Really interesting video - thanks. I love the way you have used a Finite State Machine(FSM) to move to the various states - makes the code much easier to understand.

Your gsm series is very helpful, thanks.

This is only example working for this case! Congratulation and many thanks!

Good stuff! Ordered the parts and a card so I'm bookmarking this. To begin with, going to set up intrusion alarms for my 2 workshops. Unreal what security companies charge for that.

Thanks iforce2d very much

Hi, im not sure if this has been posted before, but one thing i have found during my testing (as a stand alone battery powered project) is, if you disconnect the power to sim module and arduino and connect up to battery the sim module will not send the sms when the state changes. This is because arduino enters "GPRS.println("AT+CMGF=1");" in the VOID SETUP function. I found if arduino enters this command in the "VOID sendSMS" function in "VOID LOOP" (as in the video) it works perfectly if you disconnect then re-connect the power supply to both modules.

Very Helpful Video. Thanks For Sharing 👍

Thank you for this tutorial. I have changed it a bit to implement POST instead of GET and added power down and power up to the loop to save battery. FYI, using WEMOS D1 mini Pros and the red SIM800L modules. I found the blue SIM800L EVB modules never got enough current no matter how I tried!

purtroppo non capisco l'inglese ma i suoi video sono mooooltoo interessanti!!! e divertenti

This is good projects for me.

Thanks! mamen, you f*cking rock! Cheers mate :D

hi I have a question about how to send data to a server, do you know how to do post request or for example as you said, how to send the location in real time from the gps module to a server? thank you.

life saver! thanks..

Hi @iforce2d this state machine (and gsm one!) is great and I use it a lot. Is there any way of checking the final response code (OK, ERROR etc) before moving to the next state or to confirm the message was actually sent? Would really like to try to error check. I understand you read bytes in until the new line character then parse the line and then do stuff but how would you incorporate checking for the OK final response? Hope you can help 🙏👍

AMAZING, thanks a lot :)

Thanks a lot.

buen video like XD :v

Hi, Nice video! But what about MQTT? In your opinion, is it possible to use together mqtt and gps? Both on same or different softwareserial? Thank you

may you please post the code again.. I cannot open the link

thanks very much, limit buffersize in serial (arduino uno) and asynchronous give me headache (can only read around 15 characters). Your smart code can handle big txt/html (i had tried 6kB) without issues.

Hi , Really your video is the best one explained this subject , I tried to make some project based on your tutorial , In my project I didn't use the built in serial connection , I used instead pins 10 , 11 for controlling my device & pins 2,3 for connecting to GSM , I have noticed that the arduino does not work when I remove the usb connection !! , I'm using another power source for arduino , So there is no need for the usb , do you have any explanation for this ?

i see this video is 2years old. did you make your gps tracker? i nead to build one for a project my brother is working on. im a bit of a novice with code. need some help

hello, thanks for your videos, really usefull to get in touch with this devices, just a question, have you tested this sim devices with other NZ carrier companies =? I ve tested with Vodafone and works,but with spark doesnt connect to the network, actually I ve tested with sim5320E, and it works with 2degrees but Spark nop!. thanks again to share your knowledge. greetings from Auckland.

Thanks

Hello , very nice video. I want to send voltage value using your code but having trouble where to put the voltage equation to send the value to website? Your cooperation is appreciated. Thanks

Hello from Chile!, Your video helped me a lot! Now I'm now try to work with external power source (more powerful than USB I guess, 1 Amp) but it doesn't work until I press reset button in the Arduino module, then it can work for hours perfectly...Can you help me with this issue?

Thank you for the tutorial. I have a question, connection tpc from client to server is aprox 4 seconds, how i can do it faster? Thank you por reply.

Sir , when i m typing AT or any command in serial monitor it is not showing anything

Thanks bro for this helpful video.. bro i want to store the content in a variable .. how i can do this ?

I believe it is 2g internet connection which will be phased out soon . Does an umts or lte sim module exist to connect with arduino

Can the Sim900 work with 3/4G sim card?

Even when I send AT commands 1 by 1 to the serial monitor, It doesn't show anything As your first sketch in the video sir. Also, I tried changing Arduino. and gsm module too. all the connections and power is okay. checked a thousand times. Please help

Hi! Sorry for off topic question. Where do buy electronic components in Japan, if you do so? Parts like small quantities of Japan made solid capacitors. Cheers

Hi Awesome video Thank you for sharing that tutorial....i need a help how do i send sensor data on webserver using GSM sim900.

Thanks for the nice and informative video.I am a newbie and I am using an Arduino Uno and SIM900 GSM/GPRS shield. I have been able to use the codes in this tutorial in a little project I am working on and it works for a secure site with SSL. I will like to make a call with the response I get from the web site. This is the response I am getting Ignoring echo: AT+SAPBR=3,1,"Contype","GPRS" Ignoring echo: AT+SAPBR=3,1,"APN","APN" Ignoring echo: AT+SAPBR=3,1,"USER","FLAT" Ignoring echo: AT+SAPBR=3,1,"PWD","FLAT" Ignoring echo: AT+SAPBR=1,1 Ignoring echo: AT+SAPBR=2,1 Ignoring echo: AT+HTTPINIT Ignoring echo: AT+HTTPSSL=1 Ignoring echo: AT+CGATT? Ignoring echo: AT+HTTPPARA="CID",1 Ignoring echo: Received HTTPACTION HTTPACTION type is 0, HTTPACTION result is 200, HTTPACTION length is 12 Ignoring echo: AT+HTTPREAD=0,12 Received HTTPREAD HTTPREAD length is 12 HTTPREAD content: 23470XXXXXXX Please I will like to make a call with this returned value which I got from MySQL database using a SELECT statement. the phone number is the only data returned. Any help will be highly appreciated.. Thanks.

How to send data to a server?? As you explained to use httppara command in loop with long and latt values. Don't we need to set httpaction to post??

nice video. Everything works perfectly fine in the arduino uno but when I switch to my external power supply or connect it to my pc without the serial monitor open it doesn't work anymore. the program is already loaded but still it doesn't work. please reply me if anybody knows.

The connection of sim900 and sim900A is same or not ?

This is great work! I work for a company that is looking to get a few projects build with Arduino. Can we hire you to build these projects for us? If so, could you please send me an email or phone we can contact you at? Thanks.

hello sir what sim800 module how it work

Hello, can you please help me with the code to store the HTTP GET data in a string for further processing.

Hi, i m applying and always getting +httpaction: 0,200,0 … any idea???(thank you)

thank you vary much ......

these commands will work on sim800c I have a big problem with my module

in my case api format is json and i want only some portion of that content how to achieve that ?

Hello, thanks for your tutorials, they are really helpful. I am working on the sim800l with GPRS and when I want to switch to the gprs mode it says : operation not allowedn (when I writing the AT+SAPBR command) ...

can someone help me to make the parameter in the url is filled from variable ? plz i need help

Yeah you smack that mosquito

hello ! my project is soldier health monitoring system , i need the code related to interfacing both gsm and gps with arduino .. can u help me out ?

I have sim800 I use GPRS I use http GET command I call a phpfile that uploads voltage in MySql database when the comand is executed I get no response like "+HTTPACTION:0,200,15" or anything like +HTTPACTION: But after continious tries i got it once but every time the command is executed the voltage is saved but the problem is i don't get to use HTTPREAD comand The same was working fine in sim900A

can the signal power be generated? I want to analysis that value(signal power) Tq.

So how can we process the incoming data? For example, I want to turn on the led with the incoming data, but I could not do it.

I am trying to access web server my sql database to check whether some value (send by arduino ) exists or not in the database. I am Using SIM900A Gsm module to do that. Your code and lesson is awesome and I used it it's working fine. but not always. some times it stuck in middle of the operation. when i use gsmHTTPGet_looped.ino it is not working as a loop it's getting stuck. Is that a GPRS signal problem or hardware problem? I used 2 GSM modules for do that but it gives same output. Please help me

my guy said SIMP 900

I'm getting a 603 "DNS error", can someone help to fix this?

I AM GEETING 603 ERROR IT IS DNS SERVER ERROR WHAT TO DO

Sir please help me. i want to develop RFID attendance system. now to i want to send http request to the server using GSM. and when student enter in the school they w,ll scan sard to RFID and using GSM module i want to send that RFID to the server ????

im getting httpaction 0,603,0 so what could be the problem?

Hi, nice tutorial, its made some this topic nice and clear. But I have some questions. Firstly, you've said how you plan to build your long/lat into the URL, but are you still going to keep it as a "GET" (HTTPACTION=0), surely you should be doing this a post ? I've used the echo program to do GET commands successfully, but I havent got POST to work. Following your example i've done the following commands...(after the SAPBR stuff). AT+HTTPINIT AT+HTTPPARA="CID",1 AT+HTTPPARA="PROIP","212.183.137.12" (vodafone uk have a proxy to be used) AT+HTTPPARA="PROPORT","8799" ( ditto } AT+HTTPPARA="URL","mywebsite.co.uk/api/obs" AT+HTTPACTION=1 (my post command) AT+HTTPDATA=83, 10000 (telling it i'm sending 83 characters) up to here everything goes fine. I get the "DOWNLOAD" prompt and send... {"SensorName": "TestSensor", "ObsValue": 31, "ObsDateTime": "2017-10-01T03:30:00"} (with two carriage returns). I then get an "OK" response, but its obviously not ok, because I dont get an HTTPACTION response with a 201 that I would expect, and if I do a read (AT+HTTPREAD=0,94), i just get back the string I've put in and the data has not been added to the database. It occurs to me that I've not really given a statement to say - "Do it" just downloaded a string. Any thoughts on where I'm going wrong? and have you managed to get POST working. Obviously i'm working against ASP instead of PHP which probably makes some differences, but all thoughts welcome. Good work on the videos (though your link to the sketches didnt work for me - I was still able to find them - just not through the link)

0416, in the AM, or are you still running on Tokyo time?

Im working with the sim800l. Always get reply like: OK SIM READY CALL READY CPIN:OK How can I avoid that and just have an OK

Nice video, so how do we use it on real-time systems? I need to connect to real-time database on firebase with GSM.

Hi where can i buy one of those board

i have Arduino mega 2560 and sim808. i don't have any response, please help

does it also connect to the internet? thanks

My program is compile bt my GSM is not sending massege through arduino now what to do ? can you pls help me ?

Sir I have implemented all the AT commands & its works good for me I have used 000webhost api ....& make sure that in the URL somewhere it works with https & somewhere http

Hi Boss, How are you?

Please help me with this question, similar to your video sir. I put it on StackOverflow here is the link - stackoverflow.com/questions/61803348/program-is-executing-but-at-commands-not-showing-in-serial-monitor

Well structured flow and demonstration, Awesome...!!! I have few doubts regarding the output, following are the response which i have obtain , Ignoring echo: AT+SAPBR=3,1,"APN","airtelgprs.com" Ignoring echo: AT+SAPBR=1,1 Ignoring echo: AT+HTTPINIT Ignoring echo: AT+HTTPPARA="CID",1 Ignoring echo: Received HTTPACTION HTTPACTION type is 0, HTTPACTION result is 200, HTTPACTION length is 23 Ignoring echo: AT+HTTPREAD=0,23 Received HTTPREAD HTTPREAD length is 23 HTTPREAD content: [{"fc_st_price":"150"}] If you look into the output, which variable is printing the ans of HTTPREAD content: ? Can you please tell me the same?

Can you send HTTP POST request?

amigo me pasas el programa php test.php please

Hello, great videos, very informative.The Best.... Was wondering if anyone know how to use this and send dweets to dweet.io? I have a float variable that contains one of the gps coordinates and I need to get it out to dweet.io....Thank you :)

Your www.iforced2d.net links are down

Thanks ,may i have your email i need your assistance *****************urgently******************

Hi there, I really like your vids, they are great. I'm trying to interface with thingspeak. Using an atmega2560 and hardware serial and a serial pass through program (serial0 to 1) I can replicate your results, getting the time data from your web server. I don't trust SW serial. However, when I change the URL to "api.thingspeak.com/update?key=CV5EV6QS1FWAKDC2&field1=30&field2=20&field3=50” I get "ERROR" in the terminal and I just can't figure why. If I paste that URL into my browser it works. If I paste www.google.com into the URL it works. So there is something about that URL that it doesn't like. Do I need to escape any characters? Is it too long? It's driving me nuts. Thanks for looking!

Car tracker? Booooo. Autonomous quadcopter with GSM command please :)

Hi, Thanks for the video... I need a little help... How can I store HTTPREAD content In a string? Can you please assist?