After a long wait, the competition materials were shipped across the ocean from the United States.
However, due to the epidemic, it was left for a week before being unpacked.
There are three materials...
I have selected release for the serial port program generated by EVC, so there should be no system debugging information sent. Why, when I open the serial port and send data (send to the PC, and the P...
Is it the Translate Complete sign?My application is like this, using SPI to send data to a string of 74HC595 to drive the digital display. The following is the codewhile(SPI_I2S_GetFlagStatus(SPI1, SP...
[i=s] This post was last edited by Buzhulun on 2016-3-27 21:53 [/i] Share your experience of defending your rights when purchasing electronic products on EETALK-315! I am honored to have obtained [col...
introduction
MEMS is a high-tech that has flourished on the basis of integrated circuit production technology and dedicated micro-electromechanical processing methods. Pressure sensors develop...[Details]
(1) Open circuit voltage of the battery
(2) Internal resistance of the battery
(3) Battery operating voltage
(4) Charging voltage
Charging voltage refers to the voltage applied ...[Details]
Since the implementation of the self-weight toll collection system, the highway administration has not only high requirements for the vehicle axle recognition rate, but also requires a long service li...[Details]
: Ambiguous operators need parenthesesAmbiguous
symbol ``xxx``Argument
list syntax errorArray
bounds
missingArray
size
toolargeBad
character
in paramentersBad
file
name format in i...[Details]
Power over Ethernet
(POE) Overview
POE (Power Over Ethernet) refers to the technology that can provide DC power to some IP-based terminals (such as IP phones, wireless LAN access points ...[Details]
The progress and development of computer technology and modern communication technology have made Zigbee technology mature. This system has established a mesh network based on the Zigbee2007/PRO proto...[Details]
Fieldbus is a fully digital distributed underlying control network. Since its emergence, it has attracted widespread attention from researchers in the control field. However, for a long time, due t...[Details]
Engineers usually use multiple groups of cheap small-capacity batteries in parallel to achieve the larger battery capacity required by UPS. If multiple groups of batteries with poor performance uni...[Details]
LED lamp beads are voltage-sensitive devices and capacitive loads. In actual work, the current accuracy is required to be high, which is one of the main issues affecting the luminous efficiency and...[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]
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]
On March 27, Sharp announced the news of capital business cooperation with Taiwan's Hon Hai Precision Industry, the world's largest EMS (electronics product manufacturing service) company. This decisi...[Details]
(1) Time domain simulation results
The time domain simulation result is shown in FIG1 . The waveform of the amplitude modulated wave is in the middle of the figure, and the waveform above it ...[Details]
Introduction
RS422 is a widely used standard bus in serial communication. It can easily connect various computers, external devices, and measuring instruments to form a measurement and control ...[Details]
1 Overview
With the increasing application of various inverter power supplies, the research on inverters is also becoming more and more in-depth. At present, the most widely used in...[Details]