D38999/50-DW

1. LED dot matrix luminescence principle If you want to light up a certain LED in the array, you only need to make the row where the LED is located output a high level and the column where the LED is...[Details]

The circuit of a 750mW bridge-tied load audio amplifier with DC volume control composed of the LM4865 amplifier IC is shown in the figure below. The LM4865 uses an 8-pin SO package and an 8-pin micro...[Details]

Mitsubishi's new generation RF amplifier module model Frequency Voltage VDD Input Pin(MW) Output Po(W) Encapsulation ...[Details]

I've been building a labview building recently, and I feel like I've learned a lot. For example, I learned how to publish to the web, and I learned about shift registers. There are still some useful t...[Details]

At present, most of the doorbells on the market use decoding solutions. The decoding solution has the disadvantages of small amount of code, easy duplication of code, large size, manual jumper and ...[Details]

The whistleblower @jimmyispromo @jimmyispromo said that he has obtained Samsung's upcoming new generation flagship model Galaxy Note 20 series and shared the Samsung Galaxy Note20 Ultra screen pictur...[Details]

Preface If we want to understand how a microcontroller runs a program, we first need to understand the composition of the microcontroller. Here we take the 80C51 microcontroller as an example to unde...[Details]

First, let’s take a look at how the book is written. The screenshot is as follows: It says: In μC/OS, the interrupt service subroutine must be written in assembly language. However, if the C lang...[Details]

According to foreign media reports, a research team at Daegu Gyeongbuk Institute of Science and Technology (DGIST) in South Korea has developed a technology to prepare a porous silica interlayer by l...[Details]

Common field fault phenomena of ultrasonic flowmeters include: abnormal flow rate display, drastic data changes; incorrect readings; the sensor is good, but the flow rate is low or no flow rate; the ...[Details]

Recently, there have been rumors that Huawei's mobile phones can no longer hold on. Similar to the sale of Honor, Huawei's mobile phones will be sold to an enterprise led by the State-owned Assets Su...[Details]

LED digital tube assembly program DISPBUF EQU 50H; 50H, 51H, 52H, 53H are display buffer  LED1 EQU P2.0; the first digital tube bit control  LED2 EQU P2.1; the second digital tube bit control LED3 E...[Details]

　　Typically, a parametric test system inputs current or voltage into a device under test (DUT) and then measures the device's response to this input signal. The paths of these signals are: from the t...[Details]

Background of the project   A domestic heavy-duty vehicle manufacturer, whose product range covers heavy-duty military off-road vehicles, heavy-duty trucks, heavy-duty axles and auto parts, has a mo...[Details]

On October 29, 2024, the on-site promotion meeting for the Shandong Haichen Integrated Zero-Carbon Industrial Park project was held in Heze, Shandong, officially announcing that the world's first l...[Details]