“For the Internet of Things, the most important aspect is communication with devices. Currently, the common communication protocols in IoT include: MQTT, CoAP, HTTP, XMPP, SoAP“ 01 — MQTT MQTT (Message Queuing Telemetry Transport) was originally developed by IBM as an instant messaging protocol. The MQTT protocol is designed for communication between remote sensors and … Read more
1. HTTP—Implementation of RESTful Architecture When it comes to HTTP, I believe everyone is familiar with it. HTTP stands for Hyper Text Transfer Protocol. When we normally visit a website http://www.baidu.com/index.html, we are actually using the HTTP protocol to retrieve (GET) the content of the file located at www.baidu.com/index.html on the internet, which is then … Read more
Author: HFK_Frank Original link: https://blog.csdn.net/acongge2010/article/details/79142380 MQTT Protocol MQTT (Message Queuing Telemetry Transport) was originally developed by IBM as an instant messaging protocol. The MQTT protocol is designed for communication between remote sensors and control devices with limited computing power operating in low bandwidth and unreliable networks. The advantage of the MQTT protocol is that it … Read more
Labs Introduction As one of the mainstream protocols in the Internet of Things (IoT) world, the CoAP protocol enables data exchange and network access for low-power constrained devices. The IETF has detailed its definition in RFC7252. This article introduces the dual-layer model and transmission characteristics of the CoAP protocol in the context of its application … Read more
Source: Guangdong IoT Open Laboratory Author: Laboratory Administrator The American Computer Industry Association predicts that by 2020, the number of connected devices worldwide will reach 50.1 billion. With the development of IoT, there has been real-time and effective connectivity between devices through the internet. To ensure smooth communication between devices, a specific
Recently at Exadel, we encountered an interesting challenge for IoT developers. As IoT applications gain so much momentum, there are more and more options on how to develop them. For device communication, two specialized competing protocols stand out: Message Queue Telemetry Transport (MQTT) and Constrained Application Protocol (CoAP). Both are designed to be lightweight and … Read more
Python plays an important role in IoT projects, as it can be used to control devices, collect data, analyze data, and interact with cloud platforms. Today, we will discuss how to use Python for device communication and data parsing, which are essential skills for IoT development! Think about your smart home devices, such as temperature … Read more
[Image] Get more IIoT insights by clicking the blue text to follow us [Image][Image] Hongke IIoT teaches you in simple steps how to use the industrial Raspberry Pi – to upload CPU temperature values to the cloud platform via HTTP protocol.Introduction HTTP is the English abbreviation for Hypertext Transfer Protocol, an application protocol based on … Read more
Congratulations! The new board has finally arrived, without further ado, let’s get started. The main function of the ESP32 is WIFI. With WIFI, it can directly connect to the home WIFI router and access the internet. At this point, it acts like a small computer or smartphone, making it very convenient to connect to the … Read more