The retransmission mechanisms of BLE and WiFi are both based on ARQ (Automatic Repeat reQuest), which uses ACK to confirm errors or lost packets. However, there are some differences in their mechanisms. Below, we will conduct a simple comparative analysis. BLE Retransmission Mechanism The retransmission in BLE typically occurs at the link layer and is … Read more
The following provides detailed topology diagrams of various networking solutions for reference. For general home use, there is no absolute best or worst option; the key is to choose based on the size of your rooms and the penetration of the WiFi signal. In addition to self-configuration, if you want to simplify things, you can … Read more
*Disclaimer:This article is for technical discussion and sharing only, and is strictly prohibited for illegal purposes. As enterprise security devices become more prevalent and border security measures improve, phishing attacks have gradually become a primary method in red-blue team exercises. With the updates to email server WAFs and the increasing security awareness among enterprise personnel, … Read more
[Image] Official Account: Network Technology Alliance Recently, a friend who is preparing for renovation asked me: “I want to ensure full coverage of 5G WiFi in my home, including the bathroom. Should I choose a Mesh router or AP panels?” In fact, this question is one that almost everyone preparing to renovate or upgrade their … Read more
Source | Embedded Intelligence Bureau Recently, WiFi was used in a project, but at the beginning of the debugging process, several concepts were not particularly clear. Therefore, I have summarized this for easier development in the future. The Internet of Things (IoT) is currently quite popular, and various devices need to be connected to the … Read more
01 Command Description AT: Test AT startup. AT+RST: Restart the module. ATE: Enable or disable AT echo function. AT+CWMODE: Query/set Wi-Fi mode (Station/SoftAP/Station+SoftAP). AT+CWJAP: Connect to the specified WiFi network. AT+MQTTUSERCFG: Set MQTT user attributes. AT+MQTTLONGCLIENTID: Set MQTT client ID. AT+MQTTLONGUSERNAME: Set MQTT login username. AT+MQTTLONGPASSWORD: Set MQTT login password. AT+MQTTCONNCFG: Set MQTT connection attributes. … Read more
1. Introduction Recently, a colleague shared a highly valuable technical article titled “Mastering WiFi with SPI: A Deep Dive into the RT-Thread ESP-Hosted Driver | Technical Collection“. Although its technical stack design is refreshing (providing a complete analysis from low-level protocols to high-level drivers), it has received little attention due to the fast-paced content consumption … Read more
链接：https://blog.csdn.net/Lemon__ing/article/details/147575650?spm=1001.2014.3001.5502 ☞The course is completely sold out!☜ Currently, many embedded devices need to connect to the network through networking to achieve remote control, data transmission, and other functions. Next, we will delve into the relevant knowledge of embedded device networking. 1. Analysis of Popular Networking Solutions There are various networking methods, commonly including: 1. SmartConfig … Read more
HLK-B35S is a cost-effective wireless communication module launched by Hailin Technology, integrating BLE 5.2 Bluetooth and Wi-Fi 802.11b/g/n functionalities, focusing on ultra-low power consumption and compact design, suitable for IoT terminal devices, smart homes, wearable devices, and other scenarios sensitive to power consumption and size. 1 Product Introduction HLK-B35S The core competitiveness of HLK-B35S lies … Read more
