I have tried the 12864 serial interface program on the Internet for many times, and changed N programs, but it is useless. I think it is because my 12864 needs 5V power supply, so the recognition of h...
I would like to ask you masters, when a digital oscilloscope inputs two signals at the same time, one waveform is always stable while the other is unstable (keeps moving). How can I make this unstable...
Now I have 8 LEDs, controlled by 8 I/Os of 51 MCU. My boss asked me to flash 200 modes. If I write a function to implement each mode, I need 200 functions. My boss said 200 functions are too big. He w...
1 First, you need to be able to see real-time video on the web page. 2 You can record the video you see and save it in any format. mjpg-stream. I can play it to port 8080 without any jams. It takes up...
Recently, a Guangzhou netizen in Tianya Community "sold himself to find a job", claiming to be a fresh graduate who is still unemployed. He combined the current popular topics such as "being employed"...
I wrote a FIR filter program. The requirements are a sampling rate of about 200Hz, 16th order, and 17 taps. The calculated delay is 40 milliseconds. And the filter coefficients are calculated. Maybe t...
On August 23rd, Geely's subsidiary, Jiyao Tongxing, announced it has the industry's largest advanced production capacity for tandao
batteries
, with eight production bases across China. Jiy...[Details]
When you are happily watching NBA or football, your wife asks you to turn off the lights in the bedroom. Would you be depressed? Of course, unless you are not afraid of your wife.
Now you are ...[Details]
1. Fault phenomenon and cause analysis
1. During the operation of the equipment, the expansion sleeve is subjected to a large torque, and the mating surfaces of the shaft and the sleeve move...[Details]
In the field of communications power supplies, AC/DC rectifier power supplies are called primary power supplies or basic power supplies, while DC/DC converters are called secondary power supplies. ...[Details]
The fracture mechanism is stress concentration, which typically occurs at the capacitor lead pins or pad connection points, as shown in the figure. Under vibration, the capacitor lead pins and pad ...[Details]
01. Introduction
As in-vehicle networks migrate from the CAN
bus
to
Ethernet
, traditional millisecond-level synchronization accuracy can no longer meet the requirements of mul...[Details]
Batteries are a core component of new energy vehicles, accounting for over 40% of the total cost. This is also the area where automakers are most willing to tamper with costs. Since 2021, domestic ...[Details]
The Waveshare ESP32-P4-ETH is a compact ESP32-P4 development board with Ethernet and PoE support. It looks very similar to the Olimex ESP32-P4-DevKit, minus the pUEXT connector. However, we've also...[Details]
As the power density of modern electronic systems continues to increase, effective thermal management has become critical to ensuring system performance, reliability, and longevity—especially in hi...[Details]
For the average person, an electricity meter is a monthly bill. For beginners, it's a collection of components and parts. For experienced meter engineers, however, it's a complex and complex proces...[Details]
The transition to SDVs (software-defined vehicles) involves more than just replacing parts; rather, it involves the organic connection of various elements, from internal vehicle systems to ext...[Details]
01 Overview
The HJM315A/B is a domestically produced programmable three-phase motor driver specifically designed for small and medium-sized motor gyroscopes. It consists of an MCU, LDO, three-...[Details]
System Principle
According to the average imbalance rate of the branch three-phase phase line load and the average value of the branch phase line current, the adjustment of the phase line load...[Details]
introduction
Commercial air conditioner PCBs involve both high-voltage and low-voltage power. The power supply for commercial air conditioners often passes through the controller. This forces ...[Details]
August 19, 2025 – Mouser Electronics, a leading New Product Introduction (NPI) distributor offering an extensive portfolio of semiconductors and electronic components, announced that
it will be...[Details]
Microcontroller MCU
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