The required UART drivers are usually distributed as part of the Linux kernel since v4.4.132.
Check whether the required kernel module is loaded:
lsmod | grep option.Check whether you have read/write access to USB-UART bridge:
ls -la /dev/ttyUSB*.
With the Minicom app
Step 1: Install Minicom
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sudo apt install minicom |
Step 2: User must belong to the 'dialout' group
Check with:
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groups USERNAME |
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For the changes to take effect, log off the user and log on again |
Step 3: Then you can connect to the device:
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minicom -D /dev/ttyUSB1 |
Step 4: Send AT Command to USB Connect LPWA
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ATI |
Step 5: Wait of response from USB Connect LPWA
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Manufacturer: u-blox
Model: SARA-R410M-02B
Revision: L0.0.00.00.05.08 [Apr 17 2019 19:34:02]
SVN: 03
IMEI: 352753099064196
OK |
Useful link:
https://wiki.emacinc.com/wiki/Getting_Started_With_Minicom
Linux setup & troubleshooting
Currently, the ModemManager package (confirmed for version 1.10.0-1~ubuntu18.04.2) detects the USB Connect LPWA (R410) as a general QMI-WWAN modem and tries to configure it. Besides failing this task it blocks any "user" AT commands, e.g. using minicom.
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