#The7thLiChuangElectricityContest#USB Ammeter

Note: * is a required field,
please fill it in during the registration stage↓
 
* 1. Project function introduction
A USB ammeter can be connected to the USB interface, with a small screen to display the current, which can display the current in real time
 
*2. Project attributes
This project is a project for the Jiali Chuang 2022 summer training camp, not original.
* 3. Open source agreement
This project is all open source
 
*4. The hardware part
uses the N32G430C8L7 microcontroller, with a maximum operating frequency of 128MHz, supports 40 reusable I/Os, provides a wealth of high-performance analog interfaces, and provides a variety of digital communication interfaces, including 4 U(S)ARTs, 2 I2Cs, 2 SPI/I2Ss, and 1 CAN 2.0B communication interface.
The N32G430C8L7 microcontroller product can work stably in a temperature range of -40°C to +105°C, with a supply voltage of 2.4V to 3.6V, and provides a variety of power consumption modes for use.
In order to save the area occupied by the buttons on the PCB, the reset circuit and the boot circuit do not use buttons, but two solder joints are used instead. . .
 
Burning interface
 
sampling circuit
 
display module
Note: It is recommended to use Jialichuang 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. The software part
directly uses the official code
 
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 popularization 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. BOM list