How To: Make an LED or a light emitting diode
Take a tour through the world of the light-emitting diode. Learn - who invented it, how to use it, and how to make your own. A light-emitting-diode (LED) (pronounced /??li?'di?/),[1] is a semiconductor diode that emits light when an electric current is applied in the forward direction of the device, as in the simple LED circuit. The effect is a form of electroluminescence where incoherent and narrow-spectrum light is emitted from the p-n junction. According to Wikipedia, LEDs are widely used as indicator lights on electronic devices and increasingly in higher power applications such as flashlights and area lighting. An LED is usually a small area (less than 1 mm2) light source, often with optics added to the chip to shape its radiation pattern and assist in reflection. The color of the emitted light depends on the composition and condition of the semiconducting material used, and can be infrared, visible, or ultraviolet. Besides lighting, interesting applications include using UV-LEDs for sterilization of water and disinfection of devices, and as a grow light to enhance photosynthesis in plants. Please enable JavaScript to watch this video.
News: iOS 11.2 Released to the Masses with Bug Fixes, Apple Pay Cash & More New Features How To: Everything You Need to Know About Apple's New iOS 7.1 Beta 5 for iPad, iPhone, & iPod Touch News: iOS 11.4.1 Beta 4 Released for iPhones, Includes Only 'Bug Fixes' & Unknown Improvements
Settings to hide pattern lock dots on Nougat (Android 7.0 & 7.1) Settings > Personal section > Security > Screen lock settings > Make pattern visible (Enable / disable using this) Above you can see the perfect solution to hide pattern lock dots on android lollipop (5.1.1), KitKat, marshmallow, Nougat and Oreo devices.
How to Make Your Android Unlock Pattern Visible | AOL.com
My Next Car how to video series - how to restore factory settings in Peugeot 308 iCockpit (2015, 2016 and 2017 Europe model). You use this if you want to return to the default values present when the vehicle was new.
diy handheld . The concept of creating a gaming portable out of a home console has been around for some time, but it's hardly seen the other way around. you too can build your own games
How to Make a DIY Portable Wii | Hackaday.io
If you want to know what else is new in iOS 12, in general, make sure to check out my iOS 12 features roundup in Gadget Hacks. For now, here's everything AR-related that Apple has included in iOS 12. For now, here's everything AR-related that Apple has included in iOS 12.
New features available with iOS 12. - Apple
Once your iPhone or iPad has been unlocked, you will see Cydia show up on your Springboard, which is a directory for all available jailbreak apps on the iPhone, iPad or iPod Touch. After undergoing a few potential upgrades inside the app itself, you will want to download WinterBoard from Cydia .
How To Easily Update and Install iOS 10 iPhone, iPad, iPod
Turn an Old Android device into a Security Camera. Step 2. Now after installing this app on your android device just launch it and then from the settings of the app just set up the video preferences, effects and some other aspects of the video that you would see later on.
5 Best Security Camera Apps for 2019 - lifewire.com
How to set a custom ringtone on your Motorola Droid Turbo 2. We will show you through this article how to set a custom ringtone on your Motorola Droid Turbo 2, especially if this ringtone comes from an MP3 file. Even better, we'll show you how to edit your favorite MP3 tracks on your Motorola Droid Turbo 2.
How to Load ringtones from your computer onto your Droid
Droid Updatez: How to Bypass Candy Crush Saga's Waiting Period to Get New Lives & Levels Immediately. How to Bypass Candy Crush Saga's Waiting Period to Get New
How to Bypass Candy Crush Saga's Waiting Period to Get New
The phone is great and silky smooth so far but my biggest gripe and I know this is something I could become accustomed too if I had too but I was hoping that maybe there was an easy way to swap the placement of the two buttons. On Samsung's the back button is on the right and the recent apps button on the left.
Android Basics: How to switch the placement of the recents
Did your mobile phones battery drain all the way to zero and now your device is completely dead, not powering on or not even letting you charge it? This article will go through some tips on how you might be able to revive your dead phone.If your cell phone is a smartphone then this is a reasonably common issue.
How to Fix Dead Lithium-Ion Batteries That Won't Hold a
How To: Safely Manage All Your Two-Factor Authentications in Just One Android App How To: Add 2-Step Verification to Uber for Stronger Overall Account Security How To: Set Up Instagram Recovery Codes So You Can Always Access Your Account with 2FA Enabled
How to Set Up Two-Factor Authentication for Your Accounts
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