ActiveSync has always been working fine when connecting to the device via the USB interface, but today when I unplugged the USB cable and disconnected it, the machine crashed. After restarting, it sto...
The P0 pin of the at89c51 chip is used as the output of two four-bit BCD codes to the CD4511BCN, and then output to two 8-segment displays through the CD4511BCN, but there is always no response. Pleas...
What is the reason if the sensor head does not work? The working LED is on, but the sensor head does not work. Does anyone know what the reasons are? The program works well, but I just look for it fro...
Nokia, which has decided to cooperate with Microsoft to develop Windows Phone, has put the previously acquired Qt in a corner. According to foreign media reports, Nokia has decided to sell the QT comm...
Samsung adopts power management technology developed by ARM and National SemiconductorSamsung's highly integrated application processors with built-in advanced power controllers (APC) help extend batt...
[i=s]This post was last edited by 47857872 on 2018-6-1 00:10[/i] In the 1.9.4 version of the ESP32 mpy firmware, the ADC part may have some changes compared to the previous one, so I'll post it here. ...
The rapid development of the Internet has realized high-speed information transmission and resource sharing, greatly facilitating people's lives. Embedded systems are widely used in various electr...[Details]
Traditional broadcasting systems generally need to be operated manually at a fixed time, and can only realize one-way broadcasting with few functions. Traditional bell ringing equipment has a singl...[Details]
1. Circuit composition
The whole circuit consists of two parts:
1. Power saving control circuit
As shown in the figure below. Including delay circuit and drive circuit.
(1) Delay ci...[Details]
1. Introduction
With the growth of parking demand, the scale of parking lots is becoming larger and larger. A lot of research has been done on intelligent parking lots in China, but most of th...[Details]
1. Introduction
Since the 1980s, with the continuous development of automotive electronic technology, there are more and more electronic control units in automobiles, such as electronic fuel i...[Details]
Do you often have to add brake fluid to your car's brakes? The fact that you need to pump out the brake fluid to make sure there is no gas in the brake fluid line may not be done by the car owner h...[Details]
Converged processors meet scalability requirements
In current embedded system design, solutions based on MCU, DSP, FPGA and ASIC account for more than 90% of the market share. These solutions ...[Details]
Due to the significant increase in electronic devices in automotive and industrial applications, the automotive and industrial markets continue to play an important role in China's electronics in...[Details]
introduction
Solar cells and LED lighting are typical applications of new energy and energy-saving and efficient technologies. Solar LED lighting uses solar cells to convert solar energy...[Details]
For a long time, due to the limitation of hardware conditions, the display devices of traditional small handheld devices such as PDA are usually monochrome LCD, and the user interface is very simpl...[Details]
Images in science fiction movies often break through the limits of reality, such as in the movie "Minority Report." Tom Cruise uses a multi-touch screen to browse information. Capacitive sensing te...[Details]
Xiaomi, a well-known Internet phone in mainland China, won a million-unit order contract from China Unicom on November 20 last year, which made Xiaomi famous in mainland China. In April this year...[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]
0 Introduction
There are many types of sensors, and the working principles, measurement targets and measurement environments of different types of sensors vary greatly. The corresponding detection s...[Details]
Abstract: In order to realize wireless automatic alarm and monitoring of major safety places, based on the basic principle of pyroelectric infrared sensing, a detector for receiving infrared radia...[Details]
Embedded System
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