232-100-H0ZL20-25PC

;Using the 8051 serial port and the parallel output serial shift register 74LS164,                                                      ;expand the digit display to display the 10 digits 0-9 in a loo...[Details]

　　Generally speaking, in modern RF systems, the signal received by the antenna has a very high frequency and a very small channel bandwidth. If the desired channel is directly filtered out, the Q val...[Details]

Many emerging applications require powerful RF analysis tools that simultaneously capture time information in addition to the traditional frequency and amplitude axes. Many current RF signals vary be...[Details]

According to CCTV News, Russian President Vladimir Putin said on the 9th in the central Russian city of Yekaterinburg that in the era of globalization, Western countries' attempts to curb the develop...[Details]

ARM is an embedded chip, which is more powerful than a single-chip microcomputer and can add peripherals as needed. It is similar to a general-purpose CPU, but does not include desktop computers. EETO...[Details]

Calculation of Transformer Parameters for Forward Switching Power Supply The calculation of the parameters of the forward switching power supply transformer is mainly considered from the following a...[Details]

      The Qichacha App shows that on April 27, Vivo Mobile Communications Co., Ltd. disclosed a patent for a "foldable electronic device" with the publication number CN112711301A. 　　The patent abstra...[Details]

      1. Performance requirements for LED packaging materials 　　LED packaging materials must meet the requirements of packaging technology on the one hand, and meet the working requirements of LED...[Details]

　　introduction 　　LED-based signage and matrix displays bring more functionality and stunning visuals to a growing number of indoor and outdoor applications. Recent advances in LED technology have m...[Details]

On May 7, a PCB (printed circuit board) manufacturer in Foshan, Guangdong, was on the verge of bankruptcy due to high debt. In March this year, a long-established PCB manufacturer in Panyu, Guangzhou...[Details]

Write a blog and mark some of my analysis of the DMA function in STM32:  First look at the offset address on the lower left side of the above figure. The offset address is the relative address t...[Details]

First, after redefining printf, you can directly use the printf function to send data from the serial port Add code in usart.c: #ifdef __GNUC__   /* With GCC/RAISONANCE, small printf (option L...[Details]

According to a post by a netizen from IT Home, Xiaomi 9 has pushed the MIUI 12.5 stable version update, which is 2.6GB in size. 　　Xiaomi released the latest generation of MIUI 12.5 system in Decemb...[Details]

We often see various trigger modes in the trigger options of oscilloscopes. After setting the trigger mode, the waveform still cannot be displayed stably. Is it because the oscilloscope cannot meet th...[Details]

Experienced drivers who drive frequently may have encountered this situation: when the vehicle passes through a road section with tall buildings or a tunnel, our navigation will show a "satell...[Details]