Bluetooth LE is a Bluetooth protocol designed specifically for ultra-low power applications. In this article, we will explore how BLE has become an energy-efficient short-range wireless connection technology. Before diving into the details of BLE, let’s first understand what a communication protocol is. What Is a Communication Protocol? Over time, computing has evolved from standalone … Read more
Click the above Computer Enthusiasts to follow us As one of the oldest wireless transmission technologies, Bluetooth has now been upgraded to version 5.0. Most new smartphones and Bluetooth headphones have included Bluetooth 5.0 technology as a standard option. So, what changes have occurred with Bluetooth 5.0 compared to the more familiar Bluetooth 4.x? What … Read more
Traditional/Classic Bluetooth Module (Classic Bluetooth, abbreviated as BT) Bluetooth Low Energy (BLE) Classic Bluetooth has developed and improved based on earlier versions like Bluetooth 1.0, 1.2, 2.0+EDR, 2.1+EDR, and 3.0+EDR, while Bluetooth Low Energy was developed from Nokia’s Wibree standard, representing two completely different standards. Classic Bluetooth modules can be further divided into traditional Bluetooth … Read more
Background In school, I used Bluetooth technology to participate in competitions (and won awards); as Bluetooth is a common protocol in the Internet of Things, it is necessary to study it in depth. The subsequent articles will focus on BLE (v4.0). Introduction Bluetooth technology was originally created by the telecommunications giant Ericsson in 1994 as … Read more
Shengqi Huo 1, Qian Wang 1, Wei Shi 1, Lulu Peng 1, Yue Jiang 1, Mengying Zhu 1, Junyi Guo 1, Dewei Peng 1, Moran Wang 1, Lintong Men 1, Bingyu Huang 1, Jiagao Lv 1, Li Lin 12023 Jan 14;24(2):1667. doi: 10.3390/ijms24021667. Affiliationsexpand PMID: 36675183 PMCID: PMC9862315 DOI: 10.3390/ijms24021667 Research Background The acquisition, distribution, … Read more
This article is a featured article from the Kanxue ForumAuthor of Kanxue ForumID: Hu Yimi 1 Introduction In this article, we share some research content about the Loock Touch smart lock, which is produced by Yunding Technology. Yunding Technology is a company focused on the research and production of smart home security products, with two … Read more
1. Background Last time, the Bluetooth discussion was quite rushed. This time, I am determined to clarify the fundamental knowledge and applications of Bluetooth. 1.1 Reference Materials Overview of Bluetooth Version Development http://blog.sina.com.cn/s/blog_d2db96110102xnj6.html In-depth Understanding of Low Energy Bluetooth (BLE) Protocol Stack https://blog.csdn.net/shunfa888/article/details/80140475 BLE Protocol Series (1) Introduction to Bluetooth https://blog.csdn.net/zwc1725/article/details/80703326 2. Basic Knowledge of … Read more
Xiang’an Sun, Hongyi Zhu (Shanghai Broadband Technology and Application Engineering Research Center, Shanghai 200436) Abstract: Smart home devices are making home networks increasingly complex. This article starts from two aspects: the types of smart home network devices and their traffic characteristics. It selects some representative and easy-to-operate real terminal devices, builds a home network simulation … Read more
The previous section discussed the Start-Stop-Type frame structure protocol, which constructs the frame structure using frame headers, lengths, and checksums, enabling reliable and accurate transmission of packets based on the frame structure. Application Layer Packet Design Ideas Returning to the project itself, the packets within the frame structure are what the application ultimately needs to … Read more
(Star this for Selected Android Development) Source: Android Developer Community First, we need to clarify one point: the Bluetooth broadcast packet we obtain through the Android SDK is a 62-byte array that has been processed by the underlying SDK. How is this 62-byte array generated? To understand this, we first need to know what the … Read more