[Tuya Smart] Bedroom Environment Manager

Preface

I am an ordinary student in my sophomore year. I became deeply interested in microcontrollers and circuits in my freshman year, and began to learn C language and microcontrollers by myself. From "hello word" to lighting up the first light, from 51 to 32, from From simple circuit production to Internet of Things applications, I started to learn a little bit. During the summer vacation of my freshman year, I accidentally came into contact with Lichuang EDA and found that it is really an excellent domestic software that is easy to use and has many activities. From then on, I started to love it and became obsessed with it. To clean up, I just started working on it during the summer training camp and did not succeed in producing excellent works. At that time, I realized my shortcomings; Practice is always the best way to learn. When I started preparing for the e-sports competition at the beginning of the school year, my level was improved through continuous practice. After the electronic competition, I was lucky enough to participate in the first IoT training camp of Tuya and Lichuang and won a second prize. I was still very excited. After returning home from the winter vacation, Lichuang lived up to my expectations and continued Two training camps were held, but due to time schedule, I only participated in this one training camp. I did not find time to do the other training camp. I will definitely find time to make up for it later;

When I got home, I found that my bedroom was very crude and dangerous, so I developed a smart bedroom environment manager based on the situation in my bedroom, which can understand the bedroom environment and control and manage the bedroom environment and electricity safety;

Function one:

For the bedroom environment, use the DHT11 module to collect temperature and humidity and upload it to the MCU for display on the OLED screen, and upload it to Tuya Cloud through WB3S to display the information on the mobile APP, which is mainly used to understand the bedroom environment in real time;

Function two:

The bedroom light switch does not use the commonly used relay control, but uses a safer and simpler servo control. By installing a plastic piece on the servo, and controlling the rotating servo through a mobile phone, the bedroom light switch is realized On and off control, no need to connect wires, higher safety;

Function three:

I implement timing control on the power strip on my bedside. Every time I want to charge my phone before going to bed, but I am always afraid that the charging time will be too long, so I added this function, which will automatically cut off the power at 2 a.m. and start charging at 9 a.m. Automatically receive a call. Before going to bed, click on the APP to go to sleep. After 1 hour, the power strip will automatically turn off. After getting up, click on the wake-up button to turn on the power. This function uses a relay to control the switch of the power strip;

Function four;

The time is displayed on the OLED screen. You don’t need to turn on your phone when you get up. You can check the device, current time and current temperature to analyze whether you want to get up;

process:

I wanted to add more functions, such as curtains and air-conditioning controls, so that I can be away from home for a long time. My bedroom is relatively simple, with neither curtains nor air-conditioning. I am extremely helpless. After work, I must transform my bedroom into a fully intelligent one; if If I am lucky enough to get a smart speaker gift, I will add smart speaker control to the operation. When I get up, I will ask Xiaodu Xiaodu, the bedroom temperature and time, and let it analyze whether it is suitable to get up. It is really wonderful @.@

I have been learning to drive during the winter vacation, as well as preparing for and studying for a skills competition in the next semester, which made my time extremely crowded. After participating in the training camp, I didn’t start drawing the schematics and PCB diagrams until the 22nd. Fortunately, I had already thought of the idea and went straight to it. Just draw it. Now I am familiar with it. I completed the schematic diagram and PCB drawing in one afternoon and then waited for the review to receive the coupon. On the 25th, I was able to comment on the Tencent conference held by Mo Gong with the kindness of Sister Orange. Unfortunately, I went to eat in front of me and arrived in the back. After I came back, my friend told me that I was extremely heartbroken and corrected some inappropriate things under the guidance of Mo Gong;

Summarize: