Send/Receive SMS using SIM800L + Arduino (Request sensor values) | DigitSpace.com

[@SurtrTech]

Hi, all the required links can be found below the video: Previous tutorials about the modules used, schematics, libraries and codes. The codes provided contain a lot of comments not like the ones shown on the video... Wire your modules and you're ready to go.

[@HecMundo]

¡Este es un súper video! Compré un aplauso de MXN 20.00 👏

[@lithiumbatteryapplication18650]

Think you so much Yassine for this big efforts, keep going bro, all support to you.

[@rakshitabaadkar8355]

can u please mention what power supply you are using?

[@electricalcoder3025]

hey are you facing the issue like sending long sentences to gsm but reciving in accurately the words when short messages sent it recieves accurately...is the problem gsm module or is it common?

[@rakshitabaadkar8355]

Hello!! Great video.🙌 I'm using the same module (sim800l v2) Can u pls tell me what you used to provide power supply? How much current and voltage rating should I provide for it to function properly?

[@kotokotify]

that will help me a lot in my project, Thanks a lot !

[@fazecan2469]

SurtrTech I have designed a self driving arduino car with an obstacle avoidance system and line tracking. My car can also be controlled through bluetooth or with an IR remote. Do you have any ideas on a science fair project I could do with my car?

[@tigullio1]

Thanks, that's what I was interested in, I'll try to build it.

[@alexc7095]

hey man great video. can you make a video about simply just sending and receiving sms ?

[@SurtrTech]

I don't know what you mean...

[@khaben6986]

@@SurtrTechI think he means without sensors only the Sim800l and a phone exchanging SMSs !

[@SurtrTech]

Well you can send whatever you want just replace the data string... the sensor is just an example.

[@chandrafajar2291]

Hello. Can i use other sensor (ina219)? I want to build dc measurment and request sensor data via sms like your video. Thanks

[@SurtrTech]

It's possible to use most of the sensors, just do the correct modifications (data string, units, calibrations...).

[@thomasklein8174]

Do you know how many messages per minute is it possible to be sent using this solution?

[@SurtrTech]

I don't know exactly, but as I tested, the moment the whole sequence stops you can start another one again... it always needs to put the module on receiving SMS mode before you can ask for another value.

[@widiyantonugroho9012]

Hello sir, first i’d like to thanks for the knowledge you’ve shared throughout your website and youtube. I created an over-voltage alarm program that read voltage with refresh rate every 3 seconds. where if the voltage exceeds the set point 420 VAC it will automatically send a SMS. but the problem occurs because the SMS keeps repeating every 3 seconds, so how can i do to make the SMS only sent once at the beginning. despite over voltage condition least for minutes / hour after it.? Thank you sir. I hope you can help me

[@bendi9846]

Hi i have problem i connect arduino to the power ( NOT USB ) and i need to restart my arduino before code work

[@khaben6986]

Thanks sir !

[@iantcroft]

If you are connected to the Arduino hardware port why use softwareSerial?

[@SurtrTech]

I'm not using (0,1) pins.

[@iantcroft]

I thought you meant physical pins not digital pins. Apologies.

[@boitshepogoitseoneleaketsa1956]

I am getting an error for both the AT+CMGF=1 and AT+CNMI=2,2,0,0,0 commands. What could be the problem?

[@SurtrTech]

Did you first try with only AT and received OK! ?

[@SurtrTech]

@@Name-ub1kz You can try "AT+CNMI=?" to check the available options, make sure you check the manual for other commands and troubleshooting www.elecrow.com/wiki/images/2/20/SIM800_Series_AT_Command_Manual_V1.09.pdf

[@tigullio1]

Sorry but where can I find this code?

[@SurtrTech]

Hello all wirings, codes and libraries are in the link below the video which is: surtrtech.com/2020/01/19/send-receive-sms-using-sim800l-with-arduino-dht11-mlx90614-digitspace-com/

[@tailordhaval]

Hello Sir. I have checked and it works perfectly. I have modified it as per my requirement. But there is one issue I have found .. Once I switch off the device and start once again the device is not working until I press the reset button of Arduino. Once I press the reset button after that it starts to work. It means every time when we start the device( give the power supply through adapter), first we have to press the reset button of Arduino. " I have checked after sim800 connect to network".

[@tailordhaval]

Hello Sir, I got the solution. The issue is created because Arduino is an initialised sim800 module before the module is connected to network. So what I do, first I have monitor the time for GSM to be stable means it connected to the network. In my case GSM takes max. 16 s, So I just write a delay function of 17s in the void setup function very first. During this time period, GSM connects to the network, and then our circuit work properly.

[@vivekchauhan7468]

hello i have one problem with som800l module. i cant recive any sms in android from sim800l. but i can receive sms in old keypad mobile. do you have any solution. if have please help...

[@SurtrTech]

Hello, make sure your Android phone doesn't block the unknown numbers or don't you have an app that considers the SMS as a spam... if the module can send SMS to other devices it works well.

[@flinkiklug6666]

Ämm warum schreibst du „wie geht‘s?“ ? Warum ist das Video Englisch? Ich bin verwirrt 😅

[@amhale27]

Hello, may you be able to make a project of ECG? and display on the monitor screen, and if possible add more temperature sensors and tensimeter sensors... thanks...I need a reference brother🙏