In the RFID system, the working distance between the reader and the electronic tag is an important indicator of RFID application.
This distance is closely related to the cooperation between the RFID t...
I have a design plan: Regarding cutting off the standby power, the US Energy Star is 3 watts, and Europe’s current standby is 1 watt.
My technology is to completely cut off the power supply, and "cut ...
Modern life is changing with each passing day, and people cannot live without electricity. In the process of using electricity, there are problems with electricity safety. In electrical equipment, suc...
Using the serial port debugging tool, the PC communicates with the 430 serial port. The serial port debugging tool can receive the data sent by the microcontroller, but the microcontroller cannot rece...
I plan to use jrtplib3.7 on ARM9 and Linux2.4 as an embedded video service. I can use arm-linux-cross-compile jrtplib without any problems. I wrote the programs for the receiver and the transmitter, c...
[color=#000][backcolor=rgb(232, 232, 232)][size=15px] The problem is this, taking channel 1 of timer 1 as an example, first consider complementary PWM without dead zone, assuming that PWM mode 1 is us...
introduction
my country has a vast territory and a large population. The scale of housing construction is huge, and the amount of residential construction is large and wide. It is still on 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]
Analog engineers have traditionally struggled with complexity when designing power supplies that required multiple outputs, dynamic load sharing, hot-swap, or extensive fault-handling capabilities....[Details]
The reason for the light decay of white LEDs: the decline of phosphor performance
So far, the rapid decline of the luminous performance of white light LEDs, especially low-power white light LE...[Details]
introduction
The emergence of high-performance, low-power embedded CPUs and high-reliability network operating systems has made it possible to implement applications with large amounts of comp...[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]
1 Introduction
Water resources are the basic conditions for human survival and the lifeline of economic development. The reality shows that due to the global shortage of water resources and th...[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]
At very low temperatures, certain metals and alloys lose their resistance to electric
current
and become
superconductors
. Two parameters that are often measured are the transition ...[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]
Only a small number of LED manufacturers can produce high-quality LEDs. For applications that are only used for simple indication, low-quality LEDs are sufficient. However, high-quality LEDs must...[Details]
1. Overview
At present, an information revolution is in the ascendant around the world, led by microelectronics, computers and communication technologies, and centered on information technolog...[Details]
1 Introduction
With the improvement of people's quality of life, lamps are no longer just basic indoor lighting tools, but also a kind of practical art for architectural decoration. When ther...[Details]
RF/Wirelessly
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