# Fifth Lichuang Electronic Design Competition# Power consumption measuring instrument

Note: * is required.

[Please fill in during the registration stage↓]   1. Introduce your personal project to yourself/the team, mainly to familiarize yourself with PCB drawing. Lichuang EDA was used throughout the process. Except for a few bugs, it was quite convenient.   2. Briefly introduce the project. A power consumption testing project has its own convenience requirements. It is necessary to find a stable, high-precision, easy to carry and use, and a relatively modern one that can transmit data remotely, measure and save data for a long time, and can visualize data. consumption measurement products.

However, because this project started late, it was just started in the past week or two, and my personal hardware foundation is weak. The cost of this v1. , I will study, research and reconstruct this project in the future.

This project is currently only used to learn how to use Lichuang EDA and PCB pattern making.

[Please fill in during the competition stage↓] * 1. Describe the project details. Use the INA226 chip to continuously collect the power consumption of the load peripherals. The data is averaged about 100 times per second. The timer refreshes the data once a second, which is used on the OLED. Display and serial port transmission data.

* 2. Describing the challenges faced by the project and the problems it solves can basically satisfy simple measurements. The current accuracy is relatively close to that of a multimeter. The only advantage of this project is that the data is stored on the host computer, which can measure the cumulative power consumption for a long time. Due to the tight schedule, I was unable to implement functions such as data visualization.

* 3. Describe the key points involved in the hardware and software parts of the project. The hardware uses INA226, a mature chip that has been used in the world for a long time, which slightly reduces the size of the entire hardware. Most packages use 0402 packages, but there is still room for further improvement. , should be able to be reduced to less than 1.5 inches in size, about the size of an oled, which makes it easy to carry.

* 4. Project material list display

  5. Upload project pictures 5.1. Print the competition logo picture on the PCB. If you do not see it, you will be deemed to have given up the competition.           5.2. Other pictures of the project.    6. Demonstrate your project and record it as a video for upload. 6.1. Upload the video to the official website of the competition.

6.2. Video title and link video of station B < span class="colour" style="color: rgb(170, 170, 170); --darkreader-inline-color:#90846f;" data-darkreader-inline-color= "">< span class="size" style="font-size:12px">Notes: ①: Video requirements: Please shoot horizontally, with a resolution of no less than 1280×720, format Mp4/Mov, single video size Limited to 100M; ②: Video upload: Please upload it to the official website of the competition and Station B ( www.bilibili.com ) simultaneously. The top 10 most popular projects at Station B will receive a cash reward of 1,000-5,000 yuan, and other uploaded projects will receive 100 yuan. Lichuang Mall Unlimited Threshold coupon; ③: Video title: The 5th Lichuang Electronic Design Competition: {Project Name}-{Video Module Name}; For example, the 5th Lichuang Electronic Design Competition: "Autonomous Driving" Project - Team Introduction. < /span>< /span>< br> < br>   7. Whether it has been released to the public for the first time. 7.1. Whether the project has been published or won an award before, please explain. It refers to several projects that participated in the previous competition. 7.2. If the project is optimized on the original basis, please explain the optimization part   8. Open source documents

* 9. References https://item.taobao.com/item.htm?spm=a1z10.3-c.w4002-2963753174.9.6f4236c3d69NVu&id=522110381646 https://diy.szlcsc.com/p/liu517753357/di- gong-hao-dong-tai-dian-liu-dian-ya-gong-hao-ji-lu-biao https://diy.szlcsc.com/p/xacker/dong-tai-dian-liu-jian-ce -she-bei https://www.bilibili.com/video/BV1XJ411D7xr?from=search&seid=3264869546477277708 < br> < br> Click the link for more details: https://www.szlcsc.com/go/dsxq