A6 GSM GPRS Module AT Commands

How to connect A6 GSM GPRS module with Arduino and also work with “AT” commands.

Jun 7, 2019

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home automation

smart appliances

security

Components and supplies

Jumper wires (generic)

Arduino UNO

A6 GPRS Module

Tools and machines

Mastech MS8217 Autorange Digital Multimeter

Project description

Code

arduino

1Once the wiring is completed, you can start programming.
2
3
4How  to work with AT commands.?
5
6
7#include <SoftwareSerial.h> 
8
9SoftwareSerial  A6MODULE(2,3);
10
11void setup() {
12  // put your setup code here, to run once:
13  Serial.begin(9600);
14delay(1000);
15  A6MODULE.begin(9600);
16delay(1000);
17}
18
19void  loop() {
20 
21 while(A6MODULE.available()){
22  Serial.write(A6MODULE.read());
23  }
24
25  
26 while(Serial.available()){
27  A6MODULE.write(Serial.read());
28  }
29
30}
31
32After Uploading codes, run the serial monitor.
33
34Now type  AT and press enter. If all the things are in order, Serial monitor will say “OK”
35
36HOW  TO CALL?
37ATD command is used for dial a phone call.
38
39Eg: Type ATD+123456789  then enter (your phone number)
40
41 HOW TO SEND SMS?
42Type AT+CMGF = 1  then  enter “ Answer should be OK”
43
44Then Type AT+CMGS = “+123456786” then enter  (your phone number)
45

Once the wiring is completed, you can start programming.


How  to work with AT commands.?


#include <SoftwareSerial.h> 

SoftwareSerial  A6MODULE(2,3);

void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
delay(1000);
  A6MODULE.begin(9600);
delay(1000);
}

void  loop() {
 
 while(A6MODULE.available()){
  Serial.write(A6MODULE.read());
  }

  
 while(Serial.available()){
  A6MODULE.write(Serial.read());
  }

}

After Uploading codes, run the serial monitor.

Now type  AT and press enter. If all the things are in order, Serial monitor will say “OK”

HOW  TO CALL?
ATD command is used for dial a phone call.

Eg: Type ATD+123456789  then enter (your phone number)

 HOW TO SEND SMS?
Type AT+CMGF = 1  then  enter “ Answer should be OK”

Then Type AT+CMGS = “+123456786” then enter  (your phone number)

Downloadable files

Wiring

Comments

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Anonymous user

3 years ago

I want to add a code that enables me to restart my device just with SMS. Do you know where that should be added, is it possible to add as a peek() option. My problem is that the message will be saved and it is not possible to access the coming string as simple as possible.

SetNFix

3 years ago

If you try to filter the read SMS and new SMS the code will be complicated. But you can do a thing that, once the code is read and the delete the sms

Anonymous user

3 years ago

Hi Was wondering if A6 can detect DTMF tones? thanks

SetNFix

3 years ago

Yes the module can detect it.

Anonymous user

3 years ago

I have 12v battery, Can I supply 12v to the A6 module or should i drop down the input voltage to 9v by voltage dividor circuit?

Anonymous user

3 years ago

yes you must

Anonymous user

3 years ago

Please, I need help with this project. After the project is uploaded fine, I opened the Serial Monitor, I wrote AT and press Send button but nothing is happening. The SIM card is unlocked (without PIN). When I try to call the SIM from my telephone several squares appears in the Serial Monitor and I can hear the calling tone.

Anonymous user

3 years ago

Hello, you must well configure the same baudrate for the serial monitor and the software serial Device. for example Serial.begin(9600); GSMmodule.begin(9600); And in the serial monitor, don't forget to choose (Both NL&Cr) I think. Then, you can see the AT commands and responses

SetNFix

3 years ago

This is another video about GRS/GSM modules. All the details about this A6 module programming for testing AT commands are included in this video. If you have any doubt, pls put it in the comments below. http://www.setnfix.com http://www.setnfix.com/2019/03/a6-gsm-gprs-module-at-commands.html यह जीआरएस / जीएसएम मॉड्यूल के बारे में एक और वीडियो है। एटी कमांड के परीक्षण के लिए इस ए 6 मॉड्यूल प्रोग्रामिंग के बारे में सभी विवरण इस वीडियो में शामिल हैं। यदि आपको कोई संदेह है, तो pls इसे नीचे टिप्पणी में रखें। http://www.setnfix.com http://www.setnfix.com/2019/03/a6-gsm-gprs-module-at-commands.html

Anonymous user

3 years ago

where is <SoftwareSerial.h> ?

Anonymous user

3 years ago

it's doesn't work

Anonymous user

4 years ago

Anonymous user

3 years ago

Anonymous user

5 years ago

I have 12v battery, Can I supply 12v to the A6 module or should i drop down the input voltage to 9v by voltage dividor circuit?

Anonymous user

3 years ago

yes you must

Anonymous user

6 years ago

Hi Was wondering if A6 can detect DTMF tones? thanks

SetNFix

3 years ago

Yes the module can detect it.

Anonymous user

6 years ago

SetNFix

3 years ago

If you try to filter the read SMS and new SMS the code will be complicated. But you can do a thing that, once the code is read and the delete the sms

Anonymous user

6 years ago

Hello - I have an A6 module. I would like to run it on a lithium 3.7V battery. Can I bypass the regulator? Should I use a buck booster? I would rather not have the inefficiency but if needed, I can do this. Anthony

SetNFix

3 years ago

3.7 volt may not enough to run the module. Do not bypass the regulator as it may caused to dammaged the module. If posible, you can use a buck booster .

SetNFix

6 years ago

SetNFix

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