I used 4 8*8 ports, then connected the column ports 1 and 3, 2 and 4, and the row ports 1 and 2, 3 and 4 to make 16*16. I used two 74hc138 drivers for the column driver, and the row ports were connect...
The official LCD routines may have rich functions, so it takes some time to read and understand them; therefore, I implemented an implementation method that looks relatively simple and easier to under...
First, let me explain the meaning of the title in detail. My player runs in wince5.0. I have written various players, some use WMP, some use TCPMP, and some use DSHOW. There is always such a situation...
Battery life is critical for portable applications. For applications such as smoke detectors, security devices, and thermostats, factory-installed batteries need to last for more than 10 years. The...[Details]
0 Introduction
Ultrasonic waves
are mechanical waves with a frequency of more than 20KHz, and the propagation speed in the air is about 340 m/s (at 20°C). Ultrasonic waves can be gene...[Details]
As the automobile consumer market heats up, the safety performance of automobiles has attracted more attention from consumers. When driving at high speed, tire failure is the most worrying and diff...[Details]
: Ambiguous operators need parenthesesAmbiguous
symbol ``xxx``Argument
list syntax errorArray
bounds
missingArray
size
toolargeBad
character
in paramentersBad
file
name format in i...[Details]
Tags: Intelligent Video Video Surveillance HD Video
Currently, intelligent video analysis technology is gaining more and more attention in the security industry, and many projects have...[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]
Theoretically, any MCU can be broken by attackers with enough investment and time using the above methods. Therefore, when using MCU for encryption authentication or system design, the attacker's atta...[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]
In today's global energy shortage and increasing environmental pollution,
LED
has a broad application space with its energy-saving and environmentally friendly characteristics.
LED lamp...[Details]
GaN LEDs are widely used in mobile phone keypads, backlighting
components
, camera flashes, full-color outdoor
displays
,
etc., but their output
power
has not been high enough to signif...[Details]
1 Introduction
At present, most of the power factor compensators used by many industrial and mining enterprises adopt the method of three-phase simultaneous compensation, which has a bette...[Details]
The direct-drive wind power generation system is a new type of wind power generation system. It uses a wind rotor to directly drive a multi-pole low-speed permanent magnet synchronous generator to ...[Details]
Testing jitter is commonly used in testing data communication ICs or testing telecommunication networks. Jitter is the difference between the edges of a digital signal that should be present ...[Details]
There are two types of sound formats for transmission: IIS bus format and MSB (LEFT) JUSTIFIED format. The difference between MSB JUSTIFIED format and IIS format is that it always sends the high bit o...[Details]
In DC to low frequency sensor signal conditioning applications, the common mode rejection ratio (CMRR) of the instrumentation amplifier alone is not enough to provide robust noise rejection in har...[Details]
51mcu
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