I have been looking on the internet at how to use this gsm 900A sim model and most of it uses the buck power to power it up. so, when I watch this video, I am a bit confused about whether I had to use the buck power or just power it up straight from the Arduino. I am sorry for asking this question. I am a complete beginner at this matter
it will be better if you use the 2A min power supply. And this module can take 5V input, not like the SIM800L. So if you have 5V power supply II think you don't need the buck converter
Helo sir, i am not getting any message in my phone after pressing s character , but serial monitor shows message sent what is happening sir.Can you please help me to sort out this problem. Thank you ....
Hello, how are you?! Could you please help me assemble these items with a smoke sensor and a flame sensor? So when he detects smoke or flame, he calls the firefighters and the person’s personal cell phone.
Hello, i did the same connection of gsm power supply to the arduino but my gsm module's led is not on and not sending message. What seems to be the problem? My gsm is sim900a mini ver3.8.6 same as the video
it doesn't work on me. I can call the sim card in the gsm module and it also print "RING" in the serial monitor while I'm calling it, but when I'm trying to send a message, I didn't receive anything even the serial monitor says "OK"
Sir hello.. my sim900a module and arduino uno will work fine only after i plugged, unplugged and re-plugged the 5vdc source adapter. After doing so, the devices will function normally. Its just that it will not automatically do the job on the first powering. I need to turn it off again then on before it gets the signal. Can you recommend something on it sir? Thnk u so much..
@@miliohm permisi pak, apa solusinya kalau SIM900a tidak melakukan blink? dan tidak dapat mengirim SMS? tpi di serial monitor terbaca SMS berhasil terkirim?
@@muhammadgazaligali5581 coba simak video saya yang lain, judulnya SIM800L troubleshooting guide. Di situ ada cara cari masalahnya di mana. Meskipun beda tipe modul, tapi cara kerjanya sama.
You should update your code tutorial within the link. Misleading infos. #include SoftwareSerial SIM900A(10,11); // RX | TX // Connect the SIM900A TX to Arduino pin 2 RX. // Connect the SIM900A RX to Arduino pin 3 TX. it's Arduino pin 10 and 11 guys not 2 and 3
Hey sir! I tried your code, my sim900a is working but I still can't receive/send sms.I also edit the number and tried different baud rate 9600, 2400 and 1200. PLEASE HELP me on solve this problem. Need this for my project. THANKS
Hello, I am from South Africa. I have tried all network SIM cards in my country but the SIM900A doesn't get a signal. It blinks fast not after every 3 seconds. Please help!!
1. Can Arduino uno be used for commercial purpose or it is just made for school project work? 2. Is there cache memory problem in Arduino uno board after its continuous use ?
@@azrolazhan9804 usually it caused by low power. Try add more current by using external power supply not only from arduino. Seharusnya bisa, karena di Indonesia lancar, mungkin malaysia tidak berbeda jauh.
@@miliohm Thank you for the reply. I am assuming it is because the uno board cannot provide enough power. Do you have any suggestions for an external power supply? My SIM900a does not have a female dc adapter.
@@miliohm Hello again, so I now have an external adapter 5V 2A and the SIM900A blinks every 3 seconds now, but it still cannot send out messages to my phone. Why is this happening?
sir , serial monitor shows "SIM900A Ready Type s to send message or r to receive message Sending Message Set SMS Number Set SMS Content Finish Message has been sent ->SMS Selesai dikirim " but no message sent to my phone. can you please tell me the reason why message is not sending to my phone??
Video was very good but in some trackers we use GPS module which is costly, I think this one is based on mobile sim it will get coordinates from cell tower ?. Otherwise this one is good ...keep it up amazing work
@@miliohm yes, because I have try it, but the phone do not receive the message, so I wonder is it due to different software serial library And do it limit which type of simcard can be used only like u mobile or digi can be used or not?
Good day, sir, I did not receive any message, I followed all the step and everything seems alright. The only problem is the message cannot receive by phone. May I know what's wrong?
sir my sim900A not blinking after connecting to the arduino based on your tutorial.what is wrong? is that because the sim900A was broken or the arduino? how to test the sim900A whether tbroken or not? please help me sir, i really appreciate that.tq
Hi! How long did it take for the module to finish searching for networks? The blinking red in the corner is fast and the power status blinks also every few seconds. How do i fix this?
@@hafizhafizi351 it should be your wiring. make sure vcc,gnd,tx,rx are connected. Did the gnd connected? and rx sim to tx arduino. tx sim to rx arduino.
sir, i have follow all the Steps , but my LED from SIM900A blinkt too fast, that means the Signal is too weak, right ? But i change everywhere, still cant blinkt slowly. Someone can help me ? :(
Helo sir, i am not getting any message in my phone after pressing s character , but serial monitor shows message sent what is happening sir.Can you please help me to sort out this problem
if you use 5V power supply, simply connect 5V PSU to 5V arduino and GND to GND arduino. For SIM900A you need to decrease the voltage to around 4.2V. You can use stepdown module, or use some diode after output before connect to SIM900A.
@@miliohm Arduino Power jack requires 9V 500mA while GSM SIM900A requires 12V 2A. How to satisfy these requirement? Thanks for your reply. Can I use 9V 2A power adapter for both ?
miliohm hmm. I think my gsm module has different blinking pattern that's why i cant say if there is a signal or not. And also, the problem maybe is on the AT command. I followed the steps on the link which is to test the AT command and when I tested it, it wont send back "OK" when I send "AT" on the serial monitor
bro, di serial monitor udah seperti di video. tapi kok gaada sms masuk, itu kenapa ya? dan indikator led nya kaya gadapet sinyal. apakah kartu 4G sudah bisa support atau saya harus pakai yg 2G?
Ga masalah kartunya. Pake power arduino doang? Kadang ga kuat kalau arduino doang. Harus pake power tambahan dan diturunkan jadi maksimal 4,2V. Kalau dpt 5V juga kadang ga bisa.
tapi di video anda bisa ya bro pakai power dari arduino doang... jadi bingung saya. soalnya implementasi project saya ditaruh dijembatan yang tidak ada saklar nya, jadi gabisa pake adaptor tambahan. bisa bantu kah?
Test the connection by type “AT” and then enter. If the arduino reply “OK” means your connection is established and working. If still no answer from arduino then check your connection and wiring again. serial monitor arduino tidak reply OK selepas taip AT. what should i do? sebaliknya keluar macam ini: Arduino with SIM900A is ready SIM900A started at 9600 Setup Complete! SIM900A is Ready! ⸮⸮⸮⸮⸮@⸮⸮
THE SIM900A "DONT WORK" ITS OBSOLETE! the system it uses is no longer being used! its a dead carrier! no phone! "GSM" is dead! GO TO "what will replace gsm" ON GOGGLE at www.google.com/search?client=ubuntu&channel=fs&q=what+will+replce+gsm&ie=utf-8&oe=utf-8
When i call on the number inserted in GSM module, the bell rings. If I enter "s", then I cannot get the message sent. What might be the reason?
same problem here
some indian youtuber giving measleading code, this is not good, your code is working fine, thankyou!
Sir you are very nice and very good! Thank you so much for sharing your skills. New subscriber here from the Philippines!
Thank you so much!
I have been looking on the internet at how to use this gsm 900A sim model and most of it uses the buck power to power it up. so, when I watch this video, I am a bit confused about whether I had to use the buck power or just power it up straight from the Arduino. I am sorry for asking this question. I am a complete beginner at this matter
it will be better if you use the 2A min power supply. And this module can take 5V input, not like the SIM800L. So if you have 5V power supply II think you don't need the buck converter
Helo sir, i am not getting any message in my phone after pressing s character , but serial monitor shows message sent what is happening sir.Can you please help me to sort out this problem. Thank you ....
it is likely the wiring problem or the signal
So what we can do if the problem like that ?
Sim900A is not connecting to network. I am providing supply from Arduino. What could be the issue?
did you find any solution ? I am currently facing the same problem , if you did find any solution please share .
Hello, how are you?! Could you please help me assemble these items with a smoke sensor and a flame sensor? So when he detects smoke or flame, he calls the firefighters and the person’s personal cell phone.
what kind of sim didyou use? is it limited to 2g?
In my final year project me using gsm sim900a who to do coding like this sir can teach me ..?
Do you success bro? Because I also need it for my fyp project?
One question, how long does it take to get the signal?
Hello, i did the same connection of gsm power supply to the arduino but my gsm module's led is not on and not sending message. What seems to be the problem? My gsm is sim900a mini ver3.8.6 same as the video
Sim900 and sim800 use 2g gsm network. Most carriers shutdown use of 2g depending on where you live in 2017
what carrier do you recommend? anyone you know that will work?
it doesn't work on me. I can call the sim card in the gsm module and it also print "RING" in the serial monitor while I'm calling it, but when I'm trying to send a message, I didn't receive anything even the serial monitor says "OK"
Sir hello.. my sim900a module and arduino uno will work fine only after i plugged, unplugged and re-plugged the 5vdc source adapter. After doing so, the devices will function normally. Its just that it will not automatically do the job on the first powering. I need to turn it off again then on before it gets the signal. Can you recommend something on it sir? Thnk u so much..
How to use this particular module to make phone calls. No provision for mic and speaker
Hi sir, do you have the schematic circuit for this project?
You can open the link on the description
@@miliohm permisi pak, apa solusinya kalau SIM900a tidak melakukan blink? dan tidak dapat mengirim SMS?
tpi di serial monitor terbaca SMS berhasil terkirim?
@@muhammadgazaligali5581 coba simak video saya yang lain, judulnya SIM800L troubleshooting guide. Di situ ada cara cari masalahnya di mana. Meskipun beda tipe modul, tapi cara kerjanya sama.
Thank you for sharing your skills. New subscriber here from Venera Terra, Pluto!!
how to connect sim900a to raspberry pi 4. can you make a video tutorial, i really need it, plssss
hello sir I follow your tutorial but the blink is always faster and I try many sim cards but didn't effect .
the blink is faster
You should update your code tutorial within the link. Misleading infos.
#include
SoftwareSerial SIM900A(10,11); // RX | TX
// Connect the SIM900A TX to Arduino pin 2 RX.
// Connect the SIM900A RX to Arduino pin 3 TX.
it's Arduino pin 10 and 11 guys not 2 and 3
Thanks for your correction
Hey sir! I tried your code, my sim900a is working but I still can't receive/send sms.I also edit the number and tried different baud rate 9600, 2400 and 1200. PLEASE HELP me on solve this problem. Need this for my project. THANKS
same with me did you solve it?
This model is only for the Indian market and requires 2a supply.
Hi, do you know what this error about "+CME ERROR: 765"?
Can u please tell which generation sim u have used in this video?
do you mean the SIM card network? I think it's 3G SIM.
but this module should work with any SIM.
@@miliohm thanks, 4g will do fine?
@@rashmiraju9980 sure
sir will u please upload the code for AT COMMANDs to the gsm model
Did anyone help me with, i need reciving text as seperate variable i need to store the message to string or integer.
wich sim 2g 3g 4g do you used in video please tell me
Sorry it's 4G. But since the SIM module only able to use 2G. Then I can only use 2G network
thanks for this video, it works for my sim900a shield
Sir, how download code from links?
Hello, I am from South Africa. I have tried all network SIM cards in my country but the SIM900A doesn't get a signal. It blinks fast not after every 3 seconds. Please help!!
Try watch this : th-cam.com/video/qI8vdiQdXtA/w-d-xo.html
It's for SIM800L but it works almost the same wwy
Hello! Is this module (sim 900a)compatible with orange/digi/vodafone sim cards?
Never use that, but I think should works with any SIM cards
Bro can use Airtel 4g sim.
1. Can Arduino uno be used for commercial purpose or it is just made for school project work?
2. Is there cache memory problem in Arduino uno board after its continuous use ?
Both. I'd use a nano or mini though.
Schools are already making cash......lol
gsm 900a get coverage in malaysia? cause my gsm is not working..blink so fast like dont get the coverage
hope u can help
@@azrolazhan9804 usually it caused by low power. Try add more current by using external power supply not only from arduino. Seharusnya bisa, karena di Indonesia lancar, mungkin malaysia tidak berbeda jauh.
miliohm thanks for the information
what the other power resource that been u used?
Hi sir, i get error message when i tried to send s in serial monitor. Can you tell what's the problem of my work?
What it said?
Hello, can i able to use c# for development? if capable, what libraries will i use? . Thank you
you just need serial communication, and understanding AT command. You are ready to go.
@@miliohm It dont need to add any gsm library? . Thank you
@@bryanmartinez19 nope, as long as you understand the AT command
@@bryanmartinez19 but the easiest way i think you should use arduino as a helper
Use c++, not c#.
Sir please tell me how to make IVR GSM SYSTEM circuit
can i use it my C sharp(visual studio) program. can i send any type of sim in it.
You should use serial interface to arduino to communicate with your C#
Sir can you control relays using this sim900a. Plz reply.
Yes we can, with arduino.
@@miliohm Can you give me the code and schematic?
I followed the video and connected the power to the 5V of the uno but the led is still blinking every 1 second. How do I fix this?
You can follow my another video on SIM800L troubleshooting guide. It is for V1, but it is almost the same.
@@miliohm Thank you for the reply. I am assuming it is because the uno board cannot provide enough power. Do you have any suggestions for an external power supply? My SIM900a does not have a female dc adapter.
@@loggerino7331 you can use any kind of power supply as long as it can provide 2A current. Then just connect it with jumper cable.
@@miliohm Hello again, so I now have an external adapter 5V 2A and the SIM900A blinks every 3 seconds now, but it still cannot send out messages to my phone. Why is this happening?
What the answer of the AT command?
sir, my led on the top right is not blinking. can you solve the problem?
Maybe it's the power issue. Try checking the voltage at VCC and GND of SIM module
sir ,
serial monitor shows "SIM900A Ready
Type s to send message or r to receive message
Sending Message
Set SMS Number
Set SMS Content
Finish
Message has been sent ->SMS Selesai dikirim
" but no message sent to my phone. can you please tell me the reason why message is not sending to my phone??
I got same issue
Is it possible to connect SIM 900A with Arduino Micro ATMEGA32U4?
sure, as long as you have serial port
We can Airtel 4g sim?
Video was very good but in some trackers we use GPS module which is costly, I think this one is based on mobile sim it will get coordinates from cell tower ?.
Otherwise this one is good ...keep it up amazing work
No co-ordinates possible...
Where do I type the number on the code I want to send sms to
my gsm sim900a did not receive any AT commands
Gsm did not responds any of my AT commands in my serial monitor
Check the wiring and baudrate. Test using a multimeter
hy sir how we will knows tx and rx pin in v1.9b gprs gsm module having 14 pins .. kindeely help me
Arif Firam can you show me the picture first?
Do you have the software serial file? can u post inside too?
Did you mean the library?
It's already included in arduino IDE
@@miliohm yes, because I have try it, but the phone do not receive the message, so I wonder is it due to different software serial library
And do it limit which type of simcard can be used only like u mobile or digi can be used or not?
Sir do gsm module supports 4g sim?
It support 4g sim but it works on 2g services in India you can use any 4g sim expect Jio. Because jio does not support 2g services. 👍
Could it send data to webserver pak ?
sure, you can watch my video about how to send data to a web server using SIM800L. It works the same way
Is it possible for http request?
Hello sir. I am new here. Can you tell me how can i use this module in my humanoide robo project plz help me.
Use for what?
@@miliohm i am working on humanoid robot at my home. I want to make a program for it.
@@miliohm if you can make that program for ardiuno i will pay you for it
@@cherishpups96 I need to know the function of this SIM in your robot. To control or what?
Sir can help me doing coding for my project..?
هل الرقم الموجود في كود هو نفس رقم الشريحة الموصولة sim900
My project name is smart street lamp .. I use ir sensor , ldr sensor and gsm sim900a .. sir
just google how to use ldr, and mix with this tutorial
Good day, sir, I did not receive any message, I followed all the step and everything seems alright. The only problem is the message cannot receive by phone. May I know what's wrong?
Is the AT command test work? see at the website. If it doesn't you have problem communication between the arduino and SIM900A module.
miliohm the communication test work. But when it come to sending the message, my phone did not receive any message even it said the message is sent
Suet Fen did you edit the phone number? Did the module already got the signal?
Yes.. I do..
suet fen i have also such problem.kindly guide me.
thank you.
my gsm module is not blinking, what might be the reason ???
Check the power. When it powered it should blink
@@miliohm it’s not blinking when powered with 5v
@@mominkhadri8062 maybe you have problem with your wire. Check the end of wires with multimeter. Or maybe you have problem with your SIM900A module
@@miliohm thanks
sir my sim900A not blinking after connecting to the arduino based on your tutorial.what is wrong? is that because the sim900A was broken or the arduino?
how to test the sim900A whether tbroken or not?
please help me sir, i really appreciate that.tq
either your gsm is country lock or current is low
Is it work on 3g or 4g sim?
both
where can i order this components.
There are many on Aliexpress
Hi! How long did it take for the module to finish searching for networks? The blinking red in the corner is fast and the power status blinks also every few seconds. How do i fix this?
maybe power supply is not enough try use 2 amp power supply. i think power bank also can..
can we replace sim900a with sim800l ?!
yeah sure, it works the same way
Hey why I can't receive the message, when I enter s, the serial monitor shown that the message has been sent. Please help me😭
Are you sure the number have changed?
@@miliohm yes I'm sure, i have changed the country code too.
@@hafizhafizi351 did your sim already got the signal? it should blink slower
@@miliohm yes i got it
@@hafizhafizi351 it should be your wiring. make sure vcc,gnd,tx,rx are connected. Did the gnd connected? and rx sim to tx arduino. tx sim to rx arduino.
Este programa solo sirve para el sim900, porque tengo un SIM800L, y no me esta funcionando, nunca he usado un adafruit, orientenme porfa
open my SIM800L tutorial here :
th-cam.com/video/wqraxBVwF70/w-d-xo.html
sir, i have follow all the Steps , but my LED from SIM900A blinkt too fast, that means the Signal is too weak, right ? But i change everywhere, still cant blinkt slowly. Someone can help me ? :(
your SIM900A is not working
so what is the solution for such a thing @@vonnevaldez9652
@@shkokmo5074 Buy new one.
hi how long to wait for a connection to establish?
sorry for late reply, did you mean to get the signal? it just took few seconds. not more than 10 seconds if the network is good.
Helo sir, i am not getting any message in my phone after pressing s character , but serial monitor shows message sent what is happening sir.Can you please help me to sort out this problem
bruh..if middle LED is blinking also what it mean?
Can you name all kind of the wires😊
How to power up Arduino and GSM SIM900A module from same supply?
if you use 5V power supply, simply connect 5V PSU to 5V arduino and GND to GND arduino.
For SIM900A you need to decrease the voltage to around 4.2V. You can use stepdown module, or use some diode after output before connect to SIM900A.
don't forget to use the same ground for arduino and SIM900A module
@@miliohm Arduino Power jack requires 9V 500mA while GSM SIM900A requires 12V 2A. How to satisfy these requirement? Thanks for your reply.
Can I use 9V 2A power adapter for both ?
@@kvnptl4400 arduino need 7V min of you plug in power Jack. But you can use 5V if you connect at 5V pin. And SIM900A is not 12 V. It's 4,2V 2A.
what could be the problem in my work? Everything works fine, it's just won't send and receive messages.
is the signal ok? what it says in serial monitor?
miliohm hmm. I think my gsm module has different blinking pattern that's why i cant say if there is a signal or not. And also, the problem maybe is on the AT command. I followed the steps on the link which is to test the AT command and when I tested it, it wont send back "OK" when I send "AT" on the serial monitor
miliohm it also says "????" At the end of serial monitor
PGA Gabriel so you have problem with serial communication. Make the wiring is right and not swapped.
PGA Gabriel please check the baud rate
In serial monitor seems all ok... but didn't get any message
Try to topup your sim card
mine is already blinking normally but still can't send / receive sms, why is that?
Sudah cek saldo pulsanya?
can i send data via sms from this sensor?
yes
Now i get arduino error compiling....?
why to find the signal is difficult..the blinking always faster
Sometimes it caused by lack of current. Try use external power supply
@@miliohm can u explain a little bit more?
@@miliohm can u explain a little bit more?
@@daniasuraya9350 use external power supply with more current. Like 5V 2 ampere
@@miliohm oke... Tq for helping me... My GSM already have signal😊
If i didnt receive any message..it means my gsm broken??
Syed Taufik is the LED still blinking normally? How about the ATcommand test?
Syed Taufik did you check the baudrate? It should 9600
i have problem in gsm
Very Helpful. Thank you very much
Thanks! Don't forget to subscribe and share. That really make me happy 😁
send message to where？
how to use gprs with sim900a?
it's pretty same way. They use the exact same AT command. Just make sure the power supply is sufficient
why my gsm sim900 blink so fast ?
try watching my video with the title "SIM800L Troubleshooting guide". It explained there.
This code is now not usable with #include SoftwareSerial
Why is that exactly?
Bang sy udh ikuti smua step tp lednya masih kedip cepat. Itu knp y? Apakah masalah imei tdk terdaftar?
Betul, bisa jadi masalah IMEI. kalau mau pastinya pake kartu khusus IoT aja. Kalau itu ga akan krna IMEI
thank you, i need this code please
you need to read the description
bro, di serial monitor udah seperti di video. tapi kok gaada sms masuk, itu kenapa ya? dan indikator led nya kaya gadapet sinyal. apakah kartu 4G sudah bisa support atau saya harus pakai yg 2G?
Ga masalah kartunya. Pake power arduino doang? Kadang ga kuat kalau arduino doang. Harus pake power tambahan dan diturunkan jadi maksimal 4,2V. Kalau dpt 5V juga kadang ga bisa.
tapi di video anda bisa ya bro pakai power dari arduino doang... jadi bingung saya. soalnya implementasi project saya ditaruh dijembatan yang tidak ada saklar nya, jadi gabisa pake adaptor tambahan. bisa bantu kah?
@@adamahlulkarimramadhan244 bisa mas tapi tidak stabil. Kalau pas kondisi tertentu bisa ga dapat sinyal. Power arduinonya pakai apa?
sementara pakai power dari laptop, nanti pas implementasi pake battery 9v bro
its say ERROR . What is the problem?
Is the AT command?
Test the connection by type “AT” and then enter. If the arduino reply “OK” means your connection is established and working. If still no answer from arduino then check your connection and wiring again.
serial monitor arduino tidak reply OK selepas taip AT. what should i do? sebaliknya keluar macam ini:
Arduino with SIM900A is ready
SIM900A started at 9600
Setup Complete! SIM900A is Ready!
⸮⸮⸮⸮⸮@⸮⸮
Very helpful 🎉 thank you 🔥
can i get the code sir
You can find the link at description
Bro bisa gak mengontrol (input) dan memonitor (output) via SMS?
bisa dong
still blink fast,and network is good why?
it is usually the power issue. If you use only arduino, try to give sim800L bigger current with another power supply.
Its gsm 900A
@@johnmathew8104 yeah that works the same way. I mean for gsm 900A too
i can t send msg any ideas ?????
Topup money for the sim card
pakai nomor apa kak?
vb.net and arduino with sim900a video request
Thank youuuu sir for this video! I can now send the message 👍👍👍
Thanks!
vtf
Board error i mean...
Saya mencoba dan di serial monitor muncul 'cannot init modem'
mohon petunjuknya ya
Its gsm sim900A
Thank you so much !
THE SIM900A "DONT WORK" ITS OBSOLETE! the system it uses is no longer being used! its a dead carrier! no phone! "GSM" is dead! GO TO "what will replace gsm" ON GOGGLE at www.google.com/search?client=ubuntu&channel=fs&q=what+will+replce+gsm&ie=utf-8&oe=utf-8