Everyone has probably experienced that feeling when the WiFi in their home seems to be slowing down, wondering, “Is someone using my WiFi?” Sometimes, when we go out, we also want to try to use someone else’s WiFi. The premise of “borrowing WiFi” is to crack the other party’s “wireless password”. So, how secure is … 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
WiFi is a term that most people are now familiar with. Wherever you go, you can find many WiFi hotspots just by searching on your phone, although most of them require a password to connect. Nevertheless, let’s clarify what WiFi is. Originally, WiFi was an abbreviation for wireless fidelity. In the realm of wireless local … Read more
Since the application of IoT technology, the smart home industry has been developing rapidly, evolving from remote control to mobile remote control, and the network transmission signal has jumped from wired to wireless, reducing costs and promoting low-carbon energy saving. Among various wireless connection technologies, WiFi/BT/ZigBee are the most widely used and popular, each with … Read more
Introduction. Wireless communication modules are widely used in vehicle monitoring, remote control, telemetry, small wireless networks, wireless metering, access control systems, community paging, identity recognition, wireless remote control systems, biological signal acquisition, hydrometeorological monitoring, robot control, digital audio, and digital image transmission. What is a Wireless Communication Module? A wireless communication module is a module … Read more
This article is an abstract of a paper originally published in “Broadcast and Television Technology”, issue 10 of 2023. You can read the full text online at lieku.cn. Home networks are an important part of creating high-quality broadband services. By establishing a home networking management protocol, a family networking technical service system with broadcast and … Read more
Click the blue text to follow us In commercial places like shops and offices with high foot traffic and many obstructions, the network signal fluctuates. What should we do? With a plethora of network and surveillance related devices, maintenance is difficult, wiring is troublesome, and costs are high. What should we do? For cameras that … Read more
MicroPython is widely used on many embedded platforms, including STM32F40x, ESP32, ESP8266, PicoPy, and many other MCUs. Developing embedded systems based on MicroPython allows developers to adhere to the same syntax and interfaces without worrying about specific MCU models and functionalities, significantly improving system development efficiency. Since the introduction of various microcontroller platforms in the … Read more
What? A calculator can run ChatGPT now? There is a video as proof; the program not only answered the author’s questions but also gave the classic ChatGPT response—42—when asked about “the meaning of life”. Moreover, it looks just like an ordinary calculator; the secret lies within the machine. Of course, the difficulty is not small. … Read more
With the popularity of fingerprint recognition on smartphones, fingerprint recognition technology is being applied in more and more scenarios. In addition to mobile applications, it is also gradually popularized in embedded scenarios such as mobile payments, access control systems, and smart homes. In terms of system implementation, smartphones themselves have powerful computing capabilities and rich … Read more