Serial-Studio/examples/LTE modem

LTE modem HUAWEI K5161H + Serial Studio Example

Overview

This project demonstrates how to use Serial Studio and MQTT to visualize data from a LTE modem HUAWEI K5161H.

Using in this example

• OS Archlinux
• Mosquitto: MQTT broker
• Python
• paho: Python client library for MQTT

Step-by-Step Guide

1. MQTT broker Mosquitto

To install MQTT Broker Mosquitto run in terminal:
sudo pacman -S mosquitto

To run MQTT Broker Mosquitto with default settings run in terminal:
mosquitto --verbose

2. Parse data from LTE modem API

For simple cases, you can send data frame to MQTT from terminal, e.g.:
mosquitto_pub -m "100,50,75,89" -t "lte"

For complex situations, you can use Python (or another language for your choice) to retrieve and form the data frame.
An example script is contained in the file lte_mqtt.py

Install paho - Python client library for MQTT:
sudo pacman -S python-paho-mqtt

Run in terminal:
python lte_mqtt.py

Data frame will send to MQTT every 5 seconds.

3. Serial Studio Configuration

1. Download and Install Serial Studio:

   Visit Serial Studio's official website to download and install the software.

2. Open Serial Studio and configure MQTT:

   • Set the Host: 127.0.0.1
   • Set the Port: 1883
   • Set the Topic: lte
   • Set the Mode: Subscriber
   • Set the Keep Alive: 600
   • Click Connect
     

3. After get first frame of data Serial-Studio will automatic open dashboard with plots.

4. Use Project editor to configure dashboard.

UDP Socket

Solution with UDP Socket looks much simpler than MQTT.

Run in terminal:
python lte_udp.py

Serial Studio Configuration for UDP Socket

• Set the DEVICE SETUP: I/O Interface: Network Socket
• Set the Socket type: UDP
• Set the Remote address: 127.0.0.1
• Set the Local port: 5005
• Set the Ignore data delimeters: True
• Click Connect