#The 8th LiChuang Electronic Competition#Embroidered screen clock + USB to 485/232

Note: * is a required field,
please fill it in during the registration stage↓
 
* 1. Introduction to project functions
1. 255*122 black and white ink screen clock
2. Lithium battery power supply, charging
3. USB to 485 (isolated)/232
* 2. Project attributes
First time public, original.
Note: Please indicate whether the project is first time public; 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 in school.
 
* 3. Open source agreement
GPL3.0
 
Note: Altruism is self-interest, please read the following 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 functions is irreplaceable and the project cannot solve the corresponding problem after deleting it, then the functions implemented by this part are the core functions 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 quotes other open source projects, the source should be indicated and the original author's open source protocol regulations should be followed; original projects are recommended to use the GPL3.0 open source protocol;
functions implemented by directly quoting the original circuit or original code of the open source project cannot be used as the core functions of your own project, and functions directly implemented using general modules on the market cannot be used as the core functions of your own project.
 
Please fill in the form during the competition stage↓
 
*4. Hardware part
1. MCU uses R7FA2E1A72DFL
2. SPI 250*122 ink screen
3. USB to 485 (isolated)/232, using FT232RL, SP3232EEY, ADM3485, using BO5O5S to provide isolation for ADM3485, and using the dip switch to switch the mode. LED lights indicate the communication status
4. Joystick control
5. DTH11 temperature and humidity
6. Lithium battery power supply and charging, using LGS5500EP to manage the battery, and using HT7333 to reduce 5V to 3V. LED lights indicate the charging status
 
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.
Please enter the content for the software part...
1. Keil project
2. The program attachment includes two versions
: no RTOS and freeRTOS 3. It includes two ways to drive the screen: hardware SPI and software SPI
4. ADC acquisition
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
...
The ink screen resolution is 122*250, SPI screen, purchased from Taobao, store: Zhongjingyuan
game handle joystick, full size, Taobao purchased
3.7v lithium battery, Taobao store: Zhongshunxin
 
*7. Competition LOGO verification
Click zip to download the competition logo! (Competition logo).zip
 
* 8. Demonstrate your project and record it into a video and upload it to
https://www.bilibili.com/video/BV1MX4y1E796/
Video requirements: Please shoot in horizontal mode, 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