#The 8th LiChuang Electronic Competition#Desktop clock ornaments

Note: * is a required item,
please fill it in during the registration stage↓
 
* 1. Introduction to project functions
1. R7FA2E1A72DFL is used as the main control chip of the electronic clock 2. A four-digit 0.56-inch common cathode digital tube is used to display the time 3. The DHT11 temperature and humidity sensor is used to collect the ambient temperature 4. Four buttons are used for clock setting buttons 5. A reset button, serial port circuit, and SWD download circuit are led out to facilitate download and debugging 6. The Renesas chip integrates a touch pin, and a touch pin is led out to be used as a touch button 7. A passive buzzer is used as a key prompt sound 8. The power switching circuit is composed of AO3401A+1N5819 diodes 9. The battery is charged by TP4056
 
 
* 2. Project attributes
Jiali Chuang EDA circuit design summer training camp novice area, replicating the official case.
 
 
* 3. Open source agreement
Public Domain
 
Note: Altruism is self-interest, please read the following content carefully.
Embrace open source and give the project infinite value. It is recommended that more than 80% of the core functions of the project be open source;
if a part of the function is irreplaceable and the project cannot solve the corresponding problem after deleting it, then the function implemented by this part is the core function of the project; for example, if an electronic load is designed and a host computer software is designed to monitor power changes, the electronic load is the core function and the host computer software is an auxiliary function; for example, an isolated 485 module is used in the electronic load to communicate with the host computer, then the communication function implemented by this 485 module is an auxiliary function;
the project should choose an open source protocol that suits it. If the project references other open source projects, the source should be indicated and the open source protocol of the original author should be followed; the original project is recommended to use the GPL3.0 open source protocol;
the functions implemented by directly referencing the original circuit or original code of the open source project cannot be used as the core functions of your own project, and the functions directly implemented by using the general modules on the market cannot be used as the core functions of your own project.
 
Please fill in the following in the competition stage↓
 
*4.
Please  
note for the hardware part: Jiali Chuang EDA is recommended. If you choose other EDA tools, please upload the schematic diagram in PDF format, the PCB drawing in PDF format, and the PCB file in Gerber format in the attachment. Here you can explain in detail the implementation principle and mechanism of your project, precautions, debugging methods, testing methods, etc. It is recommended to introduce your ideas to others in the form of both pictures and texts.
 
*5.
Please enter the content for the software part...
 
Note: If your project involves software development, please upload the corresponding project source code in the attachment. Here you can explain in detail your software flow chart, functional module block diagram, explanation or popular science of related algorithms, source code structure, compilation environment construction and configuration, source code compilation method, program burning method, etc. It is recommended to introduce your ideas to others in the form of both pictures and texts.
 
*6. BOM list
 
Note: BOM list involved in the project. Please upload a screenshot of the BOM in this position. Please upload the list details in PDF format to the attachment. It is recommended to include model, brand, name, package, procurement channel, purpose, etc. The specific content and form should be based on the clear expression of the project composition.
 
*7. Competition LOGO verification
 
Click zip to download the competition logo! (Competition logo).zip
 
* 8. Demonstrate your project and record it into a video to upload.
 
Video requirements: Please shoot horizontally, with a resolution of no less than 1280×720, in Mp4/Mov format, and a single video size limited to 100M;
Video title: Lichuang Electric Competition: {Project Name}-{Video Module Name}; For example, Lichuang Electric Competition: "Autonomous Driving"-Team Introduction.
 
More details: https://diy.szlcsc.com/posts/15a52db9fd7d40c492eb505280278e45