#The7thLiChuangElectricityContest#USB voltage and current meter

Note: * is a required field,
please fill it in during the registration stage↓
 
* 1.
Please enter the content of the project function introduction...
Based on the N32G430 national chip design, the current voltage power USB meter realizes the 0.91-inch display of the I2C interface and supports 5V input
 
. Note: The theme is not limited, it can be a solution to a problem in life/work, a solution designed for a certain group of people/scenes, a graduation project/course design/DIY project/purely cool project, etc. Mainly talk about what means you used to solve what problem.
 
*2.
Please enter the content of the project attributes...
It is the same as the official case 5v version of the official competition of LiChuang, and no new functions have been added
. Note: Please indicate whether the project is publicly disclosed for the first time; whether the project is original; whether the project has won awards in other competitions, if so, please describe the details of the award; whether the project has participated in the defense at school.
 
* 3.
Please enter the content of the open source agreement...
GPL3.0
Note: Altruism is self-interest, please read the following content carefully.
Embrace open source and give unlimited value to the project. 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 original author's open source protocol 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 during the competition stage↓
 
*4, hardware part
1. The schematic diagram is as follows, current sampling circuit 0.01 ohm precision resistor  
Note: It is recommended to use Jiali Chuang EDA. 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 pictures and texts.
 
*5. Software part
.
 
Note: If your project involves software development, please upload the corresponding engineering 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 pictures and texts. *6. Please enter the content of
 
the BOM list ... Note: The BOM list involved in the project. Please upload a screenshot of the BOM in this position. Please upload the list details in the attachment in PDF format. 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 Please upload a project picture containing the competition logo, and the logo is printed on the PCB in the form of silk screen. 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/d76d9cb41705430e9a54e7a5feed07a5