//I am using the STM32F107VCT 25MHz external crystal oscillator//The firmware library is V3.5//I want to implement serial port communication (USART2), but I can't send any data. Please tell me where I...
[i=s]This post was last edited by Pawpaw_木瓜电子 on 2017-9-15 22:32[/i] [img=1242,527]http://www.pawpaw.hk/ckfinder/userfiles/images/201791415027.jpg[/img] [font=Arial][color=#000000][size=14px]The PXVF3...
[p=20, null, left][color=rgb(51, 51, 51)] Datasheet is probably the most common document that engineers come into contact with. Whether it is the selection at the beginning of the project or the subse...
Step 1: Calibration.In addition to the cable to be tested, another auxiliary cable is also required. The ZVB8 vector network analyzer (hereinafter referred to as VNA) we use has two ports: Port1 and P...
Like this situation: using the msp430G2 series microcontroller 32768KHz crystal with date and time clock function, it does not work normally, and only works when the key is pressed. Therefore, except ...
Hello, everyone! Two months ago, I posted a BLE Android development tips (see post: [url=https://bbs.eeworld.com.cn/thread-530263-1-1.html]BLE4.0 Android host development tips[/url]), but because the ...
As a wireless broadband metropolitan area network standard, WiMAX technology has greater advantages than previous 3.5GHz MMDS products in terms of non-line-of-sight transmission and spectrum utiliz...[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]
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]
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]
The data collector of the automatic weather station is generally designed based on a single-chip microcomputer or a PC/104 bus controller. It has the characteristics of good compatibility with PC, low...[Details]
1. What is temperature?
Heat is a type of molecular motion. The hotter an object is, the faster its molecules move. Absolute zero is defined as the temperature at which all molecular motion ...[Details]
I. Introduction
Since RS232 has a short communication distance (only 15 meters according to EAT/TAI-232 standard), and can only perform point-to-point communication, it cannot directly f...[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]
Digital array radar (DAR) uses digital beam forming (DBF) in both receiving and transmitting modes to achieve flexible distribution and reception of RF signal power in the airspace, obtain excellent t...[Details]
TC9012F is a universal CMOS large-scale integrated circuit for infrared remote control signal transmission, suitable for remote control of TV, VTR, laser player and other equipment. In the market, ...[Details]
Problems such as the depletion of natural resources, air pollution, traffic congestion, and rising fossil fuel prices have forced societies and individuals to seek alternative means of transportati...[Details]
Motors, especially those with brushes, generate a lot of noise. This noise must be dealt with if the appliance is to meet the requirements of EMC standards. The means to solve EMC are nothing more ...[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]
LED light sources have many environmental advantages, but early products still have certain technical bottlenecks in heat dissipation and high brightness design that cannot be broken through....[Details]
At present, a large number of cooling tower fans, speed fans and special fans are in use in petroleum, chemical, pharmaceutical, metallurgical and other enterprises. Some fans have no monitoring in...[Details]
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