Arduino Forum

Products => Arduino GSM Shield => Topic started by: 1serge on Aug 01, 2018, 04:47 pm

Title: Problem using the GSM shield 900
Post by: 1serge on Aug 01, 2018, 04:47 pm
I need help with the arduino sim 900 shield,I have tried all the possible connections and I codes I only get infinite question marks or unreadable characters in the serial monitor.
I am in Ghana,can anyone help me?
Title: Re: Problem using the GSM shield 900
Post by: KASSIMSAMJI on Aug 03, 2018, 06:34 pm
post your sketch here ,

post up a drawing/image showing how you connected the shield ( not fritzing diagrams)
Title: Re: Problem using the GSM shield 900
Post by: remspeter on Sep 17, 2018, 08:12 pm
Hi, do you have the Arduino board separated from the SIM 900 board ? I am in Argentine. Best regards.
Title: Re: Problem using the GSM shield 900
Post by: remspeter on Sep 17, 2018, 08:21 pm
The idea is to test the SIM 900 board first with AT commands directly from the PC trought serial port (without Arduino). In this way you could confirm 100 % that the the SIM is OK.
Title: Re: Problem using the GSM shield 900
Post by: tioandrian on Sep 18, 2018, 08:05 pm
i need help..
i use telkomsel provider, i am from indonesia..

this my error .. acces denied

error :

Koneksi dengan Arduino BERHASIL


AT+CREG=1

OK

AT+CGATT=1

OK

AT+CIPSHUT

SHUT OK

AT+CIPMUX=0

OK

AT+CSTT="internetWAPWAP123"

OK
AT+CSTT?

+CSTT: "internet
AT+CIICR

OK

AT+CIFSR

10.134.63.91

AT+CIPSTART="TCP","cekradon.com",80

OK

CONNECT OK


HTTP/1.1 200 AccessDenied
Date: Tue, 18 Sep 2018 18:02:45 GMT
Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Expires: Sat, 6 May 1995 12:00:00 GMT
Pragma: no-cache
Content-Length: 284
Content-Type: text/html; charset=UTF-8

<?xml version="1.0"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML Basic 1.1//EN" "http://www.w3.org/TR/xhtml-basic/xhtml-basic11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
    <head>
        <title>!</title>
    </head>
    <body>
        <p>Access denied</p>
    </body>
</html>


please help i attach my list coding,, thanks