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Quectel EG25/EM05

Test SIM card⚓︎

Check if SIM is detected⚓︎

type 

AT+QSIMSTAT?

expected reply

+QSIMSTAT: 0,1
or 
+QSIMSTAT: 0,1

0,1 or 1,1 means that SIM is detected

GPS⚓︎

Enable⚓︎

Connect to the modem with 

microcom /dev/ttyUSB2

Enable GPS with the AT commands 

AT+QGPSCFG="autogps",1
AT+QGPS=1

Reading values⚓︎

  • Wait until the GPS receiver has found enough satellites to get a fix.
  • Get the GPS position with AT+QGPSLOC?
  • If the GPS receiver has no fix, the Not fixed now error is shown.
AT+QGPSLOC?
+CME ERROR: Not fixed now
  • GPS data can be continuously streamed from /dev/ttyUSB1 
    microcom /dev/ttyUSB1

Use WvDial to get a broadband connection⚓︎

- Optional *ln -s /dev/ttyACM2 /dev/modem*
- Run wvdialconf
- vi /etc/wvdial.conf
    - Init1 = ATZ
    - Init2 = AT+CFUN=1
    - Init3 = AT+CGDCONT=1,"IP","internet.telenor.se"
    - Modem Type = USB Modem
    - ISDN = 0
    - Phone = *99#
    - Modem = /dev/ttyUSB2
    - Username=;
    - Password=;
    - Baud = 9600
    - Stupid Mode = yes
    - Auto Reconnect = on
    - New PPPD = yes
    - Auto DNS = 1
- Run *wvdial &*
- Test *ping 8.8.8.8*
- Output could look like this:
    +-----------------------------------------------------------+
    |root@mx4:~# wvdial &                                   |
    +-----------------------------------------------------------+
    |[1] 599                                                    |
    +-----------------------------------------------------------+
    |root@mx4-v61:~# --> WvDial: Internet dialer version 1.61   |
    +-----------------------------------------------------------+
    |--> Initializing modem.                                    |
    +-----------------------------------------------------------+
    |--> Sending: ATZ                                           |
    +-----------------------------------------------------------+
    |ATZ                                                        |
    +-----------------------------------------------------------+
    |OK                                                         |
    +-----------------------------------------------------------+
    |--> Sending: AT+CFUN=1                                     |
    +-----------------------------------------------------------+
    |AT+CFUN=1                                                  |
    +-----------------------------------------------------------+
    |OK                                                   |
    +-----------------------------------------------------------+
    |--> Sending: AT+CGDCONT=1,"IP","internet.telenor.se"       |
    +-----------------------------------------------------------+
    |AT+CGDCONT=1,"IP","internet.telenor.se"                    |
    +-----------------------------------------------------------+
    |OK                                                         |
    +-----------------------------------------------------------+
    |--> Modem initialized.                                     |
    +-----------------------------------------------------------+
    |--> Sending: ATDT*99#                                      |
    +-----------------------------------------------------------+
    |--> Waiting for carrier.                                   |
    +-----------------------------------------------------------+
    |ATDT*99#                                                   |
    +-----------------------------------------------------------+
    |CONNECT 100000000                                          |
    +-----------------------------------------------------------+
    |--> Carrier detected.  Starting PPP immediately.           |
    +-----------------------------------------------------------+
    |--> Starting pppd at Mon Dec 16 12:43:43 2019              |
    +-----------------------------------------------------------+
    |--> Pid of pppd: 1317                                      |
    +-----------------------------------------------------------+
    |--> Using interface ppp0                                   |
    +-----------------------------------------------------------+
    |--> local  IP address 46.194.155.114                       |
    +-----------------------------------------------------------+
    |--> remote IP address 10.64.64.64                          |
    +-----------------------------------------------------------+
    |--> primary   DNS address 195.54.122.211                   |
    +-----------------------------------------------------------+
    |--> secondary DNS address 195.54.122.221                   |
    +-----------------------------------------------------------+
  • ping 8.8.8.8
    • 64 bytes from 8.8.8.8: seq=0 ttl=55 time=55.250 ms

Or using pppd - see https://github.com/hostmobility/mx4-wiki#modem

GPS⚓︎

- This is just one way of many to set up and get GPS position data..
    - AT+QGPS=1 (Turn on  GNSSengine)
- AT+QGPSCFG="autogps",1
    - AT+QGPSEND (Turn off GNSSengine)
    - Output example gps-parser /dev/ttyUSB1 or AT+QGPSLOC? (AT+QGPSLOC=latitude)
    +-------------------------------------------------------------------------------+
    |+GPRMC: Fix Time: 19222 12:37:9 Lat: 57.40.431402, Long: 12.0.831634 Speed: 0  |
    +-------------------------------------------------------------------------------+
    |+GPRMC: Fix Time: 19222 12:37:10 Lat: 57.40.431402, Long: 12.0.831650 Speed: 0 |
    +-------------------------------------------------------------------------------+
    |+GPRMC: Fix Time: 19222 12:37:11 Lat: 57.40.431401, Long: 12.0.831660 Speed: 0 |
    +-------------------------------------------------------------------------------+

Audio⚓︎

Loopback Audio Test⚓︎

  • AT+QSIDET=10000
  • AT+QAUDLOOP=1
  • AT+CLVL?
  • Loudspeaker Volume LevelSelection
  • AT+CLVL=4 Recommended
  • Factory default AT+QDAI=5,0,0,4,0,1
  • factory default AT+QMIC=20577,14567

Answer call⚓︎

  • ATV1
  • ATA