Contents • • • • • • • • • • • Introduction is an online tool for testing AT commands and other module features such as,,,,,,,, etc. AT Command Tester can be used with (GPRS/EDGE/1x) or (HSDPA/HSPA/EVDO) or (LTE) How to use AT Command Tester with the GPRS Shield AT Command Tester need to communicate directly with the SIM908 module. Download the sketch under the section 'How to drive the GSM Mode via USB port' from above to you arduino board. Press the 'RST' button on the SIM908 shield. Make sure that only the 'PWR' LED is turned on red.
The 'STAT' and 'NET' LED should be OFF. On the AT Command Tester, press the 'Find Ports' button. It should list the port that your Arduino board is connected to. Then select the right baud rate. The default rate for the shield is set to 9600. Then press 'Connect' button.
AT Command Tester is an online tool for testing AT commands and other module functionalities such as data call, voice call,HTTP, network registration, SMS,. AT command tester is a free online software tool that is used to test AT commands and other functionalities of GSM modems. The friendly user interface allows developers to Configure and connect to modem ports Send single or batch of AT commands Perform.
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If a successful connection is established, AT Command Tester should get device info as shown below. Now you can send supported AT commands in the 'Command' tab or exercise any other features from the other tabs. Send batch of AT Commands Under the 'Script Mode' tab, you can send batch of AT commands. You can create your own script and store it on your local computer. Modem Diagnostics The 'Diagnostics' tab can be used to get some basic modem information such as signal strength, whether the modem is registered, operator info, connection status etc.
SIMCOM_Ltd OK Manufacturer: SIMCOM_Ltd SIMCOM_SIM908 OK Model Number: SIMCOM_SIM908 Revision:1137B04SIM908M64_ST OK Revision: Revision:1137B03SIM900M64_ST +CSQ: 8,0 OK Signal level is -97 dbm. Signal condition is marginal.The signal strength range is -53 dbm (Excellent) to -109 dbm (Marginal).
+CREG: 0,1 OK The device is registered in home network. +CGACT: 1,0 +CGACT: 2,0 +CGACT: 3,0 OK Device is NOT connected. +COPS: 0,0,'T-Mobile' OK Device is currently on 'T-Mobile' network. +CPIN: READY OK SIM is ready. Set up voice call You can test incoming and outgoing voice calls with AT Command Tester.For outgoing calls, simply enter the calling number and press dial. For incoming, call the modem from an external phone. AT Command Tester will automatically detect the incoming call and provide a prompt.
The AT command sequence for outgoing call is shown below, Checking registration status. +CREG: 0,1 OK The device is registered in home network. Dialing number 858xxxxxxx 858XXXXXXX; OK Voice call successfull Hanging up the call. ATH OK Call sucessfully dis-connected.
+CNUM: ','1858XXXXXXX',129,7,4 OK Data Call To set up a data call, you need to activate a PDP context which has information about the data connection parameters such as carrier APN, type of IP connection etc. You can create/edit/delete PDP contexts using the AT Command Tester application. To setup a data call, select the PDP Context and simply connect. AT Command Tester will check whether the modem is registered in the network before setting up the data connection. +CGDCONT: 1,'IP','epc.tmobile.com','0.0.0.0',0,0 +CGDCONT: 2,'IP','test5','0.0.0.0',0,0 +CGDCONT: 3,'IP',','0.0.0.0',0,0 OK Checking registration status. +CREG: 0,1 OK The device is registered in home network.
Checking if device is already connected. +CGACT: 1,0 +CGACT: 2,0 +CGACT: 3,0 OK OK Attaching to network. AT+CGATT=1 OK Connecting. OK Connect Sucessful SMS AT Command Tester can also test SMS send/receive function of the SIM908 GPRS shield. Under the 'SMS' tab, you can list/view/delete all the stored SMS messages. You can also send SMS message to a mobile number. Here is the sequence of AT commands to send SMS message, Checking registration status.
+CREG: 0,1 OK The device is registered in home network. ='858XXXXXXX' > Admin panel template in php free download. Test Message with AT Command Tester +CMGS: 20 OK SMS Send successful Network Selection Network selection is a feature that enables the user to manually select from the available networks.
Here are the commands for Network Selection, Finding Networks. +COPS: (2,'T-Mobile','T-Mobile','310260'),(1,'AT&T','AT&T','310410'),,(0,1,4),(0,1,2) OK Networks found Phonebook Phonebook feature enables user to add/delete/read/ phonebook entries stored on the SIM. Getting phonebook entries. +CPBR: 1,'*233',129,'Refill Now' +CPBR: 2,'#999#',255,'Check Balance' +CPBR: 3,',129,'Test' OK HTTP HTTP functions of SIM908 can be tested with the AT Command Tester.