[font=微软雅黑][size=4]{:1_102:}Time flies so fast, tomorrow is the May Day holiday~~ Are you guys not in the mood to fight today, just thinking about how to spend your time tomorrow? [/size][/font] [font...
Preface
See https://en.eeworld.com/bbs/thread-1219964-1-1.html to build the Qt development environment
This time, the execution time of different control operations tested by Qt was used to measure th...
It's a very good drama "Ever Night". After watching the first part, I thought it was quite good and was looking forward to watching the second part. However, a lot of actors were replaced all of a sud...
The customer reported that after the power supply output terminal was connected to the load, the output current reached 0.44A, and the output terminal was interrupted. The circuit protected itself. Af...
PWM signal is a digital signal with a fixed period and variable duty cycle.If the counter of Timer_A works in up-counting mode, the output adopts output mode 7 (reset/set mode)Use register TAxCCR0 to ...
At present, the wave of autonomous driving is sweeping the world, and major car companies are actively developing autonomous driving functions for their cars, but the directions they adopt are differ...[Details]
The installation of SMT small electronic products is an important project of the "Electronic Product Technology Training" course in the applied electronic technology major of higher vocational scho...[Details]
Recently, Ruili Scientific Instruments (Shanghai) Co., Ltd. (hereinafter referred to as "Rui Li") announced that it has obtained more than 120 million yuan in financing, with investors including Pudo...[Details]
Comparison table of commonly used Chinese and English abbreviations in circuit diagrams
a analog
ab address bus
accessorier accessories
adc analog to digital conversion
...[Details]
Comparison between MCU and PLC
To understand the similarities and differences between MCU and PLC, we must first clarify what is MCU and what is PLC. In this regard, it may be helpful for us to bri...[Details]
Apple has lost another round in its decade-long legal battle with VirnetX Holding, which was seeking hundreds of millions of dollars in royalties over patents used by Apple in virtual private network...[Details]
Noise temperature is not a must-measure indicator for every antenna, but for large-size antennas such as satellite communication ground station receiving antennas, the noise temperature is particular...[Details]
The U.S. government's efforts to exclude Chinese companies from its communications networks continue, Light Reading reported. This week, Pacific Networks and its subsidiary ComNet said they hope th...[Details]
After the vehicle stops, the coolant automatically cools and contracts, and the previously discharged coolant is sucked back into the radiator, thereby keeping the coolant in the radiator at a suit...[Details]
3. Active probe
Let's first look at the impact of using a 600MHz passive probe and a 1.5GHz active probe to test a 1ns rise time step signal. Use a pulse generator to generate a 1ns step signal. Aft...[Details]
Abstract: A high-precision self-excited multi-channel output regulated switching power supply is proposed. Compared with the previous multi-channel output switching power supply, it uses very few comp...[Details]
This article analyzes the common problems in the electromagnetic compatibility testing of mobile phones, including electrostatic discharge immunity test, electrical fast transient pulse group immunity...[Details]
First put the circuit diagram, pay attention to the selection of capacitors on both sides of the crystal oscillator, and pay attention to the resistance value between the LED and the voltage. The p...[Details]
This article uses the clock chip DS1302 as an example to analyze the timing diagram and write the code. DS1302 uses the SPI three-wire interface to communicate synchronously with the microcontrol...[Details]
★ Motorola T2688 keyboard unlock
T2688 has the function of unlocking through the keyboard, just enter: 19980722, but it only supports unlocking the current card and cannot achieve a complete reset ...[Details]