MAKER：maketvee/ 译：趣无尽 Previously, we introduced a very cool “Lava Effect Lamp”. In this tutorial, I will introduce a more user-friendly lamp. This LED matrix light uses standard WS2812b LED lights to form a cylindrical lamp body, finally combined with a wooden frame. The effect is quite amazing! First, watch the video below. Materials List 790×384 … Read more
In this article, we will explore the APDS-9960 gesture sensor and how to use it with WS2812B to control Neopixel LED strips. We can control the LED strip using simple gestures. Moving your hand left or right will change the direction of the running LEDs, while moving your hand up or down will change their … Read more
Information Technology Workshop Publishing updates on information technology workshops, information technology education news, and teaching cases and works. Public Account 【Video Tutorial】 【Operation Tutorial】 Lesson 4 Traffic Lights 1. Course Introduction The combination of loops and variables can achieve rich program variations. Last lesson introduced the combination of for loops and variable t to simplify … Read more
Previously, we introduced the basics of .NET nanoFramework. In this article, we continue with the example of the Microweather ESP32-S2-Pico to discuss development with .NET nanoFramework: controlling the onboard RGB lights and external RGB lights. The content includes the significance of status lights, WS2812, HSV, PWM, and related knowledge. 1. Background The first step in … Read more
This article mainly introduces the problems encountered when using .Net nanoFramework to drive the WS2812B LED on the ESP32-S3-Zero board, as well as how to design a light control class to conveniently use the status indicator light to display the working status of the device. 1. Introduction When using the .Net nanoFramework to drive the … Read more
1、 LCD液晶显示器是Liquid Crystal Display 的简称 ， LCD 的构造是在两片平行的玻璃当中放置液态的晶体 ， 两片玻璃中间有许多垂直和水平的细小电线 ， 透过通电与否来控制杆状水晶分子改变方向 ， 将光线折射出来产生画面 。 LCD为液晶显示屏 ， 本身不发光 ， 需要背光源 。 其由TFT基板与CF（ 彩膜 ） 基板贴合而成 ， 内充液晶 。 通过TFT基板提供电场来控制液晶旋转的角度 ， 从而起到控制液晶穿透率的作用 。 彩膜上印刷有RGB三种颜色色块 ， 背光源的光线透过透明的TFT基板 ， 透过液晶分子 ， 然后透过CF基板 。 受各个色块下液晶分子的穿透率不同的影响 ， 色块发出不同亮暗的红绿蓝三色 ， 可混合成显示所需的颜色 。 2、 LED是什么意思 ？ LED = Light Emitting Diode ， … Read more
Course OK02 is built on the foundation of Course OK01, achieving blinking by continuously turning the OK or ACT LED indicators on and off. — Robert Mullins Course OK02 is built on the foundation of Course OK01, achieving blinking by continuously turning the OK or ACT LED indicators on and off. Assuming you already have … Read more
Recently, BearPi quietly launched a new Pico board based on the Raspberry Pi RP2040 chip: BearPi-Pico RP2040 Raspberry Pi? Yes, you read it right! Raspberry Pi is not only an excellent open-source hardware brand but also a remarkable chip company. The RP2040 chip is designed and developed by the Raspberry Pi Foundation, using a 40 … Read more
In the world of electronics, lighting up an LED is often the first task for those learning Arduino or other microcontrollers, similar to the “Hello World” in C programming. This time, we will also try to light up an LED using the GPIO of the Raspberry Pi. 1. Understanding the GPIO of Raspberry Pi B … Read more
In the spring of the year, action comes first. To promote knowledge sharing, enhance professional capabilities, stimulate innovative thinking, and build a learning-oriented enterprise, on the morning of February 18, Guofeng New Materials organized a training session on the basic technical knowledge of LCD displays. The training invited Ding Daojun, the deputy director of the … Read more