3G Click -- Not receiveing SMS?!

[yuxun88]

Hi fellows,

I got confused with setting up 3G Click correctly on PIC18-Clicker 2. This it what I do. I am just not receiving any sms.

void GMS_Int(){
clear_GSMbuff();
UART2_Write_Text("AT");
UART2_Write(13);
UART1_Write_Text("AT\r\n");
//print_buff2();
wait_responds("OK");

clear_GSMbuff();
UART2_Write_Text("ATE0");
UART2_Write(0x0D);
UART1_Write_Text("ATE0\r\n");
//print_buff2();
wait_responds("OK");

clear_GSMbuff();
UART2_Write_Text("AT+CMGF=1");
UART2_Write(0x0D);
UART1_Write_Text("AT+CMGF = 1\r\n");
//print_buff2();
wait_responds("OK");

clear_GSMbuff();
UART2_Write_Text("AT+CNMI=1,2,0,0,0");
UART2_Write(0x0D);
UART1_Write_Text("AT+CNMI=1,2,0,0,0\r\n");
//print_buff2();
wait_responds("OK");

clear_GSMbuff();
UART2_Write_Text("AT+CSCS=\"GSM\"");
UART2_Write(0x0D);
UART1_Write_Text("AT+CSCS=GSM\r\n");
//print_buff2();
wait_responds("OK");

clear_GSMbuff();
UART2_Write_Text("AT+CPBS=\"SM\"");
UART2_Write(0x0D);
UART1_Write_Text("AT+CPBS=SM\r\n");
//print_buff2();
wait_responds("OK");

clear_GSMbuff();
UART1_Write_Text("Ready!");
UART1_Write(13);
UART1_Write(10);
}

There are 5 pins we can configure on the 3G Click.
PWRKEY -- to turn on the power. I get it, but in the example why it do this
GSM_PWR = 1;
Delay_ms( 100 );
GSM_PWR = 0;
Delay_ms( 2500 );
GSM_PWR = 1;
Delay_ms( 12500 );
why not just turn it on? what is the theory behind this?

STAT -- What does this do?
R1 -- Ring Indicator. No problem.

CTS -- Clear to send.
RTS -- Request to send.
How does these two work? Do I need to send a high signal to RTS and wait for a high signal from CTS everytime sending a sms?

I only need this to send and receive sms. I used to do it with GSM click, but 2G is suspended in Aus no long ago. My problem I could not get it work. Not receiving any sms, havn't tried sending one.

I figure I am setting the pins wrong. I only put PWRKEY high. Any thoughts?

Cheers,
Tom

[yuxun88]

Turn out No Carrier! what!?!?!?

[yuxun88]

I tried AT+COPS=0 and it returns +CME ERROR: 111. CME ERROR 111 means PLMN not allowed.

[yuxun88]

I put AT+COPS=? and find out there is one available operator

(1,"Telstra Mobile","Telstra","50501",2)

but how do I connect to it?

[yuxun88]

Try this command
AT+COPS=1,1,"Telstra"
come up with
CME error 32 -- Network not allowed - emergency calls only

[Aleksandar.Mitrovic]

Hi,

I will try to make you some example for the 3G click on Clicker 2 for PIC18FJ.

Until then, I suggest you to try use this example:
https://github.com/MikroElektronika/Click_3G_UG95

Here is explained what each pin represent:
http://dl.btc.pl/kamami_wa/ug95_hd.pdf

Here you will find the list of AT commands:
http://dl.btc.pl/kamami_wa/ug95_atcm.pdf

Kind regards,
Aleksandar

[yuxun88]

Hi,

I will try to make you some example for the 3G click on Clicker 2 for PIC18FJ.

Until then, I suggest you to try use this example:
https://github.com/MikroElektronika/Click_3G_UG95

Here is explained what each pin represent:
http://dl.btc.pl/kamami_wa/ug95_hd.pdf

Here you will find the list of AT commands:
http://dl.btc.pl/kamami_wa/ug95_atcm.pdf

Kind regards,
Aleksandar

Hi Aleksandar,

Thank you for the reply.

I am using it to receive and send sms. Everything works well now expect the module itself shuts down and resets sometime during receiving or sending process. Do you have any clue about this?

Kind regards,
Tom

[Aleksandar.Mitrovic]

Hi Tom,

Did you try to use some additional power on the Clicker board?
Like Battery.
You can send me your project and I will test it on my board.

Kind regards,
Aleksandar

[yuxun88]

Hi Tom,

Did you try to use some additional power on the Clicker board?
Like Battery.
You can send me your project and I will test it on my board.

Kind regards,
Aleksandar

Hi Aleksandar,

You are damn right about the power. It fixes the problem by having a battery. I checked the hardware design guide for ug95, it requires sufficient current supply up to 2A at least. The power supply I am using it 5V,1A. To be able to work without a battery attached, what do you reckon? I am thinking to upgrade the power supply to 2.6A or do I need to use vsys pin ?

Best regards,
Tom

[Aleksandar.Mitrovic]

Hi Tom,

I'm glad that your hardware is working.

Yes you can use VSYS PIN for that.

Regards,
Aleksandar

[yuxun88]

Just found out Quectel is not as good as Telit regarding sending SMS. You can send a very long text with Telit. For Quectel, if it is more than 160 characters, it is not responding.

[filip]

Hi,

We will have to check that behavior.

Regards,
Filip.