Recently, I have found that I like this place more and more. The administrator is good, the moderator is dedicated, and all the members are kind! You can also directly give suggestions to the forum. W...
{ ...... // Start the thread, start playing the sound, and set the thread priority to the highest, hoping that it will execute immediately HANDLE m_hThread = CreateThread(NULL, 0, TOPlaySoundThread, N...
Hello everyone, I have sorted out a lot of things that have been used in proofing and are redundant. There are many types of relays, various chips, combustible gas sensors, etc., but the quantity of e...
Recently I looked at the contents of the LPC1114 data registers. The data registers allow reading data from pins set as inputs and writing values to pins set as outputs. Each port data register occupi...
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]
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]
1 Introduction
Ultrasound refers to elastic vibration with a frequency higher than the audible frequency limit (i.e., in the frequency band above 20 kHz). The propagation process of this vib...[Details]
Leakage current is generated by parasitic resistance paths between the measurement circuit and a nearby voltage source. This current can significantly reduce the accuracy of low current measurement...[Details]
Various electronic and electromagnetic interference inside and outside the car often puts automotive electronic equipment in dangerous working conditions, degrading the performance of electronic eq...[Details]
This article introduces the advantages of outdoor full-color SMD display and the performance parameters of the dedicated outdoor full-color SMD used, which will help people understand and promote...[Details]
1. Introduction
Power flow calculation is the basis for studying steady-state problems of power systems. Since the application of computers to calculate power flow distribution in power sy...[Details]
0 Introduction
With the continuous progress of science and technology, industrial control systems are developing towards openness, digitization, intelligence, distribution and networking. Field...[Details]
The ISL97691 is Intersil's highly integrated 4 channel LED driver for single cell Li-Ion battery operated mobile displays requiring analog dimming, and for 3D mobile display applications. It drives fo...[Details]
1Select by use environment
The operating environment conditions mainly refer to temperature (maximum and minimum), humidity (generally refers to the maximum relative humidity at 40 degrees Cel...[Details]
1. Design Overview
This design uses the USB port as the power supply port, uses the DS18B20 temperature
sensor
to collect temperature information, uses the AT89C2051 single-chip mic...[Details]
Compared with other air conditioning systems, ground source heat pump systems have outstanding advantages. Since the temperature deep in the ground remains unchanged all year round, it is much higher ...[Details]