Today I spent 480 to buy the EasyARM2131 learning board at the Beijing office of zlg. 1. But when I came back, I found that there were no ads in the CD (all its routines are based on ADS). I am a novi...
Recruiting 2-3 software testers. Our department is the R&D department of a factory in Fuyong, Shenzhen (near the airport). We are mainly engaged in the R&D of GPS. Workplace: Shenzhen Nanshan District...
I have transplanted the lan91c111 for pxa255 wince4.2 driver to pxa270 wince5.0. Has any expert done it? What parts need to be modified? Please give me some advice. Thank you!...
My board uses 430 to control a 220v, 0.3A fan through a 5V electromagnetic relay. Every time the relay is disconnected, there is a lot of interference and the microcontroller crashes. I asked for advi...
These three things are defined in main.cpp: class FrameRateManager { enum FrameRateMonitorMessage { FRM_START = 0, FRM_STOP, FRM_GET_FRAMES_PER_SECOND }; Use as follows: //Register the message with th...
0. Introduction
In daily life, we often see some special-purpose vehicles. When these vehicles pass through intersections, they often obtain the right of way at intersections by temporarily op...[Details]
1. System Structure
This system is a simulation system of indoor air-conditioning temperature/humidity control system. The data acquisition and control center collects temperature/humidity...[Details]
introduction
At present, measuring instruments are developing towards networking, and each individual embedded instrument will become a node on the Internet. This system realizes the network...[Details]
Against the backdrop of global warming, energy conservation and emission reduction have become a global hotspot and focus, which has also sounded the clarion call for the take-off of the LED lighti...[Details]
LED is now known as the fourth generation of light sources. High-power LED has many advantages over traditional light sources in outdoor lighting.
1 LED lamps have high light efficiency
C...[Details]
This article focuses on closing the feedback loop of an isolated power supply using a TL431 shunt regulator. The article discusses a method to extend the bandwidth of the power supply control loop ...[Details]
1 Introduction
Washing machines are an indispensable household appliance in the home, and they are developing very fast. Fully automatic washing machines are favored by everyone because of their con...[Details]
For a long time, my country has implemented "community-style collective heating" for hot water heating, and settled accounts based on the heating area, regardless of whether the user uses heat. Thi...[Details]
Many industrial fields such as industrial automation, logistics, and smart grids require that machinery and products be safe and have passed functional safety certification. When developing machine...[Details]
In recent years, network technology has developed rapidly, especially the rapid development of peer-to-peer networks, which has become one of the focuses of the industry. Related applications based on...[Details]
Power socket boxes are installed in different locations in each room of the home for various electrical appliances. The nominal capacity is 10A and 16A, and the appearance is shown in Figure 1 (Fig...[Details]
Commonly used power management chips for portable products
●Low Dropout Regulators (LDO Linear Regulators)
LDO
VLDO;
●DC/DC Converters based on inductor energy...[Details]
Due to work needs, I need to implement square root operations on a single-chip microcomputer. Currently, most square root methods use Newton's
iteration method. After checking some information,...[Details]
Last week, Microsoft's Windows Phone 8 system was launched with great fanfare and attracted much attention from the industry. However, Nokia, the most staunch supporter of Microsoft's Windows Phone sy...[Details]
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