OTA upgrades are no longer a novelty; most IoT terminal devices now have this capability. I previously shared an article on the principles of OTA upgrades: Dry Goods | Principles of Embedded OTA Upgrade Implementation. Today, I will share the detailed process of OTA upgrades using the AT32 as an example. . Overview Over-the-Air Technology … Read more
RS-485, with its excellent ability to resist common mode noise, is suitable for long-distance signal transmission, especially widely used in industrial environments. This article introduces the working principle of RS-485 and the EMI risks it faces (electrostatic interference, electrical fast transient bursts, and surge voltage), and discusses several EMC solutions that help RS-485 cope with … Read more
RS-485 (RS232 to RS485) bus interface, as an electrical specification for multipoint and differential data transmission, has become one of the most widely used standard communication interfaces in the industry. The RS-485 standard specifies only the electrical characteristics of the interface and does not involve connectors, cables, or protocols, allowing users to establish their own … Read more
Recently, a certain domestic smartphone manufacturer sparked the “Flash Memory Gate Incident” after being exposed by netizens for “mixing flash memory” in the same phone. As of now, it seems there hasn’t been a proper resolution to this issue, but the situation of “mixing flash memory” is not a secret in the industry, after all, … Read more
This article introduces the correct connection method for RS-485 networks, including suggestions for twisted pair wiring and proper installation of termination resistors. It lists the receiver waveforms under correct and incorrect termination. Configurations from simple single transmitter/multiple receiver networks to multiple transceivers and multiple branch circuits are provided. This article can serve as a basic … Read more
RF (Radio Frequency) and Mixed Signal PCB Layout Guidelines RF (Radio Frequency) and Mixed Signal (Analog & Digital Mixed Signals) PCB design requires special attention to issues such as signal integrity, noise control, and electromagnetic interference (EMI). Their layout differs from ordinary digital PCB design because they involve high-speed signals, the coexistence of sensitive analog … Read more
2016-11-24 Introduction Developing mobile handheld devices with touch screen human-machine interfaces is a complex design challenge, especially for projected capacitive touch screen designs, which represent the mainstream technology for current multi-touch interfaces. Projected capacitive touch screens can accurately locate the position of a finger touching the screen by measuring the minute changes in capacitance to … Read more
Limited Time Download：Reply “Tutorial” to get the microcontroller eBook, reply “Simulation“ to get Proteus simulation materials， Baidu Pan group sharing link update time: 2017-09-02，if it is invalid, please leave a message at the end of the article, do not leave a message in the background，you can also search for more resources you want in the … Read more
Industrial software is the “brain” of modern industrial equipment and a powerful tool for the manufacturing industry to implement the industrial internet and transform into intelligent manufacturing.Written by | China Industrial NewsIndustrial software refers to software specifically designed for the industrial sector, including systems, applications, middleware, and embedded software. Industrial software is generally divided into … Read more
Industrial software refers to software specifically designed for the industrial sector, including systems, applications, middleware, and embedded software. Industrial software is generally divided into two types: embedded software and non-embedded software. Embedded software is integrated into controllers, communication devices, and sensors for data collection, control, and communication, while non-embedded software is installed on general-purpose computers … Read more