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Using SMS Messaging
.
•
To learn how to use your modem for GPS, refer to
Chapter 6 – Using GPS
.
•
To learn about your modem’s header, refer to
Chapter 7 – Using the Modem’s
Header
.
Using the Modem in Linux or Android based Devices
Linux and Android users can use either the serial port or USB port to talk to the modem.
Continue below to learn about using the serial port, or go to
Using the USB port with
Linux or Android
to learn how to install and use the USB port in Linux or Android based
systems..
Using the Serial port with Linux or Android
If you have not already plugged in a serial cable between your windows device and the
modem go ahead and do that now. If you want to use the modem’s header to access the
serial port, please see Chapter
7 Using the Modem’s Header
.
To talk to the modem you typically set your com port speed to the modem’s default
speed of 115200 bps. If your application requires the modem to use a different serial
port speed, you will need to set the modem up to use this speed. Changing the serial
port speed is done using the
AT+IPR
command. The format of the
AT+IPR
command is:
AT+IPR=<speed>
Where <speed> is the desired serial port speed in bps. Available speeds are 300, 600,
1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, or 230400. More detailed
information on the
AT+IPR
command can be found in the Huawei AT Command manual.
This manual is available at
www.zoomtel.com/4575support
.
To send the command, you can use the Linux console or download an open source
terminal program. Remember that after you send that
AT+IPR
command to change the
serial port speed, you will need to change the serial port speed of your terminal program
to continue to talk to the modem.
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