PID Controller, also known as Proportional-Integral-Derivative Controller, is a type of feedback control system and mechanism used to control the regulation process of a system to reach the desired setpoint. It is a widely used control algorithm in industrial plants. The algorithm continuously calculates the error signal based on the difference between the desired setpoint … Read more
Introduction A few years ago, I heard about a creative door lock project: the user holds a sensing device and waves it in a specific manner. Once the device recognizes the action, it unlocks the door. This action becomes a form of key. I broke down this project into hardware and software components. The hardware … Read more
“Hey, Xiao Wang, your video editing is pretty good! How did you achieve those effects?” I glanced at Xiao Wang’s computer screen and couldn’t help but ask. Xiao Wang scratched his head and chuckled, “Brother Qian, I’m not really sure, I just followed the tutorial step by step.” “Oh? What kind of tutorial is that … Read more
The running light is a common electronic display effect characterized by multiple LED lights (or other light sources) lighting up and extinguishing in sequence, creating a dynamic visual effect similar to “flowing water” or “waves.” The running light experiment is simple and intuitive, making it a classic project for learning Arduino programming.1. Experiment Materials 1. … Read more
Click on the above“Zhongbei Middle School West District Experimental School” to join us in caring for children’s growth. In 2017, the State Council issued the “New Generation Artificial Intelligence Development Plan,” which clearly stated the need to “set up artificial intelligence-related courses in primary and secondary schools and gradually promote programming education,” laying a solid … Read more
Introduction I believe that working on some simple and fun projects is a great way to get started. During the practical process, you will encounter many requirements and issues, and solving these requirements and problems is part of the learning process. Today, I will share a project that randomly displays classical poetry. If you are … Read more
Lighting is an important medium for visual interaction. From the initial cold and warm light sources to the now programmable RGB LED lights that can control hue and brightness, the development and evolution of lighting have added more color to our lives. Many friends carefully design a set of startup lighting effects for their computer … Read more
In the previous article, we discussed reading data from water quality sensors based on Arduino. For details, you can read the historical articles. However, due to the limitations of Arduino, it cannot upload data to the network. Therefore, this article presents a method for configuring a water quality sensor based on ESP8266 for data reporting. … Read more
Wiring Let’s first take a look at the wiring. I am using a 0.91-inch 4-pin OLED display. OLED Pin ESP32-S3 Pin GND GND VCC 3.3V SCL 0 SDA 1 After completing the wiring, it looks like this: Installing the Library The library used to connect the OLED display is: image-20250409152629407 GitHub link: https://github.com/ThingPulse/esp8266-oled-ssd1306 Description This … Read more
Introduction I believe that working on some simple and fun projects is a great way to get started. During the practical process, you will encounter many requirements and issues, and solving these requirements and problems is part of the learning process. Today, I will share a project that randomly displays classical poetry. If you are … Read more