Instructables: exploring - photos - technology - leds http://www.instructables.com Wed, 30 Jul 2014 02:40:00 PDT BLOX v1.01 Speed Independent Propeller Display [With english letter database] http://www.instructables.com/id/Speed-Independent-Propeller-Display-With-english-l/ http://cdn.instructables.com/FUD/6FO0/HTKXUXBW/FUD6FO0HTKXUXBW.SQUARE2.jpg http://cdn.instructables.com/FUD/6FO0/HTKXUXBW/FUD6FO0HTKXUXBW.SQUARE.jpg http://cdn.instructables.com/FUD/6FO0/HTKXUXBW/FUD6FO0HTKXUXBW.SMALL.jpg Samartist watch the video here https://www.youtube.com/watch?v=4jmODg4TcKE this is a propeller display built on MSP430, which is speed independent, and has a english letter database in it, all you have to do to change the text on the display is, change the string in the 'setstring()' function. the circuit di...
By: Samartist

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Wed, 2 Apr 2014 11:16:13 PDT
5$ Berlin Skyline Engraved Acrylic Display (battery-powered) http://www.instructables.com/id/5-Berlin-Skyline-Engraved-Acrylic-Display-battery-/ http://cdn.instructables.com/FMT/7RSG/HSVT6GFX/FMT7RSGHSVT6GFX.SQUARE2.jpg http://cdn.instructables.com/FMT/7RSG/HSVT6GFX/FMT7RSGHSVT6GFX.SQUARE.jpg http://cdn.instructables.com/FMT/7RSG/HSVT6GFX/FMT7RSGHSVT6GFX.SMALL.jpg CabbitCastle Background: One of my pre-Instructables projects from early 2013. As it was a rush build for a friend I did not have any time to take any progress pictures, but I'll try to describe the build process as detailed as possible. I hope that you will still be able to follow through and understand what I ...
By: CabbitCastle

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Mon, 17 Mar 2014 12:50:31 PDT
The One Chip LED Cube http://www.instructables.com/id/LED-Cube-Easy-Build/ http://cdn.instructables.com/FHG/BF7G/HSHQQPLV/FHGBF7GHSHQQPLV.SQUARE2.jpg http://cdn.instructables.com/FHG/BF7G/HSHQQPLV/FHGBF7GHSHQQPLV.SQUARE.jpg http://cdn.instructables.com/FHG/BF7G/HSHQQPLV/FHGBF7GHSHQQPLV.SMALL.jpg stevenarango Hello Fellow Instructables, If you ever Wanted to make Your own Cube, But Found The Instructions To be a bit Hard To Follow? Well  This is For You. The Cube Comes as a Kit From KIPKAY Kits.  You Could Buy it, or Become a Member and Each Month You will get a New Kit. It is Very  Easy To follow the...
By: stevenarango

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Thu, 6 Mar 2014 18:55:38 PST
Equalizer LED table with build-in speakers http://www.instructables.com/id/Equalizer-LED-table-with-build-in-speakers/ http://cdn.instructables.com/F0O/7WCE/HRTKIF2S/F0O7WCEHRTKIF2S.SQUARE2.jpg http://cdn.instructables.com/F0O/7WCE/HRTKIF2S/F0O7WCEHRTKIF2S.SQUARE.jpg http://cdn.instructables.com/F0O/7WCE/HRTKIF2S/F0O7WCEHRTKIF2S.SMALL.jpg Marc_Escobaem In this instructable i'll show you my LED table. It consists of over 100 LEDs, 2 speakers, some circuitry for the equalizer and audio crossover. The table can switch between normal LED illumination of the whole square and the on channel equalizer function.  What you cant see: if you place somethi...
By: Marc_Escobaem

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Wed, 19 Feb 2014 08:15:49 PST
Fun Led Checker Tester http://www.instructables.com/id/Fun-Led-Checker-Tester/ http://cdn.instructables.com/FLL/T1KJ/HR0AQAOJ/FLLT1KJHR0AQAOJ.SQUARE2.jpg http://cdn.instructables.com/FLL/T1KJ/HR0AQAOJ/FLLT1KJHR0AQAOJ.SQUARE.jpg http://cdn.instructables.com/FLL/T1KJ/HR0AQAOJ/FLLT1KJHR0AQAOJ.SMALL.jpg Geek07Boy The Fun Led Checker Tester was something I needed for my workbench for a long time. Whenever you have an idea you start by going through your parts. Leds are in most of my projects. I have a ton of Leds, but most are junk. I bought a grab-bag of 500 Leds from Jameco.com that is worth every dime I pa...
By: Geek07Boy

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Wed, 29 Jan 2014 10:35:07 PST
Simple Wheel LED for bicycle Wheel http://www.instructables.com/id/Simple-Wheel-LED-for-bicycle-Wheel/ http://cdn.instructables.com/F05/JNSG/HQVLB7PA/F05JNSGHQVLB7PA.SQUARE2.jpg http://cdn.instructables.com/F05/JNSG/HQVLB7PA/F05JNSGHQVLB7PA.SQUARE.jpg http://cdn.instructables.com/F05/JNSG/HQVLB7PA/F05JNSGHQVLB7PA.SMALL.jpg Irhash furqan - i test the circuit on breadboard - Multi-coloured LED on PCB - i test to rotating the LED with my hand - and then, i install the LED to my bicycle wheel - ride the bicycle by irhash furqan
By: Irhash furqan

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Sun, 26 Jan 2014 14:32:59 PST
LM3914 based LED VU METER by Victor Das http://www.instructables.com/id/LM3914-based-LED-VU-METER-by-Victor-Das/ http://cdn.instructables.com/FZJ/CMNV/HQRO1KN7/FZJCMNVHQRO1KN7.SQUARE2.jpg http://cdn.instructables.com/FZJ/CMNV/HQRO1KN7/FZJCMNVHQRO1KN7.SQUARE.jpg http://cdn.instructables.com/FZJ/CMNV/HQRO1KN7/FZJCMNVHQRO1KN7.SMALL.jpg victordas LM3914 based LED VU Meter its very simple and effective. Looks great when in action. It runs from 9v to 12v power supply. As like my all other projects its not just a idea or diagram its tested in all ways works just fine. Use 5mm Led looks great you can also use 3mm but the bigger the better. its a...
By: victordas

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Thu, 23 Jan 2014 07:11:00 PST
LED Sign http://www.instructables.com/id/LED-Sign-1/ http://cdn.instructables.com/F08/0DII/HQMN6G1N/F080DIIHQMN6G1N.SQUARE2.jpg http://cdn.instructables.com/F08/0DII/HQMN6G1N/F080DIIHQMN6G1N.SQUARE.jpg http://cdn.instructables.com/F08/0DII/HQMN6G1N/F080DIIHQMN6G1N.SMALL.jpg KKremke My friend's birthday is coming up, and she is a 14-year-old astronomy nerd. I decided to make her this sign, not only for a gift but to get the experience as a beginner to the world of LED's. It says "Astronomers Only". (Her nickname is "Sidereal" [astronomy term] and mine is "Fluffy. What a great n...
By: KKremke

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Mon, 20 Jan 2014 15:00:22 PST
Christmas Lights using LEDs Circuit http://www.instructables.com/id/Christmas-Lights-using-LEDs-Circuit/ http://cdn.instructables.com/F8W/PMQH/HPXFS8DL/F8WPMQHHPXFS8DL.SQUARE2.jpg http://cdn.instructables.com/F8W/PMQH/HPXFS8DL/F8WPMQHHPXFS8DL.SQUARE.jpg http://cdn.instructables.com/F8W/PMQH/HPXFS8DL/F8WPMQHHPXFS8DL.SMALL.jpg Electronics Hub This is a simple circuit used to decorate your home by building Christmas lights using LEDs. This is very easy circuit that will assist you to develop your own decorative lights. The main plus point of this circuit is that you need not worry about ON and OFF of the lights. In the evening time, the l...
By: Electronics Hub

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Thu, 2 Jan 2014 05:31:38 PST
LED HÀO QUANG 32x16 http://www.instructables.com/id/LED-HÀO-QUANG-32x16/ http://cdn.instructables.com/FZ2/R80R/HO0Q9N6Y/FZ2R80RHO0Q9N6Y.SQUARE2.jpg http://cdn.instructables.com/FZ2/R80R/HO0Q9N6Y/FZ2R80RHO0Q9N6Y.SQUARE.jpg http://cdn.instructables.com/FZ2/R80R/HO0Q9N6Y/FZ2R80RHO0Q9N6Y.SMALL.jpg inc409 Notes: Crystal 32Mhz Simu & PCB: http://www.4shared.com/rar/r9Dy0szMba/Simu__PCB_-_HQ_32x16_CA.html
By: inc409

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Thu, 2 Jan 2014 04:23:31 PST
Mini dc electricity generator http://www.instructables.com/id/Mini-dc-electricity-generator/ http://cdn.instructables.com/F1Z/UTM3/HPVT0HN4/F1ZUTM3HPVT0HN4.SQUARE2.jpg http://cdn.instructables.com/F1Z/UTM3/HPVT0HN4/F1ZUTM3HPVT0HN4.SQUARE.jpg http://cdn.instructables.com/F1Z/UTM3/HPVT0HN4/F1ZUTM3HPVT0HN4.SMALL.jpg ShivamPanwar Take a simple 5v dc motorconnect it to LEDThe LED glows for a second so i can't upload it glowing photo.Try itIt really works
By: ShivamPanwar

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Tue, 31 Dec 2013 23:10:58 PST
Persistence Of Vision Using Arduino UNO(New Prototype) http://www.instructables.com/id/Persistence-Of-Vision-Using-Arduino-UNONew-Prototy/ http://cdn.instructables.com/FR6/PVZ7/HPT91KDF/FR6PVZ7HPT91KDF.SQUARE2.jpg http://cdn.instructables.com/FR6/PVZ7/HPT91KDF/FR6PVZ7HPT91KDF.SQUARE.jpg http://cdn.instructables.com/FR6/PVZ7/HPT91KDF/FR6PVZ7HPT91KDF.SMALL.jpg abhirooprobotics Hello Guyz. I had Made A Project On POV Using Arduino UNO.I had viewed many models of many different users on this site.So i came up with a new prototype of POV. I was not sure at the beginning that it will work or not but at last it really did! I made this project for the annual exhibition held at ...
By: abhirooprobotics

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Mon, 30 Dec 2013 01:31:26 PST
Bright Little LED Christmas Tree - 9V http://www.instructables.com/id/Bright-Little-LED-Christmas-Tree-9V-10/ http://cdn.instructables.com/F8E/2M4K/HP1Q9ZRX/F8E2M4KHP1Q9ZRX.SQUARE2.jpg http://cdn.instructables.com/F8E/2M4K/HP1Q9ZRX/F8E2M4KHP1Q9ZRX.SQUARE.jpg http://cdn.instructables.com/F8E/2M4K/HP1Q9ZRX/F8E2M4KHP1Q9ZRX.SMALL.jpg 50makro Items: x15 - LEDs (green red yellow) x5   - 47 OHM Resistor (YellowPurpleBlack 12 inches of Thick Gauge wire for tree frame x2 solid core thin wire for Power Rails (22awg) 9V battery with latching clip Single Pole Single throw switch. Solder tools A project box Make 53 sets of 3 LED each in triangl...
By: 50makro

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Tue, 10 Dec 2013 18:11:24 PST
Elegant LED desk lamp http://www.instructables.com/id/Elegant-LED-desk-lamp/ http://cdn.instructables.com/FW5/Y5CS/HOUFYQP6/FW5Y5CSHOUFYQP6.SQUARE2.jpg http://cdn.instructables.com/FW5/Y5CS/HOUFYQP6/FW5Y5CSHOUFYQP6.SQUARE.jpg http://cdn.instructables.com/FW5/Y5CS/HOUFYQP6/FW5Y5CSHOUFYQP6.SMALL.jpg Grasshopper1221 I am not doing a step by step on this one I just don't have the time. Instead try to think of this as a puzzle to solve. I will provide a parts & tool list should anyone wish to make this. Vintage Kmart Bike head lamp. Big brass pulley taken from a weightlifting machine. Flexible snake lamp. 2 ...
By: Grasshopper1221

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Fri, 6 Dec 2013 10:31:19 PST
Half-Inch LED Cube: Arduino controlled 3x3x3 with SMD LEDs! http://www.instructables.com/id/Half-Inch-LED-Cube-Arduino-controlled-3x3x3-with-S/ http://cdn.instructables.com/F5W/AN76/HOHYCX4Y/F5WAN76HOHYCX4Y.SQUARE2.jpg http://cdn.instructables.com/F5W/AN76/HOHYCX4Y/F5WAN76HOHYCX4Y.SQUARE.jpg http://cdn.instructables.com/F5W/AN76/HOHYCX4Y/F5WAN76HOHYCX4Y.SMALL.jpg one49th Taking on the task started with me thinking 'Hey, I could make a smaller LED cube using SMD LEDs".   Yes, the idea was to solder the surface mount LEDs in space!    And yes I did it (the "Why" question remains).  Unpolished video:   I had built a "normal" 3x3x3 LED cube some years ago, kinda f...
By: one49th

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Sun, 1 Dec 2013 16:40:17 PST
Bedroom Mood Light http://www.instructables.com/id/Bedroom-Mood-Light/ http://cdn.instructables.com/FGG/47ID/HO7XIKVQ/FGG47IDHO7XIKVQ.SQUARE2.jpg http://cdn.instructables.com/FGG/47ID/HO7XIKVQ/FGG47IDHO7XIKVQ.SQUARE.jpg http://cdn.instructables.com/FGG/47ID/HO7XIKVQ/FGG47IDHO7XIKVQ.SMALL.jpg Nidža Surprise your partner with romantic mood light in your bedroom. Install LED strip behind your double bed and spice room with warm ambient light. NOTE: This is old project, so there is no progress pictures. Hope that text is going to be enough. After all, it is one simple project with effective resu...
By: Nidža

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Mon, 25 Nov 2013 23:49:21 PST
Patron led hanging patio lights http://www.instructables.com/id/Patron-led-hanging-patio-lights/ http://cdn.instructables.com/F9A/NX5S/HO7XQKNE/F9ANX5SHO7XQKNE.SQUARE2.jpg http://cdn.instructables.com/F9A/NX5S/HO7XQKNE/F9ANX5SHO7XQKNE.SQUARE.jpg http://cdn.instructables.com/F9A/NX5S/HO7XQKNE/F9ANX5SHO7XQKNE.SMALL.jpg ARGMISTER After doing some researching and reading on some ideas for lights for my backyard patio I came across this instructable.,..  http://www.instructables.com/id/Stylish-Half-bottle-LED-Lights/ ....well it sparked an idea and I remembered I had access to alot of patron bottles..empty already. Got a pr...
By: ARGMISTER

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Sun, 24 Nov 2013 18:10:20 PST
DIY Upgrade/ Supercharge your LED Keyboard/ Laptop Light http://www.instructables.com/id/DIY-Upgrade-Supercharge-your-LED-Keyboard-Laptop-L/ http://cdn.instructables.com/FX8/8WOC/HO7XJTQH/FX88WOCHO7XJTQH.SQUARE2.jpg http://cdn.instructables.com/FX8/8WOC/HO7XJTQH/FX88WOCHO7XJTQH.SQUARE.jpg http://cdn.instructables.com/FX8/8WOC/HO7XJTQH/FX88WOCHO7XJTQH.SMALL.jpg bhvm Hello again! Working late night with dingy dim Laptop lights is not the best idea for your eyes. Here we shall Take a normal Ebay LED laptop Keyboard light, and Modify it for better colour (Neutral white) and Brightness. In the first Picture, you can see our final Project. I am afraid that camera w...
By: bhvm

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Sat, 23 Nov 2013 22:28:59 PST
Poinsettia Circuit Puppet http://www.instructables.com/id/Poinsettia-Circuit-Puppet/ http://cdn.instructables.com/F02/T4EP/HO236N2Z/F02T4EPHO236N2Z.SQUARE2.jpg http://cdn.instructables.com/F02/T4EP/HO236N2Z/F02T4EPHO236N2Z.SQUARE.jpg http://cdn.instructables.com/F02/T4EP/HO236N2Z/F02T4EPHO236N2Z.SMALL.jpg steamingitattheMeninoCommunityCenter Creating a Circuit Puppet is a fun way to learn about circuits, elasticity, and a material’s strengths and weaknesses. Check out my PDF with all the instructions. Please let me know if you have any questions, comments or feedback. Donna Menino Community Center Boston MA
By: steamingitattheMeninoCommunityCenter

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Mon, 18 Nov 2013 15:47:09 PST
Improved Halo Sword preview http://www.instructables.com/id/Improved-Halo-Sword-preview/ http://cdn.instructables.com/F46/U2FE/HNM4AJ39/F46U2FEHNM4AJ39.SQUARE2.jpg http://cdn.instructables.com/F46/U2FE/HNM4AJ39/F46U2FEHNM4AJ39.SQUARE.jpg http://cdn.instructables.com/F46/U2FE/HNM4AJ39/F46U2FEHNM4AJ39.SMALL.jpg angelgabriel I finally got started on an improved version of last year's sword. This is a preview using Rhino 3D software. Fabrication from the finished 3D model will use vacuum forming and resin casting techniques. I will install LEDs, arduino processor, and an accelerometer. Follow me to get updates, and I wel...
By: angelgabriel

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Sun, 17 Nov 2013 05:21:08 PST
Pop Up Circuit Cards http://www.instructables.com/id/Pop-Up-Circuit-Cards/ http://cdn.instructables.com/F2O/36K4/HO65DTB4/F2O36K4HO65DTB4.SQUARE2.jpg http://cdn.instructables.com/F2O/36K4/HO65DTB4/F2O36K4HO65DTB4.SQUARE.jpg http://cdn.instructables.com/F2O/36K4/HO65DTB4/F2O36K4HO65DTB4.SMALL.jpg steamingitattheMeninoCommunityCenter We found a project like this on make.com and added a switch to the circuit to make it our own. We have had so much fun making this with all ages at our community center here in Boston and would highly recommend making them. It is so much fun and you also learn about circuits and get a chance to be c...
By: steamingitattheMeninoCommunityCenter

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Thu, 14 Nov 2013 14:35:29 PST
100W LED http://www.instructables.com/id/100w-Led/ http://cdn.instructables.com/FNS/1J50/HNT43A5B/FNS1J50HNT43A5B.SQUARE2.jpg http://cdn.instructables.com/FNS/1J50/HNT43A5B/FNS1J50HNT43A5B.SQUARE.jpg http://cdn.instructables.com/FNS/1J50/HNT43A5B/FNS1J50HNT43A5B.SMALL.jpg Jestin_Cubetech This is the demonstration of powering 100W/34V  LED  from 12V power-supply . there are 5 parts 1, 12V/7.4Ah UPS sealed lead acid battery 2, DC-DC step up converter [12v to 34V boost converter ]    http://www.ebay.com 3, constant current driver [ not include ]    ...
By: Jestin_Cubetech

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Thu, 14 Nov 2013 05:55:13 PST
LED Parasol bike light http://www.instructables.com/id/LED-Parasol-bike-light/ http://cdn.instructables.com/FAE/I98E/HNP96HY3/FAEI98EHNP96HY3.SQUARE2.jpg http://cdn.instructables.com/FAE/I98E/HNP96HY3/FAEI98EHNP96HY3.SQUARE.jpg http://cdn.instructables.com/FAE/I98E/HNP96HY3/FAEI98EHNP96HY3.SMALL.jpg urbanmx I built this bike for my wife a few years ago, it's stable and the kids love it. This summer during the heat wave we were riding later than normal just to stay cool. We needed lights on our bikes and I thought this would be great if it worked. At the time of the build I did not take pictures but I w...
By: urbanmx

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Thu, 7 Nov 2013 21:52:16 PST
Bottle cap LED Light http://www.instructables.com/id/Bottle-cap-LED-Light-1/ http://cdn.instructables.com/FST/0C75/HNRL5TTL/FST0C75HNRL5TTL.SQUARE2.jpg http://cdn.instructables.com/FST/0C75/HNRL5TTL/FST0C75HNRL5TTL.SQUARE.jpg http://cdn.instructables.com/FST/0C75/HNRL5TTL/FST0C75HNRL5TTL.SMALL.jpg thieida It is simple LED Light. The battely (CR2032) fits in to a bottle cap.
By: thieida

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Wed, 6 Nov 2013 22:33:59 PST
LED longboard http://www.instructables.com/id/LED-longboard/ http://cdn.instructables.com/FKS/Y68X/HN82KI6A/FKSY68XHN82KI6A.SQUARE2.jpg http://cdn.instructables.com/FKS/Y68X/HN82KI6A/FKSY68XHN82KI6A.SQUARE.jpg http://cdn.instructables.com/FKS/Y68X/HN82KI6A/FKSY68XHN82KI6A.SMALL.jpg out-of-the-box (I added the schematic! Ignore the non scematic talk. just updated!)  (18volt input not 19! sorry) I have been meaning to share tis build since I made it but I got side tracked a little. Its a led long board! I used segments of non-programable rgb led strips and used a 555 timer circuit to give t...
By: out-of-the-box

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Mon, 28 Oct 2013 14:59:57 PDT
Mask with Glowing eyes http://www.instructables.com/id/Mask-with-Glowing-eyes/ http://cdn.instructables.com/FPQ/EUKF/HN82NPTU/FPQEUKFHN82NPTU.SQUARE2.jpg http://cdn.instructables.com/FPQ/EUKF/HN82NPTU/FPQEUKFHN82NPTU.SQUARE.jpg http://cdn.instructables.com/FPQ/EUKF/HN82NPTU/FPQEUKFHN82NPTU.SMALL.jpg Trafalgar Law so i bought a plain white mask then i bought 2 small cliplights then i taped them in place then i covered the top of the lamps with tape so i didnt get light in my eyes done link to the same cliplights i used: http://www.corporacionjalit.com/product_info.php?products_id=578&osCsid=1d02vh68jddj2t...
By: Trafalgar Law

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Sat, 26 Oct 2013 12:08:12 PDT
Simple LED circuit http://www.instructables.com/id/Simple-LED-circuit/ http://cdn.instructables.com/F6T/ZRHP/HMVJOZV5/F6TZRHPHMVJOZV5.SQUARE2.jpg http://cdn.instructables.com/F6T/ZRHP/HMVJOZV5/F6TZRHPHMVJOZV5.SQUARE.jpg http://cdn.instructables.com/F6T/ZRHP/HMVJOZV5/F6TZRHPHMVJOZV5.SMALL.jpg aussie_bogan1 1.You will need one 5 mm diffused LED (any color), a 470 ohm resistor (yellow, violet, brown), a 9V battery snap/clip, and a 9V battery.  2. Connect the long wire on the LED to any end of the resistor.  3. Connect the black (negative) wire on the battery snap to the other end of the LED. 4. Conne...
By: aussie_bogan1

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Sat, 19 Oct 2013 21:27:15 PDT
DIY LED LIGHT BULB http://www.instructables.com/id/DIY-LED-LIGHT-BULB/ http://cdn.instructables.com/F4X/T4GW/HMMF6RY5/F4XT4GWHMMF6RY5.SQUARE2.jpg http://cdn.instructables.com/F4X/T4GW/HMMF6RY5/F4XT4GWHMMF6RY5.SQUARE.jpg http://cdn.instructables.com/F4X/T4GW/HMMF6RY5/F4XT4GWHMMF6RY5.SMALL.jpg kris754a building this LED light bulb requires medium soldering abilities, the lightbulb might not work in some countries, if you get a shock by it i will not be responsible, don't build it unless you know what you are doing, when it is about using ac power :-)
By: kris754a

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Tue, 15 Oct 2013 06:07:53 PDT
Motion Detection LED Lamp http://www.instructables.com/id/Motion-Detection-LED-Lamp/ http://cdn.instructables.com/FBB/5EB2/HMMF58LZ/FBB5EB2HMMF58LZ.SQUARE2.jpg http://cdn.instructables.com/FBB/5EB2/HMMF58LZ/FBB5EB2HMMF58LZ.SQUARE.jpg http://cdn.instructables.com/FBB/5EB2/HMMF58LZ/FBB5EB2HMMF58LZ.SMALL.jpg ardmatrik I am using PIC12F683 Micro-controller Unit (MCU) and Passive InfraRed Sensor (PIR Sensor) as a major components in this project. PIR sense the movement of a warm body. It analyzed the pattern off environment  to determined if there is changes in temperature. It detection angle 140 and 5m detection a...
By: ardmatrik

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Sun, 13 Oct 2013 09:38:29 PDT
Dorm Room Doorbell http://www.instructables.com/id/Dorm-Room-Doorbell/ http://cdn.instructables.com/FBD/U8A9/HM8CZZ3K/FBDU8A9HM8CZZ3K.SQUARE2.jpg http://cdn.instructables.com/FBD/U8A9/HM8CZZ3K/FBDU8A9HM8CZZ3K.SQUARE.jpg http://cdn.instructables.com/FBD/U8A9/HM8CZZ3K/FBDU8A9HM8CZZ3K.SMALL.jpg Diyified The idea behind this project is that you can build a simple "doorbell" for your  dorm room that uses light instead of sound to alert you (and not your RA!) of when you have a guest.  The best way to build this project is to build a simple light circuit using 2 AA battery's and a battery holder, con...
By: Diyified

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Thu, 3 Oct 2013 19:58:34 PDT
Blown Fuse Indicator Circuit with Led http://www.instructables.com/id/Blown-Fuse-Indicator-Circuit-with-Led/ http://cdn.instructables.com/FD1/OIVA/HLZRINXJ/FD1OIVAHLZRINXJ.SQUARE2.jpg http://cdn.instructables.com/FD1/OIVA/HLZRINXJ/FD1OIVAHLZRINXJ.SQUARE.jpg http://cdn.instructables.com/FD1/OIVA/HLZRINXJ/FD1OIVAHLZRINXJ.SMALL.jpg victordas This is a Blown Fuse Indicator Circuit With LED, its very useful when you need to know a fuse has been blown. Its very simple and as well as very cheap like my all other projects. It can be used in multiple places like home/car/bike just put it where you need to monitor a fuse condition. Whenever a ...
By: victordas

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Sat, 28 Sep 2013 12:50:54 PDT
Transformer less 12V power supply out of LED bulb http://www.instructables.com/id/Transformer-less-12V-power-supply-out-of-LED-bulb/ http://cdn.instructables.com/F80/LFX0/HLSHJ4FU/F80LFX0HLSHJ4FU.SQUARE2.jpg http://cdn.instructables.com/F80/LFX0/HLSHJ4FU/F80LFX0HLSHJ4FU.SQUARE.jpg http://cdn.instructables.com/F80/LFX0/HLSHJ4FU/F80LFX0HLSHJ4FU.SMALL.jpg ashuinfy Its actually a hack and a concept of reuse of scrap. I have a 4 LED night bulb and a spare not working adapter. I took out the actual components out of bulb and then replaced it with faulted PCB of adapter and I again got a 12 V adapter which I basically used to power 12V LED strips. In below circu...
By: ashuinfy

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Sat, 21 Sep 2013 02:05:25 PDT
LED Music Portable http://www.instructables.com/id/LED-Music-Portable/ http://cdn.instructables.com/FO9/AM97/HLOBPTGQ/FO9AM97HLOBPTGQ.SQUARE2.jpg http://cdn.instructables.com/FO9/AM97/HLOBPTGQ/FO9AM97HLOBPTGQ.SQUARE.jpg http://cdn.instructables.com/FO9/AM97/HLOBPTGQ/FO9AM97HLOBPTGQ.SMALL.jpg gm93d All you need: - LEDs or LED strip. - Transistor TIP31. - 3.5mm Stereo Jack Plug. - 12V adapter. - Plexiglass. - Universal Circuit Board. About the circuit: The Right or Left (you choose which one) channel from 3.5mm Stereo Jack Plug is connected to the Base of the transistor. The Ground of 3.5mm ...
By: gm93d

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Tue, 17 Sep 2013 06:04:26 PDT
Sugru LED Keyboard Light http://www.instructables.com/id/Sugru-LED-Keyboard-Light/ http://cdn.instructables.com/FED/NWUQ/HKVLJZVB/FEDNWUQHKVLJZVB.SQUARE2.jpg http://cdn.instructables.com/FED/NWUQ/HKVLJZVB/FEDNWUQHKVLJZVB.SQUARE.jpg http://cdn.instructables.com/FED/NWUQ/HKVLJZVB/FEDNWUQHKVLJZVB.SMALL.jpg makerspace_burch For those of you who don't have fancy laptops with backlit keyboards here is a simple trick which will make your keyboard light up. On some old laptops there used to be a small led which was there for lighting the keyboard. We are going to use 5 bright LEDs in order to light the keyboard. For those ...
By: makerspace_burch

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Wed, 28 Aug 2013 05:42:40 PDT
Convert a cheap flight joystick to a precise one http://www.instructables.com/id/Convert-a-cheap-flight-joystick-to-a-precise-one/ http://cdn.instructables.com/F60/MXSC/HKUD49OQ/F60MXSCHKUD49OQ.SQUARE2.jpg http://cdn.instructables.com/F60/MXSC/HKUD49OQ/F60MXSCHKUD49OQ.SQUARE.jpg http://cdn.instructables.com/F60/MXSC/HKUD49OQ/F60MXSCHKUD49OQ.SMALL.jpg minaedwar This instructable converts the cheap Genius Maxfighter F-16U joystick which uses potentiometers to a precise joystick using LED/LDR combination. I guess it is fit for any joystick that uses potentiometers.http://youtu.be/FDoeQvAU6d8
By: minaedwar

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Tue, 27 Aug 2013 11:14:21 PDT
LED constat current driver with op-amp http://www.instructables.com/id/LED-constat-current-driver-with-op-amp/ http://cdn.instructables.com/F9S/M7XN/HKPX1VX8/F9SM7XNHKPX1VX8.SQUARE2.jpg http://cdn.instructables.com/F9S/M7XN/HKPX1VX8/F9SM7XNHKPX1VX8.SQUARE.jpg http://cdn.instructables.com/F9S/M7XN/HKPX1VX8/F9SM7XNHKPX1VX8.SMALL.jpg LR_ I'm just going to show you a simply tweak to dan's Power LED's - simplest light with constant-current circuit. It's my first instructable so please leave feedback how to improve the explanation and make it more readable. And here's the circuit: Components i used: R1: 1M Ohm   (depends on yo...
By: LR_

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Fri, 23 Aug 2013 16:48:16 PDT
Blinking led with only one transistor npn http://www.instructables.com/id/Blinking-led-with-only-one-transistor-npn/ http://cdn.instructables.com/F0D/4O09/HJKC1BVH/F0D4O09HJKC1BVH.SQUARE2.jpg http://cdn.instructables.com/F0D/4O09/HJKC1BVH/F0D4O09HJKC1BVH.SQUARE.jpg http://cdn.instructables.com/F0D/4O09/HJKC1BVH/F0D4O09HJKC1BVH.SMALL.jpg suppamanIII This circuit allow to blink a led like a strobo light. It works with just a few components, but it's very critical circuit, could not work with all npn transistor it will not work also under 10V. Have fun! :) more info at http://elettroportale.altervista.org/Oscillatoretrs.html
By: suppamanIII

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Mon, 5 Aug 2013 10:40:26 PDT
5x5 LED matrix powered by Hackduino (The Arduino Clone)! http://www.instructables.com/id/5x5-LED-matrix-powered-by-Hackduino-The-Arduino-C/ http://cdn.instructables.com/FWH/I2ZJ/HJUWRWI9/FWHI2ZJHJUWRWI9.SQUARE2.jpg http://cdn.instructables.com/FWH/I2ZJ/HJUWRWI9/FWHI2ZJHJUWRWI9.SQUARE.jpg http://cdn.instructables.com/FWH/I2ZJ/HJUWRWI9/FWHI2ZJHJUWRWI9.SMALL.jpg JesusGeek My dream come true! I finally made an LED matrix! My hackduino was sad. So I used him to control my LED matrix!!! The enclosure was made from a huge sheet of plastic from hobby lobby, and it cost only six dollars! I used my gas solder iron as a blow torch to bend the main part of the enclosure. Then...
By: JesusGeek

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Sat, 3 Aug 2013 11:27:48 PDT
LED Music v3.0 http://www.instructables.com/id/LED-Music-v30/ http://cdn.instructables.com/FCR/TDJ3/HJKBW7HN/FCRTDJ3HJKBW7HN.SQUARE2.jpg http://cdn.instructables.com/FCR/TDJ3/HJKBW7HN/FCRTDJ3HJKBW7HN.SQUARE.jpg http://cdn.instructables.com/FCR/TDJ3/HJKBW7HN/FCRTDJ3HJKBW7HN.SMALL.jpg gm93d LED Music v3.0 1). LEDs 2). Transistor TIP31 3). 3.5mm Stereo Jack Plug 4). 12V adapter or 9V battery 5). Plexiglass
By: gm93d

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Sat, 27 Jul 2013 03:20:15 PDT
LED CUBE 8x8x8 (8051 VN) http://www.instructables.com/id/LED-CUBE-8x8x8-8051-VN/ http://cdn.instructables.com/FRC/0HCR/HJGE49DT/FRC0HCRHJGE49DT.SQUARE2.jpg http://cdn.instructables.com/FRC/0HCR/HJGE49DT/FRC0HCRHJGE49DT.SQUARE.jpg http://cdn.instructables.com/FRC/0HCR/HJGE49DT/FRC0HCRHJGE49DT.SMALL.jpg inc409   NOTE!!! CRYSTAL 32MHz Simulator & Schematic: http://www.4shared.com/rar/3i0BRvWI/LED_CUBE_8x8x8__8051_VN_.html
By: inc409

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Thu, 25 Jul 2013 11:08:43 PDT
Tetris game on LED matrix RG 8x16 (8051 VN) http://www.instructables.com/id/Tetris-game-on-LED-matrix-RG-8x16-8051-VN/ http://cdn.instructables.com/F4J/AIFI/HJGE46R8/F4JAIFIHJGE46R8.SQUARE2.jpg http://cdn.instructables.com/F4J/AIFI/HJGE46R8/F4JAIFIHJGE46R8.SQUARE.jpg http://cdn.instructables.com/F4J/AIFI/HJGE46R8/F4JAIFIHJGE46R8.SMALL.jpg inc409   Simulator: http://www.4shared.com/rar/B8PWL8vr/Tetris_Matrix_RG_8x16.html
By: inc409

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Thu, 25 Jul 2013 03:20:39 PDT
O-Lamp http://www.instructables.com/id/O-Lamp/ http://cdn.instructables.com/FOR/9IPO/HINO59MV/FOR9IPOHINO59MV.SQUARE2.jpg http://cdn.instructables.com/FOR/9IPO/HINO59MV/FOR9IPOHINO59MV.SQUARE.jpg http://cdn.instructables.com/FOR/9IPO/HINO59MV/FOR9IPOHINO59MV.SMALL.jpg Alex Jalland
By: Alex Jalland

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Wed, 3 Jul 2013 11:15:23 PDT
Coca Cola bottle light http://www.instructables.com/id/Coca-Cola-bottle-light/ http://cdn.instructables.com/FIU/YVVN/HIGFKPI0/FIUYVVNHIGFKPI0.SQUARE2.jpg http://cdn.instructables.com/FIU/YVVN/HIGFKPI0/FIUYVVNHIGFKPI0.SQUARE.jpg http://cdn.instructables.com/FIU/YVVN/HIGFKPI0/FIUYVVNHIGFKPI0.SMALL.jpg Alex Loftie This project was for my AS level, which I did this year. In simple terms it is a coca cola bottle filled with colored water, with strip led's to light it up. :P The bottles are all connected together and can be detached which means you could have multiple bottles together. They are connected by mi...
By: Alex Loftie

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Tue, 2 Jul 2013 12:55:00 PDT
Heart by RGB LED 2.0 (LED TRÁI TIM RGB 2.0) http://www.instructables.com/id/Heart-by-RGB-LED-20-LED-TRI-TIM-RGB-20/ http://cdn.instructables.com/F5B/0MXI/HI3U50GH/F5B0MXIHI3U50GH.SQUARE2.jpg http://cdn.instructables.com/F5B/0MXI/HI3U50GH/F5B0MXIHI3U50GH.SQUARE.jpg http://cdn.instructables.com/F5B/0MXI/HI3U50GH/F5B0MXIHI3U50GH.SMALL.jpg inc409 NOTE: XTAL 30-33MHz ALL IN ONE: http://www.4shared.com/rar/kPrQLSzs/EvMe.html
By: inc409

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Thu, 27 Jun 2013 10:36:14 PDT
How to make LED Fader using Digispark http://www.instructables.com/id/How-to-make-LED-Fader-using-Digispark/ http://cdn.instructables.com/FV1/S0H8/HI3TRMAJ/FV1S0H8HI3TRMAJ.SQUARE2.jpg http://cdn.instructables.com/FV1/S0H8/HI3TRMAJ/FV1S0H8HI3TRMAJ.SQUARE.jpg http://cdn.instructables.com/FV1/S0H8/HI3TRMAJ/FV1S0H8HI3TRMAJ.SMALL.jpg trytodoit https://www.dropbox.com/s/zj1mg9ewo62ttw7/animoto_high_res.mp4 MATERIALS REQUIRED (In order) item supplier Cat # quantity   220 ohm resistor digikey.com 220QBK-ND 3   RGB LED digikey.com 754-1492-ND 1   Female header 3 pin digikey.com S7001-ND 1   Female head...
By: trytodoit

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Tue, 25 Jun 2013 08:34:49 PDT
Hard Drive Tachometer for a Desktop Computer http://www.instructables.com/id/HDD-Tachometer/ http://cdn.instructables.com/FYZ/DWF1/HI3TRL9U/FYZDWF1HI3TRL9U.SQUARE2.jpg http://cdn.instructables.com/FYZ/DWF1/HI3TRL9U/FYZDWF1HI3TRL9U.SQUARE.jpg http://cdn.instructables.com/FYZ/DWF1/HI3TRL9U/FYZDWF1HI3TRL9U.SMALL.jpg WWC Tired of the old boring Hard Drive indicator LED, one puney LED. Then one choice is to add a HDD ( hard drive ) Tachometer. This tach will show the HDD activity on a desktop computer. Not for automotive use. Built with the 555 and 4017 combination. But the " Interface " is what makes this work. Tri...
By: WWC

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Mon, 24 Jun 2013 07:22:13 PDT
my rechargeable light easy to make http://www.instructables.com/id/my-rechargeable-light-easy-to-make-please-comment/ http://cdn.instructables.com/FVT/EFL4/HHCEJVV6/FVTEFL4HHCEJVV6.SQUARE2.jpg http://cdn.instructables.com/FVT/EFL4/HHCEJVV6/FVTEFL4HHCEJVV6.SQUARE.jpg http://cdn.instructables.com/FVT/EFL4/HHCEJVV6/FVTEFL4HHCEJVV6.SMALL.jpg usman asif things u need  battery wires 1mobile jack 2 resistor 1diode
By: usman asif

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Sat, 1 Jun 2013 01:15:55 PDT
8X8X8 LED Cube http://www.instructables.com/id/8X8X8-LED-Cube/ http://cdn.instructables.com/FHV/KRA2/HH2VN2RB/FHVKRA2HH2VN2RB.SQUARE2.jpg http://cdn.instructables.com/FHV/KRA2/HH2VN2RB/FHVKRA2HH2VN2RB.SQUARE.jpg http://cdn.instructables.com/FHV/KRA2/HH2VN2RB/FHVKRA2HH2VN2RB.SMALL.jpg mrsyfy Here is my take on this project. I have updated the protype board to stacked PC Arduino boards. In addition I made PC boards for the LED to mount to underneath the display top. I also mirrored the case on the bottom and the back of the cube enclosure. All of the LED leads attached to the stacked boa...
By: mrsyfy

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Sun, 26 May 2013 14:08:23 PDT
12V Sleeping Lamp http://www.instructables.com/id/12V-Sleeping-Lamp/ http://cdn.instructables.com/FEH/XM0H/HH2VMZCW/FEHXM0HHH2VMZCW.SQUARE2.jpg http://cdn.instructables.com/FEH/XM0H/HH2VMZCW/FEHXM0HHH2VMZCW.SQUARE.jpg http://cdn.instructables.com/FEH/XM0H/HH2VMZCW/FEHXM0HHH2VMZCW.SMALL.jpg ardmatrik Made of: 1. 1W smd 3.7V Cool White LED 2. Wire 3. Plastic vase 4. Hot Cup - white/fog color 5. PVC pipe 6. Slide switch Support Material & Tools: 1. Super glue/5minute 1 tonne hardex 2. Cutter 3. Mini project saw 4. Driller Mine the power supply is from 12V solar system. Total power ~4Watt
By: ardmatrik

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Sat, 25 May 2013 17:10:46 PDT
3W LED Hat Lamp Update (PWM Dimmer Circuit) http://www.instructables.com/id/3W-LED-Hat-Lamp-Update-PWM-Dimmer-Circuit/ http://cdn.instructables.com/FCJ/3T32/HGU2PJ9A/FCJ3T32HGU2PJ9A.SQUARE2.jpg http://cdn.instructables.com/FCJ/3T32/HGU2PJ9A/FCJ3T32HGU2PJ9A.SQUARE.jpg http://cdn.instructables.com/FCJ/3T32/HGU2PJ9A/FCJ3T32HGU2PJ9A.SMALL.jpg hanlin_y The hat lamp I previously designed had 3 brightness settings. I thought including a PWM dimmer would make it useful for dark adaptation and extending battery life. Using a dim setting for a warm color would be melatonin friendly when reading at night. In this circuit, I used SMD components which al...
By: hanlin_y

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Tue, 21 May 2013 12:08:18 PDT