Click the “Blue Word: IoT Guesthouse” above to follow us Starting today, we will learn about the smart dormitory system. For the front end, we will use WeChat Mini Programs for development, and for the server, we will choose the open-source IoT platform – Wumei Smart. After completing this series of courses, I believe everyone … Read more
Dedicated to the research and development of digital twin technology Benefiting humanity through solutions and engineering applications Source: Digital Enterprises Author: Peng Yu Abstract The success of smart manufacturing and industrial digital transformation plans requires consideration of many factors. The most critical is to solve the acquisition of the correct data, convert it, and transmit … Read more
Introduction to IoT Development Key Technologies and System Applications of IoT This section systematically introduces the concept of the Internet of Things (IoT), its three-layer architecture, enabling technologies, and typical applications. It first discusses the background, characteristics, architecture, standards, and industry chain of IoT; then it introduces sensing layer technologies, including EPC technology, RFID technology, … Read more
Steps This is the tool I use to view data in the EMQ server, MQTTX, which is quite handy. First, we need these libraries. It’s quite simple to download them, just search for installation on Baidu, and after installation, import them. Taking the topic “weight_pub” as an example, we first retrieve MQTT data. The function … Read more
Article Title: Integrity Monitoring of IoT Devices Based on MQTT Protocol Extension All Authors: Qi Bing, Qin Yu, Li Minhong, Xie Hong, Shang Ketong, Feng Wei, Li Wei First Affiliation: University of Chinese Academy of Sciences Publication Date: 2022, 31(11): 68–78 Abstract Summary With the rapid development of the Internet of Things (IoT), the number … Read more
27-year-old domineering CEO falls in love with 45-year-old cleaning lady? Domestic short dramas are crazy! The boss asked me to write something according to this style. Part One: The female CEO falls in love with me, who has no money or house and spends all day typing. “I want to take everything that doesn’t belong … Read more
Introduction Here we will do two things: 1) Compile the C version libraries of two open-source projects, paho.mqtt and mosquitto (the mosquitto library will not be used) 2) Compile the library that depends on paho.mqtt and write examples + mosquitto server. Host Platform: Ubuntu 16.04 ARM Platform: s5p6818 SSL: openssl-1.0.2t MQTT Client: paho.mqtt.c Now we … Read more
This article is an excellent piece from the KX Forum Author ID on KX Forum: xiaoduoduo himqtt is the first complete source high-performance MQTT IoT firewall – MQTT Application FireWall, written in C language, using epoll mode to support hundreds of thousands of high concurrent connections for IoT, and is compatible with some ModSecurity rules. … Read more
Let’s look at this scenario: You have a temperature sensor that publishes the current temperature to a Topic every three hours. So the question arises, if a new subscriber subscribes to this topic right after it has published the current temperature, when will this subscriber receive the temperature message? That’s right, it has to wait … Read more
In recent days, I have been preparing for the follow-up IoT STM32 development and practical demonstrations, as well as writing mini-programs, so I haven’t had time to update the articles on my public account. Actually, I originally planned to wrap up the series of articles about the IoT platform with the last one. However, a … Read more