"Doctor, doctor, am I deaf?"Doctor Guan had just finished examining a worker when a sunny and handsome young man rushed into the occupational health examination room with a hearing test form. Before D...
Schematic input seems to be an easy job, but it is the foundation of the entire electronic design. Any simple mistake will cause rework and project delays for the entire design. Common errors include ...
CC2541 has four oscillators, namely:32MHz external crystal
16MHz internal RC oscillator
32kHz external crystal
32kHz internal RC oscillatorFrom this we can see that CC2541 has its own oscillator, that...
Serial communication is a method of data transmission. This method is simple to operate, has few connections, and has a long transmission distance. Therefore, it has been widely used in information tr...
The LEDs in the figure emit light in intensity proportional to the load current, and the circuit is designed to provide a very compact circuit to replace the meter on the 12V power line of some ast...[Details]
2020 is destined to be an extraordinary year. On May 15, after Huawei encountered the strongest ban from the United States, the global semiconductor market can be described as "changing rapidly", and...[Details]
In-vehicle car safety systems prevent car accidents by detecting the presence of adjacent vehicles in the driver's blind spot and alerting the driver of a possible accident. The driver can use this...[Details]
1 Hardware Design
The core CPU uses Samsung's S3C44B0. S3C44B0 uses the ARM7TDMI core, which greatly reduces the configuration of components other than the processor in the system circuit by p...[Details]
TDA1517ATW is an 8W BTL or 2 × 4 W SE audio power amplifier from NXP. It integrates a class AB output amplifier in the HTSSOP20 package and can be used as a mono bridge-tied load (BTL) or stereo singl...[Details]
The fault detection test was conducted using two instruments, FLUKF1550 insulation resistance tester and DMH2550 insulation resistance tester, for comparison. The test time was 15s/1min/10min respect...[Details]
With the continuous evolution of automotive electronic architecture, the demand for Ethernet switches has skyrocketed. Mid- and low-end models require at least one Ethernet switch chip , mid-to-hig...[Details]
LED dot matrix screen has strong luminous brightness and good indication effect. It can produce moving luminous pictures and texts, which are more likely to attract people's attention. It has a large...[Details]
Last November, Apple officially released the M1 version of MacBook and plans to transition its Mac product line to self-developed ARM chips by 2022. Previously, we wrote an article about the new iM...[Details]
Reducing product development cycles has long been a major goal for R&D organizations. One way to reduce development time is to conduct design and testing work simultaneously—often following a V-shap...[Details]
Smart speaker users are increasingly turning to display-based devices or smart displays, according to a new research report from Strategy Analytics’ Smart Speaker and Display service. In Q3 2020, sma...[Details]
1. Driver installation After unpacking, I was ready to try it out. My computer was installed with WIN7 system. I followed the instructions of the LOTO driver installation guide and installed it succe...[Details]
In the more than two years since the outbreak of the epidemic, everyone's lifestyle has changed to varying degrees. Face-to-face communication has become rare, and offline team collaboration has beco...[Details]
Nearly five months after Google announced it was letting G Suite legacy free edition users start paying for their accounts, it appears it finally has a path most people will be happy with. Acco...[Details]
Samsung Electronics released a report revealing that its sales of ultra-large TVs have seen significant growth. In the first three quarters of this year, sales of TVs 80 inches and above climbed 15...[Details]