Zigbee Zigbee is based on the IEEE 802.15 standard, adding network security and framework protocols. It also has a network layer that provides reliable and secure transmission between devices. The transmission rate is around 250 kbps. Zigbee, as an open global standard, meets the unique requirements for low-cost or low-power wireless IoT networks. The frequency … Read more
With the rapid iteration of emerging applications such as the Internet of Things, artificial intelligence, and smart vehicles, the market has raised higher demands for data storage in terms of speed, power consumption, capacity, and reliability. Storage technology is continually facing new challenges. Among the current mainstream storage technologies, while DRAM is fast, it has … Read more
Click the top Computer Enthusiast to follow us Today a friend asked me why my newly bought phone shows “Wireless Local Area Network” while my friend’s phone shows Wi-Fi. Why are there so many names for the same thing? Many people believe that Wireless Local Area Network = Wi-Fi, but actually, they are not the … Read more
Last week, a friend in the low-voltage industry asked us on the WeChat public account of the low-voltage industry network, “What exactly does WiFi mean? I use it every day but don’t know its origin. As someone working in the low-voltage industry, he felt very insecure about this.” After using it for so many years, … Read more
Source: WeChat public account “Wireless Deep Sea” Wireless Router The wireless access function of a wireless router is what we previously referred to as a Wireless Local Area Network (WLAN). Currently, WLAN only has Wi-Fi as its mainstream technology, so we can consider the two as equivalent. Wi-Fi is technically certified and trademarked by the … Read more
Boundary Scan Technology can not only test the logical functions of chips or PCBs but also check for faults in the connections between IC (Integrated Circuit) and PCB (Printed Circuit Board). Therefore, it has become mainstream in the design for testability of digital systems. The IEEE established the relevant standard, IEEE 1149.1, in 1990, which … Read more
In 1896, Italian inventor Guglielmo Marconi achieved the first wireless communication in human history. From then on, humanity opened the door to the world of radio. Guglielmo Marconi (1874-1937) The radio telegraph at that time used a spark-gap transmitter, and the transmitted signal content was Morse code. This radio telegraph could not receive and send … Read more
In the late 19th century, humanity invented the wireless telegraph, thus beginning the exploration of the wireless world. The wireless telegraph machines of the time used a spark-gap transmitter, primarily to transmit Morse code. Early wireless telegraph machines, with the Morse code design in the lower left corner This telegraph machine could not receive and … Read more
Introduction to JTAG JTAG (Joint Test Action Group) is an international standard testing protocol (IEEE 1149.1 compliant), primarily used for internal testing of chips. Most advanced devices today support the JTAG protocol, such as DSPs and FPGAs. The standard JTAG interface consists of 4 lines: TMS, TCK, TDI, and TDO, which correspond to mode selection, … Read more