Past and Present RS-485, what does RS mean? It is an abbreviation for Recommended Standard, which means a recommended standard. 485 is the standard identification number, and there is no need to delve into why this identification number is set. RS-485 is also known as ANSI/TIA/EIA-485, these prefixes are abbreviations of standard associations’ names, for … Read more
The RS-485 bus is widely used in industrial environments, which may experience high levels of electrostatic or surge interference. Engineers typically use gas discharge tubes and TVS diodes to build protective circuits. However, these circuits have a high junction capacitance, which, if improperly applied, can affect communication. This article will introduce a low junction capacitance … Read more
Click the card above to follow for more information RS-485 is a physical layer bus design standard in industrial and instrumentation applications, and has become one of the most widely used standard communication interfaces in the industry.This communication interface allows for multipoint bidirectional communication over a simple pair of twisted wires, and its noise suppression … Read more
A previous article summarized the industrial HART bus, and today we will discuss the RS-485 bus. RS-485 is a widely used communication interface, and this article will cover the key points in detail, with a length of about 5000 words. The Past and Present RS-485, what does RS mean? It stands for Recommended Standard, which … Read more
The RS485 bus is widely used in various fields such as video surveillance, access control intercoms, and building alarms due to its simple wiring and reliable stability. However, many inaccurate concepts during the wiring process can lead to various issues. Here are some summarized misconceptions. 1. The 485 signal line can be run alongside high-voltage … 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
Bluetooth has always been a standard feature for smart devices, whether it be smartphones, laptops, or tablets. With the development of mobile internet, a large number of smart wearable devices have emerged, and the development of these applications requires not only mobile software support but also support from wireless sensing technology. Bluetooth remains the preferred … Read more
Accessing the car via smartphone: Hofa’s mobile car key Phone as a Key combines three advanced data transmission technologies to provide a comfortable and secure hands-free car access experience. The combination of Ultra Wideband (UWB) and Bluetooth Low Energy (BLE) offers high-precision positioning, making relay attacks impossible. Furthermore, Hofa’s system, compliant with the AUTOSAR standard, … Read more
Hello everyone, I am an experienced Java tutorial author. Today we will learn how to use Bluetooth Low Energy (BLE) for Android development. BLE is an emerging Bluetooth technology that helps us develop Bluetooth applications with lower power consumption and more stable connections. BLE is a new low-power Bluetooth technology introduced with Bluetooth 4.0. Compared … Read more
In recent years, IoT technology has gradually become a focal point of attention. With the development of mobile communication technology, many “long-range” IoT technologies have emerged based on traditional “short-range” IoT technologies, bringing a wave of innovation to the industry. Among these emerging IoT technologies, the most frequently discussed are NB-IoT and LoRa. As the … Read more