Digital clock design based on 51 microcontroller – digital tube display

Digital clock design based on 51 microcontroller (Simulation + Program + Schematic + Design Report) Function introduction Specific functions: 1. Automatic timing, showing 24-hour time, and a 6-digit LED display showing hours, minutes, and seconds. 2. Automatic timing, showing 24-hour time, and a 6-digit LED display showing hours, minutes, and seconds. 3. Equipped with calibration […]

Intelligent temperature control fan design based on 51 microcontroller – digital tube display

Intelligent temperature control fan design based on 51 microcontroller (Simulation + Program + Schematic + Design Report) Function introduction Specific functions: 1. The digital tube displays the current temperature in real time 2. You can set the upper and lower temperature limits 3. When the temperature is lower than the lower limit temperature, the cooling […]

Displaying XML documents using CSS

Introduction to CSS CSS (Cascading Style Sheet, Cascading Style Sheet or Cascading Style Sheet) is a style control language. Its basic idea is to define a corresponding set of display styles for each tag in the structural document. CSS can not only statically modify web pages, but can also cooperate with various scripting languages to […]

ZYNQ-FPGA-RTC (real-time display clock)

1. PCF8563 introduction The data generation of the real-time clock is completed through the PCF8563 module. PCF8563 has alarm function, timer function, time Clock output function and interrupt output function. Memory addresses 00H and 01H are used as control registers and status registers (CONTROL_STATUS); memory addresses 02H~08H are used as TIME timers (seconds~year timers); addresses […]

Development and implementation of virtual display based on IDD technology

Article directory Development and implementation of virtual display based on IDD technology 1. Technical architecture 2. IddCx object 2.1 IDDCX_ADAPTER structure 2.2 IDDCX_MONITOR structure 2.3 IDDCX_SWAPCHAIN structure 3. About EDID 4. IDD development 5. About the installation of IDD driver 6. About mounting and running the device 7. Other questions 7.1 About IddCxAdapterInitAsync failure 8. […]

ElementPlus+Vue tree structure displays data

1. Parent-child upper and lower levels HTML: <el-tree v-if=”permission.length > 0″ :data=”permission” :props=”props” :show-checkbox=”true” expand-on-click-node @check=”handleCheck” default-expand-all > default-expand-all: Expand all by default; expand-on-click-node: Click to expand/contract; :show-checkbox=”true”: Show the check box; JS: permission: [], // Data obtained by the backend props: { children: ‘menu’, // The root node contains the fields of all child […]

Flutter displays the guide page of the bottom control

Requirements: Two different entrances to the same page, the position of the same control changes, and the position of the guidance content corresponding to this control also needs to be changed when the guidance page is displayed; at the same time, the translucent bottom displays the real page content. If you need to cut the […]

[Cambrian (2)] Media processing system: use of vgu video graphics unit, resize image (resize), cover (cover), operation display (osd), mosaic (mosaic), draw line (drawline), rotation ( rotate)

1 API situation of VGU library cnS32_t cnvguBeginJob(cnvguHandle_t *phHandle); – This function may start an image processing task, and its parameter may be a handle to the processing task. The return value may be an error code (S32_t is usually used for error codes) or a status code. cnS32_t cnvguCancelJob(cnvguHandle_t hHandle); – This function may […]

Project practice: display the first page of data

1. Add query for the first page data and query the total number of records in the FruitDao interface package com.csdn.fruit.dao; import com.csdn.fruit.pojo.Fruit; import java.util.List; //dao: Data Access Object data access object //Interface design public interface FruitDao { void addFruit(Fruit fruit); void delFruit(String fname); //Delete fruit inventory record through fid void delFruitByFid(Integer fid); void updateFruit(Fruit […]