Note: * is required.

[Please fill in during the registration stage↓]

* 1. Self/team introduction

I am a self-taught embedded engineer who has served as a technical leader in many companies, mainly in security and Internet of Things related industries. He is a creative and perseverant geek~

< br> During 2019, I learned front-end, back-end, desktop, linux, python and other development knowledge at home, established the Yun-Zhejiang Innovation Team, and implemented the Yun-Zhejiang smart home project. Yes, I am currently the only one in the team, hahaha~

< br> This is my personal website Yunzhe Innovation < br> < br>

* 2. Briefly introduce the project

This project is part of Yunzhe Smart Home. Due to the word limit of a single content and the too concentrated content affecting the viewing experience, it is divided into multiple projects. The details are as follows

< br> #The Fifth Lichuang Electronic Design Competition#Yunzhe Intelligent Home < br>

< br> #The Fifth Lichuang Electronic Design Competition#Yunzhe Smart Home-Serial Screen < br>

< br> #The Fifth Lichuang Electronic Design Competition#Yunzhe Smart Home-Touch Panel < br>

< br> #The Fifth Lichuang Electronic Design Competition#Yunzhe Smart Home-Light Controller < br>

< br> #The Fifth Lichuang Electronic Design Competition#Yunzhe Smart Home-Wall Switch < br>

< br> # Fifth Lichuang Electronic Design Competition # Yun-Zhejiang Smart Home-wifi serial key board < br>

< br> # Fifth Lichuang Electronic Design Competition # Yunzhe Smart Home-Internet of Things Incubator < br>

< br> This smart home is completed by an individual and may have imperfections during the design and development process.

< br> < br> To discuss the project, you can scan the QR code to join the group.

[Please fill in during the competition stage↓]

* 1. Describe project details

Product Features:

3-way touch;

433MHz transmit;

Low power consumption, button battery standby current is less than 10ua;

Support lithium battery;

With lithium battery charging function;

Self-luminous at night;

Can switch between 2 remote control modes (switch to stop, 3-way independent reverse stop mode);

Buzzer prompt;

LED light display;

Low battery prompt (no flashing when entering sleep mode when fully charged, 3 lights flashing before entering sleep when the voltage is weak, flashing 1 to 3 times, the battery is the weakest when 3 times);

Standby current in lithium battery mode is 40 to 70ua;

The default encoding is 1527, which can be changed to 2262 encoding;

* 2. Describe the challenges faced by the project and the problems solved

2.1 Touch panel distance test

For the linear visual control distance test of the touch panel and the light controller, the distance when the touch panel is powered by 5V is greater than 120 meters. Due to the test conditions, there is no distance under the test limit.

Under the test conditions of 3v button battery, the distance is about 10 meters, which meets the control situation of a single room.

2.2 When debugging wireless with touch panel

When debugging the 433 signal emitted by the wireless panel, the decoding using the receiving module is sometimes correct and sometimes incorrect. I feel that it is a power problem, but I still trust my welding ability. Since I don’t have an oscilloscope or a logic analyzer at hand, I use the 433 receiving module to connect what I made. The screen module is used to decode. The transmitting program is written by myself, and the receiving program is also decoded by myself. This leads to many nodes that may have problems. After debugging the code for two days, I found that there is no problem in the code. In the end, there is really no way, and I plan to boot the microcontroller. The pins are directly connected to the receiving microcontroller, so as to troubleshoot the code problem. When the circuit was modified and welded, I found that the ground of the triode on the wireless panel seemed to be slightly welded. After welding, it became normal. Therefore, you should not be blindly confident when it appears. Debugging is like detective work. Sherlock Holmes said: "When you have eliminated the impossibles, whatever remains, however improbable, must be the truth." - When you eliminate all impossible situations, what remains Yes, no matter how unbelievable it is, it is true.

2.3 The touch panel has certain room for improvement, mainly including the following points:

Add small solar panels to charge lithium batteries;

Modify the structure to make it easier to hold or wear;

Add buttons and controls;

Add screen and receiving modules to display the results of control feedback;

Add anti-accidental touch function;

* 3. Describe the key points involved in the hardware and software parts of the project

3.1 Wireless panel function selection settings

3.1.1. There is a pair of DIP switches in the upper left corner of the circuit board. After dialing the left button, wait for 3 seconds and then dial it back. When you see 3 LEDs, they will flash once or 3 times;

3.1.2. Flashing once means that the current remote control enters the on/off mode, that is, the functions of the three touch buttons from left to right are "remote control A on", "remote control A inverse", and "remote control A off"

3.1.3. Flashing 3 times means that the current remote control has entered the reverse stop mode. The functions of the three touch buttons are "reverse stop with remote control C", "reverse stop with remote control A", and "reverse stop with remote control B". The meaning of reverse stop is to take Reverse or stop, the function becomes 3 independent remote controls.

* 4. Project material list display

* 5. Upload project pictures

5.1. If the contest logo is not printed on the PCB, it will be deemed as giving up the participation.

5.2. Other pictures of the project

* 6. Demonstrate your project and record it as a video for uploading

6.1. Video upload contest official website

6.2. Video title and link at Station B

Notes: ①: Video requirements: Please shoot horizontally, the resolution is no less than 1280×720, the format is Mp4/Mov, the size of a single video is limited to 100M; ②: Video upload: please upload to the official website of the competition and Station B simultaneously ( www .bilibili.com ), the top 10 most popular projects at Station B will receive 1,000-5,000 yuan in cash rewards, and other uploaded projects will receive 100 yuan Lichuang Mall no-threshold coupons; ③: Video title: The 5th Lichuang Electronic Design Competition: {Project Name }-{Video module name}; such as the 5th Lichuang Electronic Design Competition: "Autonomous Driving" project - team introduction.

< br> < br> < br> The 5th Lichuang Electronic Design Competition: Yun-Zhejiang Smart Home-Personal Introduction and Project Introduction < br>

< br> < br> # Fifth Lichuang Electronic Design Competition # Yunzhe Smart Home-Touch Panel Function Demonstration < br> < br> < br> < br> Other content < br>

< br> < br>

* 7. Whether it is released to the public for the first time

7.1. Please indicate whether the project has been published or won awards before.

unpublished

7.2. If the project is optimized on the original basis, please explain the optimization part

no

* 8. Open source documents

* 9. References

Click the link for more details: https://www.szlcsc.com/go/dsxq