[i=s]This post was last edited by paulhyde on 2014-9-15 09:12[/i][i=s]This post was last edited by paulhyde on 2014-9-15 09:12[/i] 1. “Power supply” topics have appeared in all recent competitions . I...
A:
What is actually printed out here is not the content in the array.All that is printed out is FF.
B:
FF is printed because there is no short circuit between the transmitter and receiver.
Please see ...
[i=s]This post was last edited by fish001 on 2020-7-21 22:48[/i]I joined a large analog electronics company. This was my first job, and I was excited to face all kinds of new problems with my eyes wid...
I saw that the 16-bit VGA circuit of the development board on the forum did not use the ADV7123 chip, but used resistors as DA conversion. I would like to refer to it and make one. How would it work?...
I wrote a small serial communication program on a PDA using evc. I want to read data from COM3 and then forward the read data to COM1. I wrote both reading and writing in one thread, but the program r...
[color=#333333][backcolor=rgb(255, 255, 255)][font=Tahoma][size=12px]A new type of smart home system based on Android platform and Zigbee technology[/size][/font][/backcolor][/color] [color=#333333][b...
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]
There are three types of mobile TV: one is based on analog TV broadcasting network, another is based on mobile communication network, and the other is based on digital broadcasting network. The f...[Details]
This paper designs a dot matrix LED text display screen that is easy to update, expandable, and low-cost. The way to reduce costs is
① Use the Bluetooth data transmission function of mobile ph...[Details]
We know that microcontroller development tools generally include real-time online emulators and programmers. Among them, online emulators are very good tools, but they are also more expensive...[Details]
From the PIC16F946 datasheet, we know that there are two ways to write values to the LCD for display:
1. Directly write the value to LCDDATA1~LCDDATA23
2. Use disconnect t...[Details]
PV inverter manufacturer SMA has launched its first DC arc fault circuit interrupter (AFCI) PV inverter and has received UL certification.
The new SunnyBoy AFCI inverter models include 3000-US...[Details]
Toyohashi University of Technology demonstrated electric field coupled wireless power supply technology using life-size car tires and roads at the wireless technology exhibition "Wireless Technolog...[Details]
1 Introduction
There have been many studies on the detection and protection of power grid short circuit and line fault. The short circuit, overload and overvoltage protectors on the market have ...[Details]
Experimental tasks
A DS18B20 is used to form a temperature measurement system. The temperature measurement accuracy reaches 0.1 degrees. The temperature range is between -20 degrees and +50 de...[Details]
Single-chip microcomputers are widely used because of their small size, powerful functions and low price. This article introduces the method of designing a micro electronic piano using the AT89C51 sin...[Details]
Printed circuit boards ( PCBs
)
are used in most electrical products
. If a PCB has low
insulation resistance
(IR), the performance of the circuits on the PCB will be greatly reduced...[Details]
1. When the slip speed regulating motor is undergoing frequency conversion and energy saving transformation, the original excitation box (referred to as the speed regulating box) and the original s...[Details]
In 2012, more than half of the cars in the European, Japanese and American car markets will be equipped with color displays, navigation systems, satellite communications and other in-vehicle infota...[Details]
At present, the traffic congestion in cities is quite serious. According to relevant news reports: In China, the traffic congestion has expanded from megacities such as Beijing, Shanghai, and Guangzho...[Details]
Spatial Division Multiplexing (SDM) MIMO processing can significantly improve spectrum efficiency and thus greatly increase the capacity of wireless communication systems. Spatial Division Multip...[Details]
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