Led strip refers to the led assembly in the ribbon of the FPC (flexible circuit board) or PCB hard board, because its product shape like a strap, named. Because the service life is long (the general normal life is 80 ~ 100 thousand hours), and very e…

Creating ambient lighting in the home can bridge the gap between the internal world and the outside world. Why not use LED decorative lighting to paint the walls and let it feel your feelings? With LED ambient lighting effects and design, you can tur…

In the past 100 years, lighting has gone a long way. LED decorative lighting is now designed to meet any visual need. Consumers find it difficult to choose between traditional and modern styles. These options are easily overwhelmed when choosing ligh…

LED Decorative Light Supplier    introduction: LED track light is a track light with LED as the light source, alias: LED track light. It is a kind of track light, widely used in shopping malls (clothing stores, furniture stores and other brand stores…

led指示灯电路图大全(八款led指示灯电路设计原理图详解) led指示灯电路图(一) 图1所示电路中只有两个元件,R选用1/6--1/8W碳膜电阻或金属膜电阻,阻值在1--300K之间. Ne为氖泡,也选取用普通日光灯启辉器中的氖泡,若想用体积小且在60V左右即能启辉的氖灯泡,其型号为NNH-616型,电阻R选用270K的1/6W金属膜电阻.led指示灯电路: led指示灯电路图(二) 采用变压器将高压变为低压,并进行整流滤波,以便输出稳定的低压直流电.开关恒流源又分隔离式电源和非隔离式电源,…

Whether it is for general ambient lighting, task lighting or accent lighting, the decorative lighting in the home is functional and aesthetic. The well-designed rooms have multiple levels of lighting to meet all three lighting needs, but not all ligh…

今天依据最新的需求要对LED灯的提示闪烁频率进行改动,将之前默认的2000ms改为10000ms,可是改动之后没有产生预料中的效果,而是变成了常量,百思不得其解,最后还是read the fucking code,从上层究竟层,一路追下来,终于发现了问题所在,以下直接上MTK的LED driver代码: #define PMIC_PERIOD_NUM 9 // 100 * period, ex: 0.01 Hz -> 0.01 * 100 = 1 int pmic_period_array[]…

在当前的游戏引擎中,使用Light Probe来计算全局环境光对于动态物体的影响是一种很主流的方法.在预处理阶段生成完场景的Light Probe之后,传统的方法采用查找最近的8个相邻的Probe然后使用三线性的方式(Trilinear Interpolation)进行插值,但是这样的插值代价稍大,不过一个可行的优化就是尽可能地减少插值中使用的Probe的数量,比如由8个减少到4个不等.但是这时就不能再用三线性插值,而需要用其它的插值方法比如Inverse Distance等,不过这样就会带来另…

Wall lamps are mostly used for local lighting, can play a very decorative effect, improve the visual effect of the whole home space, especially suitable for European and American decoration style, wall lamps are more kinds, LED wall lamp is one of th…

LED Decorative Light Manufacturer    introduction: LED wall lamp is a light-emitting diode as a light source installed on the wall or furniture wall to become an LED wall lamp. Traditional wall lamps use halogen lamps, which have low luminous efficie…

Imagine you want to insert the car key into the keyhole in the dark. What would you do? You will definitely try to focus on the light source. LED keychains are currently a popular choice when lost in the dark. When you are in the dark, a convenient  …

I like how LED holiday lights add a little magic to the holidays. Want an easy way to reduce your vacation costs and your carbon footprint? Choose ultra-efficient LED lights. Depending on how many lights you use, you can save between $ 15 and $ 90, a…

Obviously, LED holiday lights are leading the competition in economical Christmas decorations, but this is not their only benefit. E.g: With traditional lights, you can only connect four to five strings of lights together on one socket, limiting the…

If you are experiencing problems with LED holiday lighting, the following guides will provide advice and solutions for common Christmas light issues. What should I do if the light is off? Check that all circuits are switched on and that all plugs hav…

The    LED Magic Light    states that the color-changing LED is not an LED in the package, but three LEDs and a small computer to drive them. The LEDs consist of red, green and blue LEDs, each of which can be controlled by a microcontroller. Since th…

Wake up in a strange hotel room in the evening and find the way to the bathroom, without stepping on the toes or being blinded by the wall switch lights, this can be a daunting task. The use of travel nightlights not only provides light, but also pro…

点个 LED 闪亮好像太单调,这次来个光控 LED 灯.这个其实不需要 Arduino 也能做,这次只是用来演示一下 PWM 在 Arduino 里面的做法.PWM 原理后面会解释.这次用充电宝提供 5V ,对四个 LED 供电,NPN 三极管作为开关用,Arduino 接基极发 PWM 控制亮度,另外 PWM 是从光敏电阻取值而发出.就是说,通过 Arduino,环境变暗,LED 就越亮的一个控制. 这一篇主要是针对新学的朋友们,讲解或者回顾一下基本知识点. 需要的材料 整个光控灯我们需要以下…

About this project This project was developed after I had to find out that controlling my RGB ambient light with the normal infrared remote control was complicated and not reliable. Within a few months I build this solution that enabled controlling m…

前言 答应了群主写一些示例程序,一直拖延拖延拖延唉.主要还是害怕在各大高手面前班门弄斧……(这也算是给拖延症找一个美好的理由吧),这几天终于下决心要写出来了,各位高手拍砖敬请轻拍啊. 示例程序 首先是闪灯程序 示例自带的闪灯就略过了,这里写个不大一样的,使用 millis() 来进行时间间隔的判断,与示例使用 delay() 的方式比较,这种方式不会阻塞主进程,以后很多地方会用得上的: // ----------------------------------------------------…

视频地址:https://www.bilibili.com/video/av10765766 超详细!!!!!! 单片机内部三大资源 [资源:单片机可提供使用的东西] FLASH 可以重复擦写 断电后数据不丢失 RAM 存储中间运算过程中产生和需要的数据 数据断电丢失 读写速度非常快 无限次擦写 SFR 单片机内部的功能对应一个或多个SFR 对SFR的读写.配置来实现单片机各种功能 啥是51单片机? 兼容Inter的MCS-51体系架构的一系列单片机 选择的STC89C52的数据 想让单片机运行…

云中树莓派(1):环境准备 云中树莓派(2):将传感器数据上传到AWS IoT 并利用Kibana进行展示 云中树莓派(3):通过 AWS IoT 控制树莓派上的Led 云中树莓派(4):利用声音传感器控制Led灯 1. Led 连接与测试 在某宝上买了几样配件,包括T型GPIO扩展板.40P排线.亚克力外壳.400孔面包板.若干杜邦线.现在我的树莓派长得这个样子了: 不由得感谢神奇的某宝,这些东西每一样都不超过三四块钱. 1.1 接线 以下几个简单步骤就完成了接线: 将排线一头插在树莓派的40…

LDO current regulator for power LED Challenge You've got a power LED? Great! Build a flash light! What does the spec say? "Voltage: 3.6 .. 3.8 V, power 3 W." Okay. This means that it draws some 800 mA. Three mignon cells give 4.5 V for at least…

LED与OLED的区别: led和oled的发光原理是一样的,只 不过区别是用的材料不一样led用的是金属材料,而oled用的是有机物材料. OLED不需要背光源,自己本身会发光,是采用发光二极管阵列组成.亮度要比LED液晶高,厚度更薄,是今后LED液晶屏的替代品.LED液晶屏需要背光源,亮度一般,在日光下难看清楚.但是目前应用最广泛. LED应用可分为两大类:一是LED单管应用,包括背光源LED,红外线LED等:另外就是LED显示屏,目前,中国在LED基础材料制造方面与国际还存在着一定的差距,…

Looking for something memorable to remind people of your business or nonprofit? Consider custom LED keychains. This will be a great way to promote your ads and keep your brand clearly visible in your audience. Choose from multiple colors and styles a…

在成功构建了一个能够运行在开发板平台的系统后,下一步就要正式开始应用的开发(这里前提是有一定的C语言基础,对ARM体系的软/硬件,这部分有疑问可能要参考其它教程),根据需求仔细分解任务,可以发现包含的外设有LED,BEEP,RS232,六轴传感(SPI接口),光环境传感器(I2C),音频输出, RTC等,如果按照这个顺序去实现驱动,一定程度其实又回归最初的模块学习的策略,不过既然是从应用的角度,先实现应用框架,来验证是否符合预期,这比测试模块驱动的更重要,也更容易有产出感. 按照这个需求,就可以…

文档标识符:PROJECTOR_T-D-P6 作者:DLHC 最后修改日期:2020.7.30 本文链接:https://www.cnblogs.com/DLHC-TECH/p/PROJECTOR_T-D-P6.html 前言 厌倦了手机屏幕?渴望在晚上体验电影院带给你的身临其境的感觉?买不起昂贵的投影仪?本文尝试使用LED光源.LCD显示屏.LCD驱动板.扬声器.光学透镜以及自制的电路,教你制造一台基于LCD.配备有运放的“家庭影院”. 首先,投影仪有两类:一类基于LCD技术,通过将光源投影在…

近年来,Micro LED因其功耗低.响应快.寿命长.光效率高等特点,被视为继LCD.OLED之后的新一代显示面板技术.Micro LED的英文全名是Micro Light Emitting Diode,中文称作微发光二极体,也可以写作μLED,是将传统LED薄膜化.微小化和矩阵化,使像素点距离从毫米级降低至微米级别,并在一个芯片上高度集成的固体自发光显示技术[1].其与常规LED最大的不同在于尺寸,大小相当于人头发丝的1/10,体积达到了主流LED大小的1%,然而像素尺寸当前还未形成统一的定义…

实验现象:在控制台打印按键值,并且通过按键控制相应的LED亮灭. 1.代码 input_subsys_drv.c #include <linux/module.h> #include <linux/version.h> #include <linux/init.h> #include <linux/fs.h> #include <linux/interrupt.h> #include <linux/irq.h> #include &l…

前些日子,从淘宝上购得一块08接口的双色LED显示屏(打算做个音乐频谱显示器),捣鼓了好几天,终于搞清楚了其控制原理,在这里做个总结,算是备忘吧. 1.LED显示屏的扫描方式 LED显示屏的扫描方式有静态.1/2.1/4.1/8.1/16几种. 这些扫描方式具体是什么意思呢?我们以1/16扫描方式为例来说明.因为LED显示屏是逐行刷新显示的,所以在任意时刻我们只能控制其任意一行的显示,每次刷新显示一行,16行为一个扫描周期,这就是1/16扫描方式.当然了,一个扫描周期的时间必须要小于人眼视觉暂留…

led驱动程序编写 本文主要包含三部分,led驱动程序led.c编写,编译驱动程序的makefile的编写,以及使用驱动程序的应用程序led_app的编写 一.led.c编写 #include <linux/module.h> #include <linux/init.h> #include <linux/cdev.h> #include <linux/fs.h> #include <linux/io.h> #include "led.…