[i=s]This post was last edited by ylyfxzsx on 2016-12-17 12:31[/i] Brand new lithium battery booster board, mobile power bank board, 4.2V to 5V - 2A high current, 10 pieces for each person, the system...
[i=s] This post was last edited by Ben who hates bitter coffee on 2015-3-23 15:15 [/i] The function of this program is to input a voltage value from an AD port, and then output it from the serial port...
I used Didi to carpool on the weekend and met a woman who drove an electric car. She brainwashed me all the way about how good electric cars are. The most attractive thing is that the winning rate of ...
I want to make an STM32 circuit board, and I found that there are many 104 decoupling capacitors on the reference circuit diagram. How many capacitors should I choose? When laying out the circuit boar...
Now I can use 1602 to display the frequency value generated by the 555 timer, but I want to use 1602 to display the capacitance value to be measured. The formula is known, and the parameters of each c...
1. The resistor annotation in the circuit schematic is: 0603-10K/J. What does it mean? I know 0603 is a package. . . What does 10K/J mean?
2 When looking at a circuit schematic, how do you know whethe...
1. Introduction
RFID (radio frequency identification) is a non-contact automatic identification technology that emerged in the 1990s. It uses the characteristics of radio frequency signal prop...[Details]
Sailing is gaining more and more attention. How to use modern technology to assist training and improve competition results is particularly important. Considering the real-time data collection in t...[Details]
Today, with the increasing integration of functions, mobile phones can also be used as portable media players (PMP), digital cameras, handheld computers (PDAs), and even global positioning systems ...[Details]
introduction
Throughout the history of automotive lighting, power has always played an important role. Initially, cars only needed headlights to see the road in the dark. Later, other light so...[Details]
In recent years, the market for mobile/portable devices such as smartphones and laptops has continued to grow rapidly. While these products continue to integrate more new features to enhance the ...[Details]
1. Introduction
Light control circuit plays a vital role in urban street lamps or corridor lighting. With light control circuit, the lights can be automatically turned on and off according to ...[Details]
In recent years, lighting has become an important area that countries around the world are targeting to promote energy conservation and environmental protection. According to statistics, about 20% ...[Details]
Electronic systems are located at different points on the automotive power bus and therefore often need to operate under very stringent power requirements. These include load dump, cold crank, very lo...[Details]
Since the No. 4 blast furnace of Handan Iron and Steel was put into operation in 1993, its external equipment has been seriously aged, and the original PLC control system TDC3000 of the hot blast furn...[Details]
1. Introduction
Testing the temperature of steel billets before rolling is an important measure to ensure the quality of steel. Traditional manual testing is difficult to ensure product qu...[Details]
The automotive lighting and signal control system is responsible for controlling the vehicle's lighting, signal lights, electric horns, reversing and brake buzzers. Traditional automotive lighting...[Details]
The typical fault troubleshooting listed below is for reference of maintenance personnel.
When the computer is turned on, the indicator light is off and there is no screen display
Mainte...[Details]
I've been studying dot matrix recently. It looks simple, but it takes a while to master it completely! The 8*8 dot matrix hardware circuit I'm making now is like this. The row is driven by 74HC138 + t...[Details]
Abstract: The output of high-range acceleration sensor is less than 10 mV under the excitation of small signal. The noise of traditional test system may cover such small voltage signal, so that hig...[Details]
The TPS92210 is a single-stage LED lighting pulse width modulation (PWM) controller. The TRIAC dimmable solution not only regulates the LED current, but also achieves a power factor close to 1. The...[Details]