I am a MCU programmer, and I have never used SIM cards before. Now I want to make a stk menu on a 51 smart card called CIU5180, but I don't know where to start. I read information on eeworld for a day...
[i=s] This post was last edited by jameswangsynnex on 2015-3-3 20:03 [/i] Harbin Institute of Technology tutorial ppt directory digital mobile phone principle block diagram mobile phone power supply s...
Combining the low power consumption function of RL78/G14 microcontroller, a design scheme for a temperature sensing cup that does not require electricity is proposed. This scheme is innovative and pra...
Now more and more circuit boards use surface mount components. Compared with traditional packaging, it can reduce the area of the circuit board, is easy to process in large quantities, and has a high ...
Can I connect the serial ports of two microcontrollers directly to communicate? I am using MSP430, which has a serial port module. I directly connected the serial ports of the two microcontrollers and...
On August 25th, SK Hynix announced that it has completed development and entered mass production of its 321-layer, 2Tb QLC NAND flash memory product. This achievement marks the world's first applic...[Details]
Permanent magnets are essential components in a wide range of household and industrial devices. They are particularly crucial in the renewable energy sector, including electric vehicle motors. Curr...[Details]
A multilevel inverter converts a DC signal into a multilevel staircase waveform. Instead of a straight positive-negative output waveform, the output waveform of a multilevel inverter alternates in ...[Details]
A pure sine wave inverter has a good output waveform with very low distortion, and its output waveform is essentially the same as the AC waveform of the mains power grid. In fact, the AC power prov...[Details]
MQTT Ethernet I/O modules primarily collect I/O port information and transmit data over the network. In addition to being a TCP server, Ethernet I/O modules can also function as TCP clients. Furthe...[Details]
The driving mode is not unfamiliar to vehicles. According to the driving mode of the vehicle, there are front-wheel drive, rear-wheel drive and even four-wheel drive. Four-wheel drive is a major se...[Details]
At present, the most troubling thing about pure electric vehicles as new energy sources is not only the range anxiety, but also the disadvantage of long charging time. At present, ternary lithium b...[Details]
Servo motors, also known as actuator motors, serve as actuators in automatic control systems, converting received electrical signals into angular displacement or angular velocity output on the moto...[Details]
The power battery is a crucial component for vehicles, determining its lifespan and range. According to national regulations, when the capacity of an electric vehicle's power battery drops below 80...[Details]
The field of AI is constantly evolving. We are witnessing a profound shift from the era of "generative AI" to the era of "agent AI." This transformation has the potential to reshape industries an...[Details]
introduction
By the end of 2014, people aged 60 and above in China accounted for 15.5% of the total population, reaching 212 million; those aged 65 and above accounted for 10.1% of the total, ...[Details]
Recently, Shenzhen Ruixin Intelligent Medical Technology Co., Ltd. (hereinafter referred to as Ruixin Medical) released a fully automatic AI vascular interventional surgical robot, marking the begi...[Details]
As a low-voltage system of pure electric vehicles, the main function of the small battery is to charge some auxiliary equipment of the vehicle. At the same time, it is also necessary to provide cor...[Details]
How do the maps used by self-driving cars differ from the maps we use daily, such as those from AutoNavi and Baidu? AutoNavi and Baidu create maps for humans, while high-precision map companies cre...[Details]
On August 18, Tencent Holdings released its second-quarter 2025 results last week, with revenue of 184.504 billion yuan, a year-on-year increase of 15% and a month-on-month increase of 2%; profit a...[Details]
Embedded System
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