Instructables: question - leds http://www.instructables.com Wed, 30 Jul 2014 12:47:21 PDT BLOX v1.01 I want to make a joule thief to power a 10W LED (833ma @ 12v) from ~2 AA batteries, suggestions on toroid ? # of turns ? http://www.instructables.com/answers/I-want-to-make-a-joule-thief-to-power-a-10W-LED-83/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif yaly My transistor inventory: Part #          Package TIP122       TO-220 TIP32          TO-220 2N2222      SMD 2N3904      TO-92 2N3906      TO-92 C1815        TO-92 BC546        TO-92
By: yaly

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Sat, 19 Jul 2014 17:02:48 PDT
LED lamp voltage X DRIVER http://www.instructables.com/answers/LED-lamp-voltage-X-DRIVER/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif logoaki Hello my friends, What about the voltage, Is the driver that operates according to the voltage capacity of the bulb (20-26v) or is the lamp that operates according to the capacity of the driver (20-36v)? The voltage of which one acts according to the other? Can I use a lamp of any voltage since thi...
By: logoaki

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Fri, 18 Jul 2014 10:49:37 PDT
LED Lamp current X DRIVER http://www.instructables.com/answers/LED-Lamp-current-X-DRIVER/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif logoaki Hello very good people, 1. Someone told me that I can connect a 3.8A led lamp to 100w driver 3A (constant current) because the driver will dimmer the lamp. Is this correct? 2. Is the driver that operates according to the capacity of the bulb (3.8A) or is the lamp that operates according to the cap...
By: logoaki

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Fri, 11 Jul 2014 05:31:37 PDT
Can anyone help me troubleshoot a non-responsive RGB SMD5050 LED strip which keeps flashing rapidly in blue colour? http://www.instructables.com/answers/Can-anyone-help-me-troubleshoot-a-non-responsive-R/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif darmic I have recently bought a 5m strip of RGB SMD5050 300LED strip together with a 12v controller and remote control. I have cut and soldered this LED strip into numerous small parts, as suitable for my application (as additional car lights). However on powering up this LED strip, its colour is blue whic...
By: darmic

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Mon, 7 Jul 2014 18:19:28 PDT
Help! How can I power 2 1w LEDs with a 3.7V e-flite battery? http://www.instructables.com/answers/Help-How-can-I-power-2-1w-LEDs-with-a-37V-e-flite-/ http://www.instructables.com/files/deriv/F3K/A2Q4/HX6AOYM8/F3KA2Q4HX6AOYM8.SQUARE2.jpg http://www.instructables.com/files/deriv/F3K/A2Q4/HX6AOYM8/F3KA2Q4HX6AOYM8.SQUARE.jpg http://www.instructables.com/files/deriv/F3K/A2Q4/HX6AOYM8/F3KA2Q4HX6AOYM8.SMALL.jpg turbeau I am trying to wire/solder up two LEDs to put into a visor for a costume. When I tried the battery with 2 LEDs they burnt out. Since the two lights will be right in front of my eyes and the battery near my temple, I do not want anything getting too hot. I have tried to use online LED calculators but...
By: turbeau

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Thu, 3 Jul 2014 13:06:27 PDT
power LED strips via car battery? http://www.instructables.com/answers/power-LED-strips-via-car-battery/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif anuvanoob I've got a little project where I'm installing RGB LED strip lights in and around my car. They are 5 volts strips and looks like it'll require up to 10 to 12 amps for the total installation. Can I use the car battery to power this? If so, how do I go about doing this?
By: anuvanoob

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Wed, 2 Jul 2014 01:26:01 PDT
LEDs or even EL wire that reacts to sound (not just an audio line)? http://www.instructables.com/answers/LEDs-or-even-EL-wire-that-reacts-to-sound-not-just/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif jbennett38 I want to know if it's possible to create a set-up that will allow me to utilize a small (mini) microphone and then filter the sound to have specific LEDs react according to the frequencies.  The filtering might need to happen through the use of custom built crossovers in order to filter sound, and ...
By: jbennett38

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Tue, 1 Jul 2014 07:42:12 PDT
Can anyone point me to a good source for specialty LEDs? http://www.instructables.com/answers/Can-anyone-point-me-to-a-good-source-for-specialty/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif packrat I am  looking for someplace that sells miniature LEDs. My wife has a clothing project she is working on, and I am trying to add some light accents to it for her, but what I need for the project are tiny LEDs, preferably Thanks in advance for any help and resources folks can pass along. All your he...
By: packrat

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Mon, 30 Jun 2014 01:58:22 PDT
How can I connect three 100w lamps to a 300w led driver? http://www.instructables.com/answers/How-can-I-connect-three-100w-lamps-to-a-300w-led-d/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif logoaki Hello my friend, Could you explain if is possible to connect 3x lamps of 100w to 300w led driver? The led driver specification was: constant current, 27-36v, 9A. The lights: 1x, 27-30v, 3.5A, and 2x, 30-36, 3A. So, can I connect lamps with differents voltages to this dirver? If not, is it possi...
By: logoaki

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Sun, 29 Jun 2014 13:48:55 PDT
Run a few 1 watt LEDs using transistor from 3.7v ? http://www.instructables.com/answers/Run-a-few-1-watt-LEDs-using-transistor-from-37v-/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif shijilt hi , I want to control 5 X 1W leds using a LDR. It will be running on a 3.7v 4500mAh battery . I have the LDR circuit. The problem I face is , normal transistor are not capable of running 5W leds (1W X 5) , it just heats up. i tried some high power transistors , they seem to provide less voltage to...
By: shijilt

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Thu, 26 Jun 2014 21:43:58 PDT
LED Math Help http://www.instructables.com/answers/LED-Math-Help/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif Lord_Tryndamere I want to create a LED grow light but i am having trouble with the math. I have 5 blue LEDs that are 3w( Vf: 3-3.4 v and If:700ma). Now i want to wire these in a series. So if i were to use two of these for example, would it require more volts and the same current. So: 2@3v = 6v @700ma. 
By: Lord_Tryndamere

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Thu, 26 Jun 2014 17:01:04 PDT
video projector won't work http://www.instructables.com/answers/video-projector-wont-work/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif jbaker22 Hello, I have been trying to get a Sanyo Multiverse to work with a 20w chip LED. I may have tricked it's motherboard it into thinking it is powering a bulb. The projector stays on instead of turning off when the bulb was missing. I put the led chip where the bulb was, and turned on the LED on. I saw...
By: jbaker22

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Mon, 2 Jun 2014 18:58:13 PDT
Shift Registers vs LED Drivers? http://www.instructables.com/answers/Shift-Registers-vs-LED-Drivers/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif texpert I am trying to figure out how to program an arduino to control LEDs. Basically, what I have done, is I have made a 3x3 matrix and can program some simple sequences with the LEDs using the digitalWrite and delay functions.  I'm not even sure that this is the right way to do this, I don't think it is,...
By: texpert

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Mon, 26 May 2014 20:37:46 PDT
LED lighting into square shaped tubing. How can I do this? http://www.instructables.com/answers/LED-lighting-into-square-shaped-tubing-How-can-I-d/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif blurhoops I would like to construct clear polypropylene tubing into about a 20 inch by 20 inch or smaller square with led lighting inside for hula hoop performance. It needs to be battery powered and evenly distributed with weight. Needs charging capability and little to no battery gap. Can anyone explain wha...
By: blurhoops

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Mon, 12 May 2014 21:34:14 PDT
Who can make LED Equalizers such as the ones that go inside T-shirts but much smaller? http://www.instructables.com/answers/Who-can-make-LED-Equalizers-such-as-the-ones-that-/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif Chelseamarie237 My boyfriend and I own our own mask company. We used to put equalizers in the mouth piece. They were about 2inchs long by 4 inches wide and were powered by a AAA battery pack. The manufacture stopped making them and we are looking for someone new who could make them or something very similar in size...
By: Chelseamarie237

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Wed, 7 May 2014 11:27:44 PDT
Would a 100 watt RGB led floodlight be as bright as a single color 100w? http://www.instructables.com/answers/Would-a-100-watt-RGB-led-floodlight-be-as-bright-a/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif firestars I'm looking at high power colored flood lights, single color would be ok but the added flexibility of RGB would be great. I was wondering since color changing leds are made of three leds if I set it to blue would I get only a third of the brightness as the same wattage in single color blue?
By: firestars

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Wed, 30 Apr 2014 11:13:18 PDT
How to power my LED Strips? http://www.instructables.com/answers/How-to-power-my-LED-Strips/ http://cdn.instructables.com/FHK/4XGT/HTVDZZSF/FHK4XGTHTVDZZSF.SQUARE2.jpg http://cdn.instructables.com/FHK/4XGT/HTVDZZSF/FHK4XGTHTVDZZSF.SQUARE.jpg http://cdn.instructables.com/FHK/4XGT/HTVDZZSF/FHK4XGTHTVDZZSF.SMALL.jpg afarmer10 Q: How can/should I power my LEDs? Info: I am using 3m of adafruits 144 LED strips and 4m of the 60 LED strips. 144 LEDs             https://www.adafruit.com/products/1507 60  LEDs             https://www.adafruit.com/products/1138 My Power Supply http://www.newegg.com/Product/Product.aspx?Item=N8...
By: afarmer10

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Fri, 11 Apr 2014 23:01:02 PDT
LED DRIVER assistance required? http://www.instructables.com/answers/LED-DRIVER-assistance-required/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif m3ngc I am trying a diy led build. I have 9 3w 4v 800mah high power leds and a  240v AC to 26-39v variable voltage DC 1500mAh fixed  driver. My first question is, if I connect my 9 leds in series =36v leaving 3v drop do I need to limit the fixed 1500mAh current and if so how. My second question, is there ...
By: m3ngc

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Wed, 9 Apr 2014 13:32:22 PDT
max output current of cc cv led driver if i use leds in parallel? http://www.instructables.com/answers/max-output-current-of-cc-cv-led-driver-if-i-use-le/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif bipl12 I was thinking of using some 2w leds which i already have for home emergency lighting setup. I was thinking of using http://www.ebay.com/itm/10-PCS-Led-Driver-For-1w-watt-led-MR16-1X1W-3X1W-led-light-bulb-DC-12V-/191066699095?pt=LH_DefaultDomain_0&hash=item2c7c767557 as the driver of the leds....
By: bipl12

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Mon, 31 Mar 2014 21:16:55 PDT
Can I run 10w 12v leds directly form a switching power supply? http://www.instructables.com/answers/Can-I-run-10w-12v-leds-directly-form-a-switching-p/ http://cdn.instructables.com/F4Y/U8ZQ/HTFI65TF/F4YU8ZQHTFI65TF.SQUARE2.jpg http://cdn.instructables.com/F4Y/U8ZQ/HTFI65TF/F4YU8ZQHTFI65TF.SQUARE.jpg http://cdn.instructables.com/F4Y/U8ZQ/HTFI65TF/F4YU8ZQHTFI65TF.SMALL.jpg reducingmyconsumption Hi, I have a regulated switching power supply with 12vdc 400w output (similar item pictured below) and I need to power around 20 10W LEDs which are rated at 900mA. Can I wire these in parallel directly from my power supply since I know the voltage can't change meaning that the current (and heat) sho...
By: reducingmyconsumption

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Mon, 31 Mar 2014 08:20:15 PDT
random 6 LED light circuit? http://www.instructables.com/answers/random-6-LED-light-circuit/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif lonesoulsurfer Howdy, I want to either make from scratch or purchase as a kit, a 6 LED, random generator.   What I need it to do is circle through the LED's randomly for 5 seconds or so , and then finally light 1 LED up for 10 second or so.  Any help would be much appreciated.  
By: lonesoulsurfer

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Thu, 20 Mar 2014 17:03:32 PDT
Joule Thief Toroid not helping to step up, Why? http://www.instructables.com/answers/Joule-Thief-Toroid-not-helping-to-step-up-Why/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif Arijit Chatterjee Hey fellas..I am having problems with joule thieves especially with the toroid part.... First time I wound my Ferrite Core and the joule thief ran smoothly... But recently I had to unwind it to try other wires which didn't work.. So i again wound up the toroid just like the first time when it used t...
By: Arijit Chatterjee

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Wed, 12 Mar 2014 19:53:22 PDT
Model RR, LEDs on variable ac input voltage http://www.instructables.com/answers/Model-RR-LEDs-on-variable-ac-input-voltage/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif 31cssinc Led's for ac powered model railroading, to replace incandescent bulbs.  Voltage to track varies from 5 to 17 volts AC.  Leds will light up, but what is it doing to them. They do not pop like a flash bulb at top voltage. I've rectified some to dc voltage for lights in cars, the variable voltage se...
By: 31cssinc

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Wed, 12 Mar 2014 15:01:25 PDT
How can I make RGB LED lights change color with a switch? http://www.instructables.com/answers/How-can-I-make-RGB-LED-lights-change-color-with-a-/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif metalshiflet I would like it to have five options: Red, Green, Blue, White, and a pulsing, changing color. What switch can I use and what parts would I need?
By: metalshiflet

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Fri, 7 Mar 2014 06:38:42 PST
how do i connect LEDs to my (electric) guitar that light up as i strum? http://www.instructables.com/answers/how-do-i-connect-LEDs-to-my-electric-guitar-that-l/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif R31N i have had this idea in my head, about making a custom guitar that lights up as i'm playing. i've came up with several ideas, like sound to light... but it picks up background noise. an idea i had, was to do a direct attachment to the pick-ups... but i don't want it to mess with the sound (distort o...
By: R31N

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Thu, 6 Mar 2014 09:24:17 PST
How to get a 44 key IR Remote to work on Rf audio Controller for LED's? http://www.instructables.com/answers/How-to-get-a-44-key-IR-Remote-to-work-on-Rf-audio-/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif RuneSlayer25 I bought a RF Controller and the remote gave me did not have all colors i wanted, and when i bought my LED strip they came with IR remote and receiver and i would like to set it's remote up instead as it had more buttons. But i don't know how.
By: RuneSlayer25

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Wed, 5 Mar 2014 10:39:23 PST
Powering LED strips with a power supply with a number of outputs? http://www.instructables.com/answers/Powering-LED-strips-with-a-power-supply-with-a-num/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif dneishtadt Hi, 1. I have 5 meters of LED strip, but they are actually 5 pieces, 1m each that I want to connect in parallel. The 5m require 12V 48W, so each 1m is actually 48*1.2/5=11.5W Can I get a power supply with 5 outputs of 12W instead of 1 with 60W? Will it make it smaller physically? Is there such a th...
By: dneishtadt

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Wed, 5 Mar 2014 09:36:33 PST
I designed a 30*30 matrix led board can anyone tell me how much voltage do i need to drive whole board? http://www.instructables.com/answers/I-designed-a-3030-matrix-led-board-can-anyone-tell/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif dh5
By: dh5

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Wed, 5 Mar 2014 01:33:49 PST
is this led array right? http://www.instructables.com/answers/is-this-led-array-right/ http://cdn.instructables.com/FW4/9ZMO/HS61BDCM/FW49ZMOHS61BDCM.SQUARE2.jpg http://cdn.instructables.com/FW4/9ZMO/HS61BDCM/FW49ZMOHS61BDCM.SQUARE.jpg http://cdn.instructables.com/FW4/9ZMO/HS61BDCM/FW49ZMOHS61BDCM.SMALL.jpg kturner6 +18V + -||- -||- -||- -||- -||- -/\/\/\- + R = 22 ohms + -||- -||- -||- -||- -||- -/\/\/\- + R = 22 ohms + -||- -||- -||- -||- -||- -/\/\/\- + R = 22 ohms + -||- -||- -||- -||- -||- -/\/\/\- + R = 22 ohms + -||- -||- -||- -||- -||- -/\/\/\- + R = 22 ohms this lay out has the resistor on the negativ...
By: kturner6

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Fri, 28 Feb 2014 12:28:59 PST
74HC574 VS 74HC595 http://www.instructables.com/answers/74HC574-VS-74HC595/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif reckerd Can anyone help me understand when you would use one over the other? I am reading the spec sheets and I am not understanding the difference. I am gathering parts for two different projects. One is making an 8X8X8 LED Cube and the other is making a plaque using 8X8 matrix cubes. The plaque will have ...
By: reckerd

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Fri, 21 Feb 2014 08:58:22 PST
How can I modify this circuit to sequentially turn on LEDs in parallel, while avoiding voltage drops? http://www.instructables.com/answers/How-can-I-modify-this-circuit-to-sequentially-turn/ http://cdn.instructables.com/FB0/02NO/HR0B385W/FB002NOHR0B385W.SQUARE2.jpg http://cdn.instructables.com/FB0/02NO/HR0B385W/FB002NOHR0B385W.SQUARE.jpg http://cdn.instructables.com/FB0/02NO/HR0B385W/FB002NOHR0B385W.SMALL.jpg Shadow Of Intent I have a single pole, 12 throw rotary switch which I want to solder to a set of LEDs so that rotating the switch clockwise lights more LEDs as follows: 1 = 1 Red LED 2 = 2 Red LEDs 3 = 3 Red LEDs 4 = 4 Red LEDs 5 = 5 Yellow LEDs 6 = 6 Yellow LEDs 7 = 7 Yellow LEDs 8 = 8 Yellow LEDs 9 = 9 Blue LEDs ...
By: Shadow Of Intent

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Wed, 29 Jan 2014 07:10:04 PST
8x8x8 RGB led cube build, requesting assistance so I can make it properly. Can anybody give advice? http://www.instructables.com/answers/8x8x8-RGB-led-cube-build-requesting-assistance-so-/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif 'earl I just purchased 600 common anode RGB led's and I want to make a 8x8x8 led cube based off this video and channel. http://www.youtube.com/watch?v=zS5oZPJVh_o I was wondering if everyone/anyone could help explain how it works to me (for understanding and troubleshooting), Help me simplify the wiring ...
By: 'earl

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Fri, 10 Jan 2014 03:29:30 PST
Source for "filament white" 1800-2200K color temperature warm white led's? http://www.instructables.com/answers/Source-for-filament-white-1800-2200K-color-tempera/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif davidandora After literally hours, I can not locate small quantities of warm white led's with what is sometimes described as "filament white" color temperature. Most warm white LED's are a much cooler 3000K. I have found them but only with minimum orders of over $100. Any suggestions? Ideally a 5mm discrete LED...
By: davidandora

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Sun, 5 Jan 2014 15:15:07 PST
How to make a constant 5v power supply from 12v battery for 3 no. of 1watt smd led lights? http://www.instructables.com/answers/How-to-make-a-constant-5v-power-supply-from-12v-ba/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif grs_14 I have lm7805 voltage regulator, 3 nos. of 1 watt smd led 3 to 3.7v 320ma power of each led. I want to use these 3 led in a parallel circuit. so please tell me the resistor value and capacitor value for making this circuit.
By: grs_14

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Fri, 3 Jan 2014 06:37:10 PST
How many resistors and what value do I need for building a L.E.D cube Nightlight 3×3×3? http://www.instructables.com/answers/How-many-resistors-and-what-value-do-I-need-for-bu/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif asimobot I am using a 5V DC Phone Charger as the power source. In total there are 27 leds, green led 5.0mm.
By: asimobot

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Tue, 31 Dec 2013 21:35:50 PST
LED matrix circuit? http://www.instructables.com/answers/LED-matrix-circuit/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif AeroGophers So I am trying to make something like this: https://sites.google.com/site/gradcapmod/   to basically make an LED display on a cap. The thing is, I don't want to program anything, just light up a design, wired with a switch to turn on and off. Most instructions are how to program a display using a mi...
By: AeroGophers

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Tue, 31 Dec 2013 12:29:44 PST
LED Project Help? http://www.instructables.com/answers/LED-Project-Help/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif NoMelsLemon I am working on a project and I would like to build the following item: A single (but bright enough to be seen from a distance) LED light powered by a battery pack that can be either A) programmed and remotely controlled to either be off, flashing at a steady rate, or solid or B) have a reliable en...
By: NoMelsLemon

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Mon, 30 Dec 2013 11:54:06 PST
want to add led "STRIP" lights(30 leds total) as running lights and then brighter for brake lights on motorcycle? http://www.instructables.com/answers/want-to-add-led-STRIP-lights30-leds-total-as-runni/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif DIYer fox Bought a set of 26" side illuminating red led strips and cut them down to two with 9 leds and two with 6 leds (not really important) as all will be wired into the same connections. What i would like to do is have them all on as running lights and then come on even brighter once the brake switch/peda...
By: DIYer fox

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Fri, 20 Dec 2013 22:46:24 PST
led strip? http://www.instructables.com/answers/led-strip/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif wineguru2 designing an electronic pill organizer that will use led's spaced every 1.25 in apart, seven across, a bank of four down. Must be thin and attachable to a consumer ready pill organizer. 
By: wineguru2

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Sat, 14 Dec 2013 10:55:55 PST
Jameco led color organ expansion? http://www.instructables.com/answers/Jameco-led-color-organ-expansion/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif ARGMISTER Heres the color organ http://www.instructables.com/id/Bring-your-Music-to-Light-with-LED-Color-Organ/ http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_2155541_-1 Now I really want to expand this. Do you think it is possible to connect sst relays instead of the leds that are o...
By: ARGMISTER

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Thu, 12 Dec 2013 11:48:26 PST
What is the best way to plug 12v LED rope light in to a wall socket? http://www.instructables.com/answers/What-is-the-best-way-to-plug-12v-LED-rope-light-in/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif ChrisTower I recently got my hands on some 12v 1a 1/2" rope light that I want to be able to plug in to a normal wall socket. I've looked around for adapters but the only thing I've found is generic 12v 1a ac adapters. My question then is: what is the best way to plug the lights in to the wall? Buy the generic ...
By: ChrisTower

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Mon, 9 Dec 2013 21:16:03 PST
Solar powered led problem? http://www.instructables.com/answers/Solar-powered-led-problem/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif ARGMISTER I have an issue with my solar powered lights. I have this solar panel... http://www.amazon.com/gp/product/B001D6GYLO/ref=oh_details_o04_s00_i01?ie=UTF8&psc=1 and a radio shack 12v 5ah battery. The leds arent even pulling 1amp and I have only used them 2 or 3 times. The solar panel claims to have d...
By: ARGMISTER

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Mon, 25 Nov 2013 10:16:43 PST
If I cut an LED strip that requires 12V and 5Amps, can I use a Power supply rated 12V 2.5A? http://www.instructables.com/answers/If-I-cut-an-LED-strip-that-requires-12V-and-5Amps-/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif DanTheDqMan If the strip is cut in half will the strips still require 5 Amps power supply or can I use a LED power supply that is 2.5 amps 12V ?
By: DanTheDqMan

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Tue, 19 Nov 2013 16:46:40 PST
LED Driver Help - 24 Leds, Red, 2.1-2.4 Drop, 700ma? http://www.instructables.com/answers/LED-Driver-Help-24-Leds-Red-21-24-Drop-700ma/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif tartooth Hey everyone Been scratching my head for awhile now about this one. I believe I got the wrong drivers so I'm trying to figure out which one to get. I purchased these http://www.aliexpress.com/snapshot/266728353.html And I got this driver to run them http://www.aliexpress.com/snapshot/266728354.ht...
By: tartooth

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Sat, 2 Nov 2013 06:24:06 PDT
Help with TIP 31 Sound Reactive LED's http://www.instructables.com/answers/Help-with-TIP-31-Sound-Reactive-LEDs/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif cardboarddude I am having trouble getting my led strip to blink to music.  I built this circuit: I have tried this with a battery powered strip of led's and it worked perfectly, but when I connect it to the led's powered by the power supply, it either doesn't turn on at all or is extremely dim. Could someone exp...
By: cardboarddude

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Thu, 31 Oct 2013 11:54:31 PDT
black,red,green and white power cable supplying cree 3led bike light is broken. http://www.instructables.com/answers/blackredgreen-and-white-power-cable-supplying-cree/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif teemandi  I need help identifying which colour goes to which point.There are four points marked A G V B  on the PCB and i need to solder the 4 colours  onto their respective correct points.The cloured cables are coming from the battery and will be soldered on the cree LED pcb.
By: teemandi

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Wed, 30 Oct 2013 06:52:54 PDT
What kind of led to use in cloth? http://www.instructables.com/answers/What-kind-of-led-to-use-in-cloth/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif stevecinstrfme Would like to know what would be a good size/ type led to use to have all over a garment such as a shirt, or pants, or hat etc., and would like to make them flash randomly (possible halloween/ new years/ party outfits, etc.). I like the look and brightness I've seen in the ones that are in the led s...
By: stevecinstrfme

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Sun, 27 Oct 2013 21:56:37 PDT
How to backlight outdoor metal wall art? http://www.instructables.com/answers/How-to-backlight-outdoor-metal-wall-art/ http://cdn.instructables.com/FWT/KLKR/HN8240W3/FWTKLKRHN8240W3.SQUARE2.jpg http://cdn.instructables.com/FWT/KLKR/HN8240W3/FWTKLKRHN8240W3.SQUARE.jpg http://cdn.instructables.com/FWT/KLKR/HN8240W3/FWTKLKRHN8240W3.SMALL.jpg silliou My friend is buying a piece of wall art (around 1.2m x .8m) which is an image of a bird (I have not seen it yet, but lets say it looked like the attached image, it is metal, flat. It is going to be hung outside and they would like it to be backlit, so it is visible at night.  They were quoted $130 ...
By: silliou

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Fri, 25 Oct 2013 20:23:36 PDT
Music LED Sync? http://www.instructables.com/answers/Music-LED-Sync/ http://cdn.instructables.com/FP2/HDMH/HMWVZZT5/FP2HDMHHMWVZZT5.SQUARE2.jpg http://cdn.instructables.com/FP2/HDMH/HMWVZZT5/FP2HDMHHMWVZZT5.SQUARE.jpg http://cdn.instructables.com/FP2/HDMH/HMWVZZT5/FP2HDMHHMWVZZT5.SMALL.gif adarshnarsaria for the circuit in the pic can I use the transitor listed here  instead of TIP31, SMD LED Strip instead of the 4 LEDs, and can I power it with an ATX Power Supply as it also has 12v DC output???? Thanks in Advance.....
By: adarshnarsaria

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Mon, 21 Oct 2013 23:50:47 PDT
Looking for cheapest, simplest way to randomly light multiple led's? Prefer not to use arduino or similar. Maybe 555? http://www.instructables.com/answers/Looking-for-cheapest-simplest-way-to-randomly-ligh/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif stevecinstrfme I am working on a project to sell which will have multiple led's lit at different times. I guess it would be like those old pictures or posters they would sell that had led's in places where the lights might be in a cityscape (windows of skyscrapers etc.), or the taillights or headlights of a car, o...
By: stevecinstrfme

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Mon, 21 Oct 2013 17:19:46 PDT