Shenzhen Changjiang Connector Co., Ltd. is a world-leading professional connector manufacturer with 20 years of experience. Its products mainly include wire-to-board connectors, board-to-board connectors, wire-to-wire connectors, wire harness processing and connector design, mold development and manufacturing. It is compatible with international brand connectors from Europe, the United States, Japan, South Korea and other countries.
Last time I used I2C to read the CH450 key code. In fact, CH450 provides an interrupt line. When a valid key is pressed, there will be a low-level pulse to notify the controller that I have the produc...
[i=s]This post was last edited by hehung on 2022-1-18 21:45[/i]As an open source embedded real-time operating system, FreeRTOS is widely used in the embedded industry. It is also necessary to integrat...
The Double 11 Shopping Festival is coming soon. At the request of relevant departments, I would like to share three short videos on how to prevent telecommunication fraud. I hope that the cases in the...
Qorvo recently announced its second quarter financial results for fiscal year 2021 ending October 3, 2020, with revenue of $1.06 billion, a 34.6% increase from the previous quarter and a 31.4% increas...
I spent some time playing around with ADS and wrote down some tips to help RFIC designer novices spend less time on it. 1. Installation. ADS2001 can only be installed under WIN2K (I haven't tried 98 a...
Powered by 18650, 3V~4.2V, it needs to be stabilized at 3.3V. However, when not in use, the microcontroller is always in a low-power state of 1uA current. However, the voltage regulator chip 1117 seem...
Not long ago, JD.com's driverless car received countless applause for delivering express parcels to hospitals on the streets of Wuhan. This contactless, smart and convenient driverless car has been o...[Details]
For non-production departments such as quality control, we cannot develop a separate set of test equipment for one product, but must be able to complete the testing of most automotive electronic modu...[Details]
In recent years, 3D printing technology has gradually become a hot topic in the fields of advanced equipment manufacturing, structural design and new materials. Developed countries such as Europe and...[Details]
When making audio equipment, audiophiles should not ignore the impact of the power supply internal resistance. If the internal resistance is too high, once the volume is turned up, the power supply vo...[Details]
1. Prepare a STC89C52 minimum system board 2. Burn the code (burn the code first and then connect the wires to prevent the code from being unable to be downloaded after connecting the wires) 3. ...[Details]
Abstract: The composition principle of voltage and frequency constant (CVCF) power supply is systematically introduced, the factors affecting the frequency stability, phase stability and amplitude ...[Details]
According to GSMArena, after Google pushed the December update, many Pixel 6 users reported that a new bug had appeared, the signal was often lost, and calls and data connections were affected. This ...[Details]
Diode selection criteria in circuit design
1. Selection based on circuit function
The high-frequency detection circuit should use germanium detection diodes, which are characterized by high wo...[Details]
MMU is the abbreviation of Memory Management Unit. Its Chinese name is Memory Management Unit. MMU is managed by the cp15 coprocessor in the ARM chip. Its function is to map virtual memory to physi...[Details]
As the launch date of Wenjie M9 approaches, more and more information has been exposed. Recently, people close to the supply chain revealed that innovative lithium battery material composite current...[Details]
The rapid development of intelligence and networking in recent years has pushed cars to gradually evolve into the "third space" of people's lives, and the cockpit has been redefined accordingly. At p...[Details]
At present, most domestic glass manufacturers use traditional manual measurement of glass thickness. It is difficult to achieve high precision and real-time monitoring for some high-demand glass produ...[Details]
1. What is MCU? Mcu is actually a single-chip microcomputer, which is the abbreviation of English Microcontroller Unit, and the Chinese name is microcontroller. At this time, many may have to ask aga...[Details]
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