Serial communication with LC29HEA

IoT Modules GNSS Module
1

I can use QGNSS on Windows with no problem.

But I would like to use Linux (specifically Raspberry Pi OS) to communicate with the LC29HEA module. I am sending RTCM messages to rtk2go.com using str2str and that works fine. However, I’d like to send commands to the module to change parameters occasionally.

I can use minicom to connect to the modem and I can see all the binary RTCM messages (not parsed, just garbled symbols since it’s interpreting it however) but don’t know how I can send commands.

Do I need to convert the commands to hex and send that way? Or is there a better program than minicom to use?

2

Answered my own question:

Used ser2net on the raspberry pi to pipe USB0 to port 3333 using the following yaml config file:

define: &banner \r\nser2net port \p device \d [\B] (Debian GNU/Linux)\r\n\r\n

connection: &con0096
    accepter: tcp,0.0.0.0,3333
    enable: on
    options:
      banner: *banner
      kickolduser: true
      telnet-brk-on-sync: true
    connector: serialdev,
              /dev/ttyUSB0,
              115200n81,local

restart ser2net service with sudo systemctl restart ser2net

on windows client with QGNSS sotware

  1. install VSPE
  2. In VSPE create a virtual connector
  3. In VSPE create TCP client connecting the COM port to the raspberry pi IP address and port
  4. Launch QGNSS and connect to the COM port you created in VSPE, but click on advanced options and choose RTS/CTS flow control
    qgnss