1 Overview
In recent years, mobile communications have been rapidly developed and popularized in my country, and the transmitter and receiver technologies of wireless communications have also develope...
1. Introduction At present, the outdoor unit, access control video intercom and access control of mature smart home systems almost all use analog signals. When installing, a dedicated network needs to...
Sometimes, on the monitor screen, there will be several equally spaced vertical lines. The frequency of this interference signal is basically an integer multiple of the line frequency. If you use an o...
MYB-YT507H provides a 40-pin header with a 2.54mm pitch, interface J25. Through the TWI interface,
Use the PCF8575 chip with a 16-bit quasi-bidirectional input/output (I/O) port to expand the general ...
The strongest perpetual calendar source code V2.0: 1. Support all MCUs, ARM, AVR, MSP430, PIC, etc. (support C development) 2. Can be embedded in any standard C compiler BC++, VC, ADS, KEIL, etc. 3. S...
"Originally, there are many people who can design very good
chips
, but the market does not give domestic
chips
the opportunity to iterate, and domestic companies cannot give engine...[Details]
1. Principle 1. Infrared emission protocol The infrared transmission protocol has been written in the previous article , so I will not repeat it here. 2. Timer counting and input capture A timer...[Details]
Since the second half of 2017,
the market share of
quantum dot
displays has dropped significantly, with global sales falling from 3.42 million in 2016 to 2 million in 2017, a 42% decrease; d...[Details]
In the project, CPLD is needed to complete part of the algorithm design. The parameters are given by AVR, so the communication between AVR and CPLD needs to be completed. Therefore, a test program is...[Details]
The ARM11 (S3C6410) processor is selected as the hardware platform, the embedded Linux operating system is used as the software platform, the background difference method and the frame difference...[Details]
Since the 20th century, our data
storage
has evolved from media such as magnetic tapes, floppy disks and CDs to sophisticated semiconductor
storage
chips that can store data in coun...[Details]
According to the description provided in the official manual of ST, it is not difficult to see that the ADC analog watchdog is actually that the user can set an upper and lower limit of the AD value...[Details]
The role of the watchdog: Since the operation of the microcontroller is often interfered by the external electromagnetic field, the program may run away and fall into an infinite loop. The normal ope...[Details]
STM32 has two watchdogs: independent watchdog and window watchdog. This article mainly introduces the use of independent watchdog. Independent watchdog (IDWG): driven by an independent 40KHZ low-sp...[Details]
1. What is PWM What is PWM? Professionally speaking, it is pulse width modulation. In layman's terms, it is the continuous output of high and low levels. For example, the microcontroller outputs...[Details]
Design a program for the 51 single-chip microcomputer. It is known that the crystal oscillator frequency of the 89C51 single-chip microcomputer is 12MHz, and it is required to use T1 timing to output...[Details]
RF/Wirelessly
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