Tutorial: How to use SIM800L GSM Module with Arduino
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- Опубликовано: 14 окт 2024
- #TechToTinker There are actually a lot of GSM module available in the market but I personally recommends and prefers SIM800L due to its size and simplicity. It has a small footprint so it occupies a very small space. This is because SIM800L only provides the basic core of GSM. Meaning to say, you need to provide additional circuitry in order to use it. But don't worry, I will show you the simplest way to use it, so stay tuned.
Links to the source code:
techtotinker.c...
Links to another SIM800L tutorial:
• TUTORIAL: How to use S... How to make voice call
Links to use SIM800L DTMF capability:
• Tutorial: SIM800L DTMF...
Links to more detailed tutorials application / project:
• Tutorial: How to use S...
OR you might interested in using ESP32 and a MicroPython instead:
• 014 - ESP32 MicroPytho...
PURCHASE LINKS:
Arduino Uno R3: invol.co/cl2ifv7
Arduino Uno orig: invol.co/cl2ifvw
SIM800L: invol.co/cl2ifwm
Breadboard - invol.co/cl2d98p
Dupont jumper wires - invol.co/cl2d990
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Thank you and have a good day.
Thank you a lot!!!
You saved me, and my Brain.
I haved tried to connect this module hundred times and read many instructions, but nothing
But you said "Just connect RST to pin4 and will be OK"
I don`t know, how it`s working, but... it working!!!
Thank you and many best thanks from Russia!
Hello @Dmitriy Teslenko, I am glad that you successfully able to make it work for you. If you have any further concern, just feel free to message. Thank you and you are most welcome. Cheers, George.
Wow! Pin 4 is not mentioned in code! How is possible it works??? I musto to try it tomorrow. I have still problem with getting provider signal and there is no communication via serial (AT commands).
At 11:16, You sent sms: Hello SIM800L, but on the serial monitor we see Helo SIM800 - with out L on end of line. Why?
Sir i have Airtel 4G does it work with that sim800l please tell me about it...but the video and explanation were perfect and nice🙂
No 900 use hoga
Thank you for this beautiful code. Please, what could have gone wrong? My serial monitor was stucked at "initializing"
hello, since sim 800l is for 2G networks, is it compatible with a 4G/5G sim card? Is there any specific voltage it might require to function? Thank you.
@john jose dela cruz, 4G/5G is commonly designed backward compatible to 2G. 3.4 to 4.4V is the supply voltage requirements. GPIO is 2.8V logic level.
yes for 4G but not support LTE 4G
www.technoelectronics44.com/2020/11/gsm-sim800l.html
@@TechToTinker wait , so it may work on 4g sim?? Y/N??
@@sto.tomastristanmanuelt.7070 yes bro but only airtel
Yeah only Vi or airtel 4g sim is support, in sim800L
Hi George, (It seems that people are calling you by that name!) This seems to be a useful video. I have just bought this GSM module and will try it as soon as I am satisfied about safe voltage levels. I wanted to ask you why you had no problems with supplying *and driving* the module with 5 volts. I understand using a common silicon diode to drop the voltage by 0.6V for the supply. I will probably put a large capacitor after the diode to supply the burst current. But for driving the the RXD input, would a diode and a pull-down resistor be good enough? Have you some experience with that method? Many thanks.
@Mike Van In, I would suggest to better use a proper external power supply between 3.4V to 4.4V with 2A power supply.
For the Rx pin of SIM800L, you can use a voltage divider circuit to lower voltage level.
@@TechToTinker Thanks!
@@mike_van_in you're welcome. Thanks
good works
@@TechToTinker i have question how i can sen sms from sim 800 using arduino??
Can I use SIM 800L as the module in a way that can send SMS of the GPS location once the button (SOS) is pressed? Do note that I have used Neo 6M module for GPS tracking... So is it possible to automatically send an SMS alert??
Yes. You just need to provide external power supply for the gps and gsm modules.
@@TechToTinker Thanks for the reply!!! Can you please share any tutorial link, if possible, for better understanding... That would be really helpful for my smart stick project
Goodmorning sir I just want to ask if what data plan does the simcard need? Regular load or data plan? Badly need for my thesis sir
hi, pls explain to me about the sim card. Do i have to buy a brand new sim card and just use, how will it connect and send a message to my phone?
You may use your current sim card. Just insert it, upload the given source code, and test it.
Hi .
Awsome video !
Is there anyway to mod this to respond to a call rather than a text ... I don't need it to answer ! I need to operate a relay or bell on ring and stop when the ring ends .....
Our sip phones used to use a function "ring anywhere' that rang an analog line with a factory bell attached .. But the pstn line has been removed .. I could use ring anywhere to ring one of these modules and relay a bell to ring ... But I don't know how to write the code to respond to rings, or even if its possible .
Thank you
Paul
Sir George, you have the gift and passion for teaching.
Hi Ed, thank you very much. :)
My Arduino does not power on when I put the SIM800L to 5V and when I switch to 3.3V, my SIM800L does not work.
If I use powerbank and an IN-4001 diode to regulate 5V, will it work? Is it a good long term or will I be forced to use another power source?
I have another idea. I'm also planning to use a Romoss Ares 10 Mini powerbank with 2 USB output with 5V 2.1A to power Arduino and connect other wire to SIM800L in breadboard. Do you think it can work?
SIM800L is power hungry device so it should be power with a separate external power supply with ATLEAST 2A current capability.
With regards in using powerbank, I cannot give you answer with that because I haven't tried it perhaps you could try it on your own.
I would suggest to use an external power supply 1 for Arduino and another 1 for the gsm module.
@@TechToTinker Brother, please answer me, I need you, because my project is ready, and secondly, the problem of the cat is only that I have a problem. No sim800L piece and 3.7 voltage saver, but what chip do you need G2 or 3G? Thank you
Hello, were you using a 4G Globe sim with this gsm module? Need confirmation for a project.
Hi sir. May I know the the voltage and ampere of the external power supply u used? Thank you
@Ange Nica, if I still remember it correctly, the external power supply is 12V/2A which is connected to Arduino Uno power jack.
To better power the SIM800L, it is recommended to use 3.4V to 4.4 V / 2A power supply.
@@TechToTinker Noted! Thank you sir :)
Im assuming the sim card is already activated? Or does the sim800 already connects it to satellites?
Sir can you do video about how do we do solder the pins to sim800l... thank you
Great video but I have question. My SIM card instructions are telling me that I must enter the APN but I don't see a place to do that. How do I enter my APN?
Is it possible to connect pin 6(ring) directly to the arduino digital pins to detect high/low... When a call is received ... Would this work ? Or is the output incompatible ?.
Thank you
Paul
Hi, great video! Does the module turns on automatically when you apply power? In the datasheet is states that the module has a power key pin that must be held low for at least 1 second for power on/off. Thanks!
Hi @Dario Draiman, no the SIM800L GSM module does NOT have a power key.
Thank you so much sir. I was astonished to see its size. I was like "Man that is small." ❤️ From India. I wonder where are you from. Thank you again. 🔥
@Senkottuvelan, glad that you liked it. I am from Philippines. Cheers.
@@TechToTinker 👍🏻❤️
Hello when I try in AT+CREG? I get ATAATATATAT+ATAT+CATAT+CRATAT+CREATAT+CREGATAT+CREG?ATA Not sure what is is all about? I keep getting nonstop blinking I'm guessing it is not connected to my network.
hey bro if normal string like "hi " it can send a message but when a link is a sms message i couldn't receive it
Thanks for your tutorial, but i have a problem with my module, my module always blink every second, can't get the signal. Any solutions?
Hello Danang, how did you power the SIM800 module? Normally you should power it with external power supply of 3.4 to 4.4V with minimum current of 2A
@@TechToTinker 4.0 V, using LiPo Battery
@@danangkurniawan2376 tried adding an electrolytic capacitor between SIM800 VCC and GND.
another maybe sim connection. it should be inserted like this: www.google.com/search?q=sim800l+insert+sim+card&prmd=ivsn&sxsrf=ALeKk00QdB1-1KCj6DY9VTvmNoVFR1GjEA:1601878787794&source=lnms&tbm=isch&sa=X&ved=2ahUKEwjMmfrA55zsAhUDGKYKHaxRAlQQ_AUoAXoECBAQAQ&biw=393&bih=671&dpr=2.75#imgrc=w6guxI87dIEX1M
@@TechToTinker still not working
Hello sir, May I ask what is the problem why serial monitor only shows initializing?
Sir good day! Can i ask that sim800l it connect to the ultrasonic sensor?
Hello John, SIM8000L cannot be connected directly to Ultrasonic sensor, you will need a microcontroller in between such as Arduino microcontrollers.
What type of SIM card Cell service is required, what do you have to purchase?
It uses 2G technology but modern sim cards as far as I know should be backward compatible. Meaning to say, 3G, 4G, 5G should still works with this GSM module.
But, if your country no longer support 2G then this module is useless for you. You may search for newer models which supports LTE/4G but it is more expensive.
This video, and many other tutorial videos, show the RxD pin connected
directly to the Tx pin of a 5V Arduino ? The RxD pin on the SIM800L has
a MAXIMUM voltage level of 2.8V. It needs a potential divider network
to reduce the 5V signal from the Arduino to the 2.8V input on the
SIM800L module. I have no doubt it works without, but it is stressing
the SIM800L beyond acceptable limits, and I wonder how long it will
last.
I have a problem, I used the gsm 800l on 5v by mistake for like a minute, without realizing that it should be on 3.4 V now the red light switched on the movement I switched it on, and the red light turned on then it did not, in that 1 min it heated a little that's it, now is my sensor damaged?
cause I am scared now
Hi sir im doing a project of vehicle tracking system will this gsm work with 4g sim plz reply. Should I buy 800L or 900 gsm module?
@unknown xyz, both sim800l and sim900 works with 4G sim. Just make sure your country still supports 2G technology.
@@TechToTinker Jio sim will work? its uses 4g network
I don't think if I can answer you with that. Just go to google and search if your country still supports 2G. If not, then you cannot use SIM800 nor sim900.
@@TechToTinker which module can i use for 4g or do i have to buy 2g sim seperately
@@unknownxyz7425 you seemed not reading my reply. I don't know if I could help you then.
Can i connect audio jack to the module for earphones to make calls..?... If i can means plz help me to make this.. Bro.. Plz plz pzl
Hi, how to attach a vibration sensor with this circuit? If a vibration is detect from vibration sensor, send a msg to mobile phone. Pls help...
Hi josemon, you may replace the tactile button switch with your vibration sensor. Then modify the code according to how the vibration works.
Hello sir, kindly can u clarify my doubt
I am using sim800l for my project I am very confused, whether should i use any dc-dc buck converter or I am having a 12V adapter can i use that
use a buck converter, reduce the volts to a range of 3.4 to 4V
Thank you for your short and helpful example.
You are welcome @wittbike.
That's a great Videa TechToTinker, but your description of the pin assignments doesn't seem to match the label on the back of the SIM800L. Pin 3 (from the top) is labelled as RST, whereas you described it as RXD, then you only describe five pins, when there are actually six (NET, VCC, RST, RXD,TXD and GND according to the label). I have ordered an SIM800L, but it hasn't arrived yet, so I can't verify whether your description or the labels are correct, but it might be an idea for you to confirm please :-) Do we need to do anything with the RST pin, such as tie it high or low perhap, or will the the SIM800L work OK without it connected, as appears to be the case?
Hi @Michael Benn, NET is not actually a pin where pin headers will be connected. NET is where you connect the external helical antenna. That's the reason, I begin pin assignment from VCC as pin 1.
You can leave the RST pin without connection to microcontroller. its sole purpose is for resetting the SIM800L.I believe, it has a pullup resistor in the module. You have the option to tied it to microcontroller's RESET pin or you can control it manually.
Thank you and cheers.
Hi po! paano po kung walang response ang led kahit may power na sinupply ibig sabihin ba sira na ang module?, ang gamit ko po ay 3.7v lipo battery with 2 amp.
Maraming possible cause. Baka defective ang module. Baka walang connection papuntang VCC at GND from the battery. Baka mababa ang voltage ng battery or low batt.
"Very small and very cute"
Banana for scale
Hii, ask ko lang po sir kung ano problema non akin. Yun lumalabas lang sa serial monitor is "INITIALIZING", wala akong "OK" na natatanggap mula sa SIM800l po.
Ano po sa tingin nyo yun mali? Kasi yun SIM800l po is nag biblink naman po siya every 3 seconds, and I think nababasa nya po yun sim ko naman.
Hello sir, do you have any coding or tutorial that can make that GSM reply back via phone after receiving from the phone sms without using a laptop?
Hello, have you tried connecting this in arduino along with PIR sensor (HC-SR501)? Did you experience any false positive from the PIR Sensor?
Maybe this model emmits infrared 😅
hello po sir. I am a student planning to use arduino with sim800L with a fire sensor alarm and buzzer. This will be one of the features of our research project in our state university. Is there any chance that you could provide a tutorial for this fire alert system sir? Thank you so much
If we connect to laptop do we need to connect external supply also?
How a user can select preferred sim card credentials.,, if a user insert different sim card then we have to manually type the codes inside arduino.but how to give user to select sim type dynamically.
Hi, do you have any voltage divider diagram for 4.2 volts that may provide
I looking for a source to connect this 800L to an avr and im i also want to connect it to a server..looking forwarding for examples and ideas
Hi @kalana weerakoon, I am currently don't have enough experience with AVR but it should be easy after you are able to understand UART serial. After that you can control the SIM800 by sending AT commands.
@@TechToTinker okay thanks
Hi sir can I pair sim800l with Arduino nano to make automatic call and message when pressing a button
Sir! how about if I use water sensors. When the sensor works the gsm module should send a text to the default number that the sensor sensed water.
@Labrada, Sweet Raven. Yes that's very easy to implement. Instead of checking the button switch state, check for the sensor.
@@TechToTinker does it mean I can use the same code?
@@sweetravencurranlabrada4115 Yes and no. Yes because you don't need to modify much of the code. No because you will still need to modify a little.
Refer to my first reply on how you will do it?
@@TechToTinker THANKYOU SIR! Really much of a help
@@sweetravencurranlabrada4115 Im glad to help. Cheers.
Hello po sir, ask ko lang po if ano po difference nila sa sim900a? For thesis purposes lang po thanks po.
Hi sir Instead of gsm900a can i use gsm800l for prepaid energy meter project
I am not sure but I think Sim900 and SIM800 has compatible AT commands.
@@TechToTinker thank you so much for your valuable reply sir
@@teluguyoutuberkarthik_elec9020 my pleasure brother. Cheers
On the left side has 6 pins including an antenna pin. Please check.
Yes that is correct @Al Imran Suvro.
Thank you friend, this is the best channel of the World!! from: Brazil
I'm glad that you liked it. Thank you
the gsm i bought has a wired antenna (to be plugged on top left of module). do i still need to solder the hellical antenna if i am using the wired antenna?
No you don't have to
hello how bout using sensor pag may ma dedetect ang sensor may tatawag sa phone po.
pano po yun?
Hello Ian, seems like I am far late already to reply back to you. Yes it is very possible. If you need my help, drop me an email to tech.to.tinker@gmail.com
Cheers.
Good day! does it need to have a balance to send messages?
@Hibiki Kuze, gsm module works exactly the same as your mobile phone. Does your mobile phone can send sms without load balance?
Very good your videos, comments and tips. Thanks and have a great success in your professional live!!!
Thank you very much @Yaco Kirzner and you're welcome.
is it still working if im just use 5 volt to give power supply to gsm without use diod or resistor
Is there any AT command for sending SMS to the SIM address book?
i buy sim800l sms not sending . recived sms and call good word . on 19200 bund rate . what is the problem of sending sms . code in the pass i use sms send code working but this time not work.
Thank your, your video helped and it was very easy to follow.
@Errol Sternberg, glad that it helped. Thank you.
Pls, what software can I use for the programming
great vid sir. by the way sir what mobile no. should I put in the code? the mobile phone no. or the GSM module sim no.?
It's the mobile number you want to be notified.
It is very useful video and u told clear concept
But i am not getting sms to my number can u please help me out
hi sir hindi rin po ba nasira ang gsm nyo sa 5 volts nyo po kahit walang diode or resistor?
so far, ok pa yung sim800l ko pero hindi ko naman kasi ginagamit palagi.
Recommended to observe the following option:
1. 3.4 to 4.4 V sa VCC external power supply.
2. 2.8V voltage level on rx pin using voltage divider circuit resistor or better use voltage level converter module.
or use a sim800l powerboard.
or better used sim800l v2 board because it takes care voltage level and power.
@@TechToTinker thanks man earned my subscription and respect hahahaha
@@gitgud42 your most welcome bro. Thanks.
Which diode did you use sir? Will IN-4001 work on SIM800L?
I soldered the pins the other way around lol :D
Also is it possible to attach a li po battery to power up the sim800l but transfer data to arduino?
@Armin Cal, 2 or 3 pcs of 18650 connected in parallel is a good setup.
Btw, I don't see a tradeoff using that config and you also have the printout of pins. Good luck and cheers
hi sir... may softcopy ka ba nyan..?
@Darwin Vargas, yes check the links in the video description. Cheers.
We can use any company sim in gsm module and other side phone have any company sim
It's working or not?
Like we use gsm module vodaphone sim and in our phone in jio sim
So it is working or not?
@Dhruv Patel, yes it will as long as your country still supports 2G.
@@TechToTinker bcz my module work only if vodaphone to Vodaphone
But when I chnage vodaphone to any other company sim ,it's not working
So provide solutions
Very nice, thank you I have joined your channel to see more as this would be good to make a security device, no Wi-Fi
I have observed many posts on the internet that state GSM module can also be used to get GPS coordinates....is this true? Thanks 👍
Hi Ramesh, SIM800L does not have GPS capability. What others do is use the GPS coordinate of the cell site where SIM800L is registered, but that's not accurate. Better to purchase additional gps module.
Congrats Tsong. Galing mo tlga Sir!
Thank you Tsong :)
What library po yung ginagamit nyu po ditu? Hehe
i also prefer it , nice talaga ito sir dahil may built in RTC sya at makaset ka rin ng alarm ,meron din itong file system, makakastore ka ng text, pwedi panga itong connekan ng sd card at makaplay ka ng mp3 pero mahirap lnag need pa baguhin ang board.
Oic, hindi ko pa siya masyado na explore. Nagreresearch ako kung paano yung FM kung meron man hehehe
@@TechToTinker meron pero, ang antenna nya ay mahirap iconnect , need na nga bagong pcb lgyan ng trace galing sa antenna pad nya.
@@pinoyenginerd1091 ah sige explore ka na lang, salamat Sir
Hi, great video. I am using SIM800l with ESP32. How can I use to send sms?
does it sim800l works in 2G only?? or can it work on 4G?
Gagana po ba to kahit anong klasing type ng Arduino gamitin?
If we use esp32 having WiFi module then why we are using sim800l can we use both?
Tell me difference
I think I'm late but, ESP32 has wifi connectivity but you cannot send message solely using wifi, GSM module helps in sending message and stuff. Though If you wish to route your message using wifi, it won't be needed
Hello Sir,Can you make the code for vibration Sensor,sim800l,buzzer and Arduino nano,to sending message.
Hi.with tanks but i waz listened sim800l just need 3.8 V and dont work with 5 V .how did you do that with 5 V ?
Hi @arman riyahi, yes you understood it right SIM800L should be powered 3.4 to 4.4V
Could you tell me how to buy a phone number recorded in the SIM phonebook with the AT + CPBF command, or one that will give you a result, please
@Osmer Romero, check it in page 82 of this pdf:
www.google.com/url?sa=t&source=web&rct=j&url=www.elecrow.com/wiki/images/2/20/SIM800_Series_AT_Command_Manual_V1.09.pdf&ved=2ahUKEwichbPY2qLuAhWSH3AKHcY2BBkQFjAAegQIAhAB&usg=AOvVaw3Ylp8mdy26_qTxuILL55y3
Cheers.
@@TechToTinker If I have seen the AT + CPBF commands, what I need is to compare the entry number with the agenda number, but I cannot connect a conditional (IF) with AT command, could you help me please
can you make another video using sim800l and TTGO LORA32
Anong sim card po compatible sa SIM800L?
Any sim. Most of SIMs are backward compatible so dapat magwork siya pa rin sa 2G. May nagsasabing ang mga 5G sims daw ay di na gumagana so better na bumili ka ng mga 4G/LTE sims lang.
bcz my module work only if vodaphone to Vodaphone
But when I chnage vodaphone to any other company sim ,it's not working
So provide solutions
@Dhruv Patel, then why not use a Vodaphone sim on it? Any sim should work as long as your country supports 2G.
I also chnage vodaphone to BSNL
@Dhruv Patel, I live in Philippines so I do not know what network companies you are talking about. In anyways, what you can do is verify first if your country still has 2G supports (its a little old technology and we are now moving to 5G now).
@@TechToTinker thank you for your support .
I am from India
@@pateldhruv4657 its nice to know you. Cheers
Why did in sending the output("Hi TechToThinker") says ERROR. is signal the cause of it ?
Did you solve it?
Pa notice po. Kaya po ba iprogram ng dalwa yung magiging recipient nya?
Hi @Niel james Sapin, yes just create another variable for default_num lets say default_num2.
I wish to use the protocol MQTT, is it possible ?
Sir,,,, can i make gps traker using only gsm 800l
Hi @Joe Rivera, SIM800L is a GSM/GPRS module meaning it doesn't have a GPS capability. However, it is possible to use the cell position and triangulate your approximate location. It could be difficult and not accurate.
Better to use additional gps module. Hope this helps. cheers.
@@TechToTinker ok thanks
@Joe Rivera, You're welcome. Thank you for visiting. :)
Hi, I actually wanted to ask that I'm using sim800l with Arduino uno to send SMS and make call simultaneously one after another but the problem is that after connecting to network call function is working really fine but SMS are not sent somehow,.... I've tried tons of code but SMS are not being sent please help if anyone can ! I would be really thankful
Can you make a tutorial on how to send messages using SIM800L in ESP32 Micropython🥺🥺
How to implement the same with esp32 instead of arduino?
Hi @Gaurav Chauhan, I am currently creating the drafts of the tutorial. I will post in around 2 weeks time. To answer your question, just learn the UART and apply the same AT commands.
Hope you checkout again. Cheers
Hi @Gaurav Chauhan, I just uploaded the implementation using MicroPython. Please check it out:
ruclips.net/video/uKGD9oKQJSs/видео.html
Can a Sim800L create a hotspot network ? Using simcard internet?
No. SIM800L can only provide internet in 2G. Also SIM800L has no wifi capability to provide hotspot network.
George Sir, I am making a laser security system in which if a suspicious body is detected it calls the owner of the property, everything is like you said in the video ,I have all the parts ,can you help making me the code for it and how to connect all the wires.
THANKS SIR
I HOPE THIS COMMENT SEES YOU IN GOOD HEALTH
Sir we can use airtel sim in gsm module 800l
I can't answer you with regards to that. I live in the Philippines. Anyways, you may try it on your own.
May possible way po ba gamitin ang 4G sim LTE sir, kung meron paano po? wala na po kasi ako nakita nag bebenta ng 2G sim card
Hi niru, usually any technology advancement ay backward compatible in order to support previous hardware. So what I mean is your 4G sim card should be backward compatible to 2G.
can i use it like a tracker gps , i mean that it can send a location to the phone with sms message
@Yassine Charrour, SIM800L is a GSM module only it can make or receive call and receive or send SMS.
However, you can attach a gps module to your MCU and send the GPS coordinates with the GSM module.
Another option could be is to use the 3G internet capability of SIM800L and use the network tower location as reference for the coordinates. This option is not accurate. I have not tried it also, so I do not know how to make it.
I hope this helps you. Cheers.
Good day sir...
I'm new to the gsm 800l...
Have a quick question...
Will connecting the gsm 800l module to a 5V supply for less than 1 minute permanently damage it?
Also if it will not damage it, is it ok to use 5V to do a quick test of the module...
Thanks, and great video. (timeless)
Hello Sir, Good Morning. I'm Ian Hesim a 4rth year BSCS Student. Paano kita ma contact Sir? Kailangan ko ito sa thesis project ko at sana mapansin mo ito kasi marami akong itatanong. Pleaseee!
hi sir i have an issue it is connected to the sim by the led but when i upload your code it still on initlzation what should i do
Hi @Ardu Robo, do you get any serial dumps in your serial monitor?
@@TechToTinker no in serial monitor still just initilzation nothing else appear what should i do
You may watch again this video to make it more clear and easy to understand. Basically, you need to send AT commands to SIM800L to let it do something like sending sms or making voice call. The source code is good for testing sim800 if its functional.
You might like to watch this instead for more detailed explanation: ruclips.net/video/HBjiFmKs5cE/видео.html
Cheers.
Try sending AT in your serial monitor. You may refer to this manual for more details: www.elecrow.com/wiki/images/2/20/SIM800_Series_AT_Command_Manual_V1.09.pdf
Can we use a calling using this module or text only
Hello @moksa shop,
It can be use for both call and SMS, here is a demo of it:
ruclips.net/video/xMsBFC10s1k/видео.html
DTMF function for controlling:
ruclips.net/video/QueiLXLFVtM/видео.html
Tutorial for using it for controlling:
ruclips.net/video/HBjiFmKs5cE/видео.html
hi sir is it ok to power it with 5v from arduino or it will 🔥 what should i do to power it with 4.2V
Hi @Ardu Robo, SIM800L is a bit tricky to use because of its power requirements.
It is not advisable to use Arduino Uno board to power external circuits, what I would suggest is to use external power supply with atleast 2A capacity.
You may try to use voltage converters to step down voltages to a voltage range acceptable for sim800l which is 3.4V to 4.4V.
Cheers,
George Bantique
#TechToTinker
@@TechToTinker thanks dear
@@TechToTinker is there another way the blue lithium battary is 3.7v it can make gsm on or not
@@TechToTinker and for the code i need to connect pir with it which means i need sens message when pir have amovment
@Ardu Robo, do you mean 18650 battery?
If yes, a single 18650 might not enough
2pcs or more 18650 connected in parallel might work. Just make sure to connect it in parallel connection (not series connection).
The reason of parallel connection is to provide enough current.
Sir,there is a 3.5 volt in ardruino uno. Can we use it
No, and Arduino has 5V and 3.3V only not 3.5V.
You should use external power supply that can provide 3.4 to 4.4V with a minimum current capacity of 2A. Less than that, your project will not work.
Can we use tracfone?
Thanks, but the is no link to the code in the description nore in the comments. Please correct
Hi Nicolo, thank you for visiting. Here is the link: techtotinker.blogspot.com/2020/07/tutorial-how-to-use-sim800l-gsm-module.html
Will it accept 4g sims capable of 2g?
@Jijesh koroth poyil, yes you can use a 4G. Cheers.
@@TechToTinker thank youuu, I've been looking for this answer for a while😍😍🥰🥰
how to open sim toolkit in sim800L
Hi, I also don't know.
Make it simple. If you want to do is to check the sim balance credit, I think you can achieve it through sms. Send balance inquiry first through sms then wait for the reply.