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.

GSM-based devices uses AT Commands as the primary software interface. The tool uses AT commands to communicate with the cellular modem devices. Key features supported by AT Command Tester tool. Single/Batch AT commands – Users can write/save/load scripts to send batch of AT commands. 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. 1.Configure and connect to modem ports. 2.Send single or batch of AT commands Perform modem diagnostics. 3.Establish 3G or GPRS call 4.Collect and save modem logs.

Then select the right baud rate. The default rate for the shield is set to 9600.

Then press 'Connect' button. 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.

• Next press and hold the Power key and Volume down key for ten seconds. Type 1: Type 2: Type 3: • Turn off the phone. Lg x135 proshivka 4pda phone. • Next press the power button again. • Release the power key while holding down the volume key.

+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.