Abstract QT, as a cross-platform application development framework, has always been the top choice for Linux user interface development. Since its inception in 1991, QT has been acquired multiple times, but its features for cross-platform development and support for multiple platforms have only increased. This article is an excerpt from a technical post by enthusiastic … Read more
This article introduces how to configure the Qt runtime environment on an embedded Linux development board and perform Qt program running tests. 1 Compiling tslib I have previously used tslib for testing the touchscreen, so I will record the compilation process here. Download the source code of the tslib library: https://github.com/libts/tslib/tags Copy the downloaded source … Read more
Concubine: “Your Majesty, I heard that you are recently researching an IoT project? I would like to try developing a simple sensor monitoring system, but I don’t know where to start…” Majesty: “It is good that you have such ambition. Today, I will teach you to use Cursor, this magical tool, to easily master sensor … Read more
1 1. Remote Monitoring and Data Visualization Basic Concept By utilizing the Ethernet interface of Siemens S7-1200/1500 series PLCs, combined with Alibaba Cloud IoT platform, real-time data collection and remote monitoring of equipment operation can be achieved. The key point is the integration of PLC with MQTT protocol. Hardware Configuration PLC side: Configure CP1543-1 communication … Read more
Hello everyone, I am Lao Jiao! Today we are going to talk about a technology that can leapfrog factory operational efficiency: Siemens PLC in industrial IoT for data collection and remote monitoring. Imagine being able to grasp every detail of the production line from your office, isn’t that cool? Why Choose Siemens PLC? The industrial … Read more
Years ago, when renovating an old production line, it was difficult to achieve data collection and remote monitoring solely relying on the PLC itself. Later, by adding communication modules and integrating with cloud platforms, not only was the problem solved, but it also brought considerable benefits to the factory. Today, I will share some practical … Read more
I will write a technical article on the integration of Siemens PLC with MQTT for cloud data transmission, under the alias ‘Su Ge’. New Approaches for Siemens PLC in Industrial IoT: Complete Solution for Cloud Data via MQTT Recently, many friends in factory automation have asked me: “Su Ge, with all this talk about the … Read more
Hello everyone, I am Xiao Ji. Today, let’s talk about how to use Omron PLC to achieve data collection and remote monitoring in the Industrial IoT. This topic sounds sophisticated, but it essentially means enabling our production equipment to communicate and report its status anytime, anywhere. Imagine lying on your sofa at home and being … Read more
Mainflux is a secure, scalable open-source IoT platform developed and maintained by a startup in France, built using the Go programming language and adopting a microservices architecture. Mainflux supports various access devices, including devices, users, and apps; it also supports multiple protocols, including HTTP, MQTT, WebSocket, and CoAP, and facilitates protocol conversion between them. Mainflux’s … Read more
1. What is MQTT? MQTT, short for Message Queuing Telemetry Transport, is a lightweight protocol designed specifically for devices with unstable networks and limited bandwidth. For example, in Northeast China, there are times when the signal is poor, making it difficult to access the internet on mobile phones. This is when MQTT comes into play. … Read more