yasan sudoh

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10 years, 9 months ago.

About C027_ModemTransparentSerial

From last week, I've been testing the C027-U200.

I downloaded the C027_ModemTransparentSerial. And, I am a verified by serial test program called m-center.

So, I have a question.

(I'm referring to the U200-AT command list) using the m-center, we try various network connection (such as GPRS connection). However, I can not connect to the network.

Can C027_ModemTransparentSerial play the network connection by an AT command? Is m-center available on this occasion?

Please tell me. Thank you.

2 Answers

Michael Ammann
10 years, 9 months ago.

  • make sure you have a proper SIM card inserted
  • make sure you have the antennas properly connected.
  • make sure device is powered
  • connect the USB to pc
  • install the mbed windows drivers
  • start m-center
  • press the button "set port" and select the mbed serial port at 115200 , click ok.
  • press button "connect" and m-center, and m-center will try to register to the network available. Eventually you will have to provide the pin for the sim card.
  • you can check the registration in upper right corner of application and should see the model information.
  • You can also manually type AT commands in the AT terminal (button, top right)

Maybe you can also read the LISA-U AT command manual and datasheet or m-center user guide.

yasan sudoh
poster
10 years, 9 months ago.

Thanks for the reply

Can I use any Windows8?

There have been general issues in general with Windows 8 and mbed. For example: the mbed driver is unsigned so you may not be able to install on a x64 system. You can check with the device manager if the driver was properly installed. you should have three mbed devices (HID,Disk,Serial)

posted by Michael Ammann 25 Mar 2014

If you enter the PIN code correctly, it is No operater. (Top right of the screen) However, it is the SIM ready.

Remains "No operater", Can I connect to the Net? It is a "registration denied" is "RegistrationStatus" of the network screen of M-center. You can not improve from this state.

Please tell me

posted by yasan sudoh 28 Mar 2014