile numbers but some mobile numbers received blank msgs.and some are able to read. if i insert prepaid sim card it works well
what will be the problem?
Thanks in advance

A 1000uF capacitor doesn't work but it does work when it is a much larger 2500uF 25v cap I can get mine to connect to the network.

is there anybody who can put this together, with the wiring and the programing, using the sim800l, module, the arduino pro mini-compatable 5v ATmega 328,16MHz board,and MP1584 adjustable 3A dc-dc converter stepdown buck regultor UK,,,,somone pleas help... thanks

Hello, I wanted to ask
If we use the sim800i module, can we use Bluetooth headset?

The wifi module uses carriage return and newline. Does this only use carriage return?

Hello brother, I want to ask you about the sim800l electronic part. I am doing in a project and there is no broadcast. What should I put a SIM and it is in my city 2G or 3G? Thank you, brother. I hope you help as soon as possible

Hi I try use sim800L with Arduino I success send SMS and Call but I can't receive SMS

Can anyone of you tell me,why sim 800L,why not other gsm modules,what are its advantages and disadvantages?

Thank you, after spending 10 hours trying to make it work without external battery, adding 1000uF capacity solved the issue, and now I can run it with the 5v pin from ESP32 directly

Im just looking at mine again, 2A gulp, that wasnt mentioned when I bought mine that could explain a few things. Bought a nice gui from someone for like $1. will dig it out. Im going to have to subscribe., Oh and overvolting can cut the RF but not the core, yes. ive just ordered a second module. .its suggested not to power without an antenna load , could overvoltage and pop holes.

Great! Nice troubleshooting there!

Hi! Nice video very helpful! Could you please specify how you soldered the capacitor? I have a sim800l v2.0

Great job! I've a question. Can this module decode non-audible DTMF signals, As I tried to make a call between many phones and test DTMF and I couldn't hear keys tones during the call and this caused by operator network not mobile phones side.

Can I am using this cctv and NVR

Excellent!

Hey can u do a video on Sim800A please..it will be so helpfull..

Great video, pointed me in the right direction. Things I had to do to make mine work:
1- Raise a bit the voltage, from 3.3 to 4V (added a diode between the 1117 regulator and gnd)
2- Put a 470uF cap between Vcc and GND
3- Connected DTR pin to gnd (this make the module answer consistently)

half of video waste of time

+CSQ: 0,0 :( any feedback? please

Hi...is this module reliable for industrial applications? Have u ever tested these GSM modules by running them for some days, weeks or months?

Helloi have a problem with my sim800l on my arduino IDE I sent a message and the arduino serial shows me that the message have been sent but the receiver doesn't get any message
Can you help me with?

Great informative video thanks.
I too have used this module and had similar issue. Like you say, I think it’s down to the thickness of the wires. It would be good to see a video illustrating this. Also a popular video would be if you include a gps module with the Sim800L you have a tracker.

Hello help me.
I need to send SMS with timestamp

Frustrating little things aren't they, I believed these are 2G only. I only have one provider here which is Vodafone, after several Sims this seemed to work