I saw the email and was on a business trip in Beijing. I contacted okhxyyo and went directly to EEWORLD to pick it up. Am I the fastest to get it? The editors were very enthusiastic and even invited m...
I saw the nRF24L01 driver in the micropython source code a long time ago, but I never tested it. Yesterday I soldered two modules, modified the GPIO definition, tested the basic communication function...
A 100W wireless power transmission prototype was made before. The primary resonant side adopted full-bridge switch phase shift control. The schematic diagram is shown in the figure.The actual measured...
Receive "SHT31 Smart Gadget" and start testing immediately
The test board I received is a bit like chewing gum. But it is a bit bigger.
After opening the package, you can see that there is a "plastic ...
IoT security himqtt firewall data structure ringbuffer ring bufferWith the popularity of 5G , IoT security is particularly important. himqtt is the first high-performance MQTT IoT firewall with comple...
On October 10, 2023, WPG Holdings, a leading international semiconductor component distributor dedicated to the Asia-Pacific market,
announced that its subsidiary WPI has launched UWB 3D positi...[Details]
11. What should I do if the servo motor shakes?
The servo motor is from Zhuhai Haikong. When the upper connecting rod is not installed, everything looks normal. Once the connecting rod is inst...[Details]
As people's living standards continue to improve, they pay more and more attention to the safety of their personal and property. The security field continues to expand and the industry develops r...[Details]
Chip Design
From the evolution of chips, it is found that major LED manufacturers have continuously improved the upstream epitaxial technology, such as using different electrode designs to con...[Details]
Our flight had just begun to descend when a gentleman sitting next to me turned to talk to me about engineering—he had seen me reading an engineering journal. The gentleman next to me said that he wa...[Details]
Note: There is generally no MMU in a single-chip microcomputer. At most, the cortex-3 can only implement the MPU function, so it cannot convert the virtual address space. So there is only one process....[Details]
When applying PLC high-speed counters, we often encounter the following series of problems: the pulse level of the counter does not match the input counting pulse signal. For example, the data outp...[Details]
This article gives the design of a high-precision automatic resistance tester with STC89C54RD as the control core. The system range is from 10Ω to 10MΩ, and has the functions of automatic range switc...[Details]
Avita completed its Series B financing in August 2023. After the capital increase, Changan Automobile will still be Avita's largest shareholder, with a shareholding ratio of 40.99%; CATL holds the se...[Details]
The RS-485 standard is widely used in industrial control, power communication, intelligent instruments and other fields. However, in field environments such as industrial control, the situation is ...[Details]
1 Introduction
Signal conditioning circuit is an indispensable part of data acquisition device. With the continuous development of data acquisition technology, the requirements for signal ...[Details]
Float flowmeter is the most popular type of flowmeter products. For example, glass rotor flowmeter, plastic tube float flowmeter, traditional metal tube float flowmeter (Chengfeng Instrument's third-...[Details]
This generation of RTX 40 series graphics cards uses the new Ada lovelace architecture GPU core, and the process has been upgraded to TSMC's 4N 5nm process. Compared with AMD Radeon graphics cards of...[Details]
The intelligent soft start cabinet is a device used for starting and controlling motors. It controls the starting current of the motor, reduces the impact during starting, and prolongs the service ...[Details]
MicroPython Open Source section
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