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When introducing the microcontroller resources earlier, we mentioned that the STC89C52 has a total of 512 bytes of RAM, which is used to save data. For example, the variables we define are stored dir...[Details]

/* Jumper setting: default jumper position, note that the buzzer selection jumper J5 should be selected at terminal 23 Program effect: Use the timer/counter of the microcontroller to design...[Details]

ASCII to BCD conversion subroutine ASCTOBCD:  MOV      R7,# 06H  MOV      R1,# 20H                 MOV      R0,#20H                  ACALL     ASCBCD  LOOP:  SJMP     LOOP  ASCBCD:  MOV     A,@R0  CL...[Details]

Not long ago, China Media Group, China Mobile and Huawei jointly completed the industry's first 5G+8K ultra-high-definition video cross-provincial transmission test.   It is reported that 8K UHD live...[Details]

As long as the brake trigger wire is not connected to the anti-theft device, the automatic locking effect can be achieved. This wire is usually a thin orange wire. The main door will not be locked ...[Details]

Improving vertical resolution has always been the goal of oscilloscope designers, as engineers need to measure finer signal details. However, achieving higher vertical resolution is not achi...[Details]

      According to The Verge, Google is about to release a new version of Pixel 4a 5G, which will be cheaper than the current version, specifically US$499 (approximately RMB 3,200). 　　The report poin...[Details]

With the active development of electric vehicles in the automotive industry in recent years, the range and charging efficiency of electric vehicles have always been the weaknesses of electric vehicle...[Details]

The much-anticipated 3rd China International Import Expo will be held at the National Exhibition and Convention Center (Shanghai) from November 5 to 10, 2020. As a major international economic and tr...[Details]

You can use the multimeter's resistance range *100 or *1K or the diode range to measure whether the main circuit terminals are connected. If one group or more are in an open circuit state, it will be...[Details]

Siemens Digital Industries Software has been named a leader in Product Lifecycle Management (PLM) by Forrester Research. In its “Forrester Wave™: Product Lifecycle Management for Discrete Manufacture...[Details]

How to assign a variable to a specific address For example: unsigned char temp_A@0x00; //Define unsigned variable temp_A and force its address to be 0x00 unsigned char temp_B@0x100; //Define unsigned...[Details]

"Hainan is very rich in solar energy resources and should take the lead in the introduction and development of solar energy technology." On the afternoon of April 12, the American company Esolar held ...[Details]

1. Ultrasound Bats and some marine animals can use high-frequency sounds for echolocation or information communication. They can emit ultrasonic waves generated from the throat through the mouth or n...[Details]

3D depth sensors play an important role in in-vehicle monitoring systems, enabling innovative car cockpits, seamless connectivity to new services, and greater passive safety. They are essentia...[Details]