need help to buidl a single and small rgb flasher or dimmer

​i have a question, how can i make a rgb flasher or dimmer that runs with 3v and as small as possible for a key chain, just one rgb led, if anybody can help me please with a schematic, pcb or something. thanks so much please email me. i really apreciate it, my babys first year birthday is coming in 20 days and i want to make like 30 key chains like that for the kids coming to the little party. thanks so much again.

Posted by alxandre.alzate 2 years ago

Achieving different colors with RGB LEDs

 Does anyone know if it is possible to get brown with RGB LEDs?

Posted by pilferingpanda 8 years ago


Hello  friends! Im  make RGB pov using Arduino,    How to control 6 RGB Led  using  3 transistors?  please helpme  arduino code

Posted by AzamA9 1 year ago

rgb led

Red green blue common cathode light emitting diodes anybody know any cool projects with them? The best ones I found were the hypno cubes and pov's, and some displays were cool. any others? I want to know before I buy a bunch of leds to save on shipping.

Posted by guyfrom7up 10 years ago

rgb with out a microcontroller (beam-ish?)

I have been trying to contemplate how to make a rgb random oscillation, with the option of pressing button 1 for red button 2 for blue button 3 green. with no micro controllers, unfortunately I cant seem to do it most of my concepts run in to problems. any advice would be appreciated. preferably in the more helpful verity. bare bolts and brass tax is the point of this, i will be making a instructable for it if i can figure it out. the led's are common anode.

Posted by CD_tatro 3 years ago

RGB controller issues trying to control RGB LED

Hello, I am trying to control a few 4 pin common anode RGB LEDS. All I want to do is be able to switch between colors. I purchased a 5v LED RF strip controller to see if I could get that to do it but it just cycles constantly between all colors and wont work properly. I am looking for the most basic way to control these LEDS. Everything I have seen on these uses Arduino to control them. And I have no experience with Arduino or how it works for the moment. Radioshack sells the perfect example of what I am looking for. The 5mm "7 color blinking LED" they sell changes colors when the power is cut to it with a momentary switch. I am using 0603 RGB LEDs but would like this same effect or something very similar. The LEDS they sell must have some sort of built in controller in order for it to change when the power is cut? If so what would that kind of LED be called? Thanks

Posted by Zebrah 3 years ago

Arduino PWM and RGB LED strips

Hi.  So I bought an arduino uno, some IRL530NBPF, and 4,3m RGB LED strips. I want to control the strip with the arduino, but can anyone tell me how to hook it up?

Posted by sinding 7 years ago

RGB Led Matrix

Sorry! I am looking on how to make a RGB Led matrix. I have found a lot of them but any of them was a RGB, so the idea is this I need to make a 6x9 RGB Led matrix and make the dots flash in different colors. I know the principle of the led matrix but not of a RGB one. So can you lend me a hand? or a sketch as possible? Thanks for reading. P.S.: Sorry for the bad english I speak spanish lol

Posted by Positive07 6 years ago

Ideas? Arduino controled laser light show with RGB

. Has anyone made or have info on making a laser light show?  I have an RGB module with analog control and would like to build a light show with full RGB control using Arduino. I have found several projects to drive galvos for X-Y control but none so far have included color control. Any pointers, links or suggestions welcome. Thanks. Paul

Posted by paulckruger 4 years ago

RGB LED Sun and Moon

So, I'm working on this thing, its just an idea right now so I won't delve into it too deep, but I want to use a single RGB LED behind a frosted plexi screen as a Sun and another as a Moon, that will move on a clock motor. Could I get a white with a yellow tinge and a white with a blue tinge with a RGB and a few fixed resistors? I'm just wondering if that would be possible. Would I just set the red and green components to 70% and the blue to 100% for the moon and the red and green at 100% and blue at 70% for the sun? Thanks for the help. I don't have any RGBs so I'm just trying to theorize right now.

Posted by mattthegamer463 9 years ago

led ambilight rgb

I am interested in building Dan's RGB led system except where he used sliding potentiometers i want to use 3 light sensors with red green and blue filters. similar to Phillips Ambilight but in addition to behind the tv all over the room.any suggestions?i have limited knowledge of electronics and i do not know how to wire light sensors.a combination of the photos provided.

Posted by Robb 10 years ago

Addressable RGB Strip via USB?

Hi All, Im currently looking into RGB Addressable LED strips for my computer and the only option I can find is the NZXT Hue+ which is riddled with issues. Does anyone have information on how I would possibly control these via USB from inside my computer, or if that makes life complicated, over WiFi but powered from a SATA power cable?

Posted by K20Evo 1 year ago

Help with wiring a rgb light strip please!!

Mokungit 50pcs WS2811 12mm DC5V Input Diffused Digital RGB Wire Cable LED Pixels Module String Light WS2811 IP68 Waterproof Addressable Dream Color Pixels Exposed Light String This is the strip I got, and the controller has different colors!! I just want to know the correct way to wire this so I don't mess it up! Thank you!

Posted by jwolf2655 1 year ago

RGB LED amplifier / power isolater / I don;t know what to call it

So I have this idea.   In my car is an LCD stereo that has several RGB LEDs in it's face around the volume knob, the tuning knob, and a few buttons.  In the stereo's configuration settings, you can choose what color (7 options) you want these LEDs to display, or an 8th option which cycles through colors. I really like the idea of adding other lights to my car, just for geek/bling/rice value/for the hell of it/because I can.  How could I take the signal for one of those LEDs and use it to CONTROL a small circuit which in-turn would POWER the other LEDs I want to add?  I do not want to try to draw enough current directly from the stereo's circuits to power many more LEDs.  I am thinking of maybe 20 more LEDs. A little about me:  I could likely print a board, if I really had to . . . I can solder . . .  I understand basic circuits but have a little trouble with the math behind things like multiple resistors and voltage drops etc. I have worked a little with LEDs before, including RGB. I am over 30.. Let me know what you think? Michael, from "DC"

Posted by DieCastoms 6 years ago

Outdoor RGB LED Strip Failure

Hi all,  I've had quite a modest installation of RGB LED tape (45 meters ish, split into more manageable circuits) around the perimeter of my decking. This uses the commonly available 5050 RGB LED Strip light, the type with the epoxy covering the tape and also an outer sheath to protect it from water ingress.  I had heat shrinked the ends and also applied multiple layers of liquid electrical tape where a connection to a 4-core cable was needed. This has held up well for some time.  After about 2 years, I noticed that some of my RGB LED tape runs were sort of 'corrupting' where a small amount of moisture had got in, and shorted the RGB channels so that no matter what I feed into the tape, it always output white (or some other combinations or colours). Still, I ignored this, as it didn;t bother me too much.  These ran back to a central controller, which did the DMX control and amplification of the 12v single.  Anyway, to cut a long story short: Yesterday I smelt smoke.  I was walking around the garden and I noticed that one of the strips had caught fire, at a single point in the middle, and was burning a hole through my decking!  Again, long story cut short, I put this fire out and looked closer. The strip was so badly burnt that I can't determine what went wrong here.  I'm thinking maybe a resistor burnt out and caught fire? The tape has been running 'on' for quite some time (weeks) so this is a possibility.  Another possibility is that there could have been a short between 12v and ground, which caused heat. Now, there aren't any fuses on the 12v rail (fuse and circuit breaker protecting the 240v side) but I wouldn't have thought that this would protect me from a fire anyway!  I'm interested whether anyone else has had a similar experience or has any suggestions as to why this has happened.  I love these RGB LED strips, use them a lot in my house, but after seeing this, I'm not a little more dubious to keep using them.  I'm an electrical engineer (in the making, at University) and this has stumped me!  Thanks Joe

Posted by joearkay 1 year ago

Color Mixing Cube

Yesterday I was fooling around in Unity 3d (Video Game Development Software), and I created 13 particle systems, that show how red, green, and blue light, mix into white.  Every vertex is a basic RGB color. The colors shown are Black, Red, Green, Blue, Yellow, Cyan, Magenta and White. The colors parallel to each other mix. If you use Unity, and you want the Prefab, I have it for download.

Posted by Super_Nerd 7 years ago

New guy with a new idea

First off, Hi to everyone! I made a VU meter using the LM3914N and RGB LEDs.  My "new" idea is to create 2 modes "VU meter" and "lamp".  I can't figure out a way to do this with a single switch.  At first I though it was simple...Oh just put a switch on the 10 LEDs going into the LM3914 and send it to ground.  WRONG!   Any help would be great! Thanks! P.S.  I'm new to all this.

Posted by Natdog 6 years ago

Arduino controlling 10 RGB groups

Hi everyone! I recently came across the arduino board and I've been playing around with using Python to control the board. I would like to use my new toy to create an Ambilight like setup for my computer monitor. The python script I have created for this does quite a good job and runs at about 15-10 fps! I want to use 10 RGB groups of 3 leds each (3 top/bottom, 2 sides). Since the Arduino only has 6 PWM ports and that leaves me with 5 Digital out ports, I have to multiplex the system. Since I want to use all colors and not just the 7 combinations normal rgb controlled by on off gives me I designed a circuit that would make this possible. The refresh times on the PWM ports have me worries.. (changing to a new voltage) The PWM resistor-capacitor circuit is an option to fix this (I think), it would replace the resistor after the PWM in the diagram. My knowledge on the subject is a little rusty so I was wondering if someone here would like to look at my circuit design and comment on it. I'm using MOSFETS, NPN transistors, resistors and capacitors. My LED strips use 12 Volts (hence the mosfets). In a single setup the mosfets work like a charm! 12V goes to the anode of the led group and the mosfet drain goes to the cathode, which is labeled as LED in my diagram. Tnx Guys/(Girls?)!

Posted by AIex 8 years ago

RGB LED strip help

Hi guys so i'm buying a 5050 rgb led strip and i'm connecting it to my arduino UNO so my question is can the arduino power 2 meters long led strip

Posted by OmarB8 2 years ago

RGB Moodlight

Hello, I am new to instructables and I am not sure about this thing: I made an instructable for a RGB Moodlight, so I was wondering it could be added to the projects of this group. Thanks in advance

Posted by peterrus 11 years ago

How to Replace PC Monitor LED Backlight with RGB LED Backlight?

Hello, Does anyone know how I can replace my monitor's LED Backlight to an RGB LED Backlight? RGB (Red Green Blue) LED Backlighting is superior to W-LED (White LED, which is just Blue LED without Green and Red). I don't even know why the mainstream LCD makers are trying so hard for superior picture quality, when CRT & Plasmas all used RGB light. It's not rocket science: they should just switch to RGB backlights, and replace them when they decay at their different rates. Anyway, does anyone know where I can find RGB LED Backlights for my PC Monitor? I know how to open up my PC Monitor's LCD panel, and remove the LED Backlight, but where can I buy RGB LED Backlights? Does anyone know where I can buy RGB LED Backlights?

Posted by davidwinst 1 year ago

Common power rgb leds

Hello, I followed a great instructable here to make rgb led bars. It uses the ledwiz controller. I wanted to shift it over to an arduino controlling the thing. My main problem is that the leds I have is that they have one power lead, and 3 grounds to control the color. how would I get that to work with an arduino? Thanks ~penguins

Posted by penguins 9 years ago

RGB LED interface with arduino

I need to drive 5 3W RGB LEDs in series using an arduino. The maximum current required is 350mA each for R G and B dyes. and minimum current requirement is 2.4V, 2.4V and 3.5V respectively. What should I use to interface the LEDs with my arduino as the output current of each arduino pin is 50mA maximum Thanks in advance

Posted by pratham123 4 years ago

Can I wire RGB LED flex ribbon with cat5?

I made 4 custom light boxes using rgb led flex ribbon, can I power and wire these using cat5 cable or is that too thin for 6 amp 12v power supply these things are going to? the longest run from one box to the powersupply will be 20 feet

Posted by Negativecreep0 8 years ago

Arduino: RGB leds animation library

Hi everybody! I've developed a a CSS3 inspired, keyframe based color animation library for controlling RGB leds with Arduino. It basically allows you to program custom RGB light patterns by specifying a duration and what color to display in a specific percentage of that duration, without caring about transitions between the colors. I've put a small demo video here and the library comes with quite a lot of examples. I'd love to hear any suggestion and comments about it! Didn't actually do it for christmas... but I guess it can come in handy these days :) It's here on github Cheers!

Posted by amicoleo 4 years ago

A lamp from RGB LEDs

Hi, I'm want to build a lamp from 63 RGB LEDs. I want to be able to change the intensity of each color. Is there something in my schematics that should  be changed, for example do I even need the resistors after LEDs since I have the potentiometers. I think the values might need to be changed. The switches before resistors are to eliminate that color if the potentiometers won't do it. There should be also a main switch after the power supply.. Do I need anything else, so that it will work and to it will be safe? A bit offtopic, but if I would only use one color LEDs, would it be better to connect them to parallel or series?

Posted by goljat 4 years ago

Mini Mood Light v1 Kit

The Mini Mood Light is a small interactive and reprogrammable coloured light generator circuit.  The mood light consists of a Texas Instruments MSP430 micro controller connected to two RGB LEDs, four buttons and some supporting components all on a custom circuit board. Detailed assembly instructions are available on Instructables. The kit is available from for €20 and posted worldwide from Ireland for €2.

Posted by robert.fitzsimons 7 years ago

Arduino LED Clock RGB?

This is probably too big of a project for a first timer.I do not own a Arduino but plan to get one in the next few weeks or so or whenever Make releases the Getting started with Arduino KIT Again. I'm planing my project so that I can work on it with the fewest problems. I had the idea from 5volts fire extinguisher striking clock. My question is that is there a way that I can use RGB LEDs? I just wanted to use RGB LEDs instead of 7 segment displays but use the same layout and have a nice color fade with the time. Look for his schematic and code.The schematic shows a easy way to hook up a 7 segment display to an Arduino. I'm just not sure how to control another color. I was thinking maybe 3 BU2090's going from pins 12 an 13 and using the Arduino to control the power going to them. 5volt suggested triple multiplexing but I'm not too sure on how to do that. Also I'm not sure on common anode or common cathode LEDs?(I don't want to use 54 of each color.)As for clock face I was thinking like in the picture. 2 LEDs per segment, 8 for the colon. That is a 24"x12" box using 10mm LEDs. Center to center LED height is 7.125"Any help would be appreciated I have hit a snag trying to figure this out.

Posted by Rob K 9 years ago

Solar powered RGB led strip

I want to make a solar powered rgb led strip. My thought is something like christmas light. I would like the lights to have effects like fading, blinking, and chasing. What equipment do I need and what steps do I have to take? I was recommended to use arduino and have started looking at that and would like to use that as it seems easy to use. The led would be RGB led so that I can change colors and stuff like that. I was thinking of having 2-3 independent "lines" which would make up one strip. For example, one line would be red and the other would look green. it would look like this: r-g-r-g-r-g-r-g with r meaning read and g meaning green. I dont know if it would be best to run each line in serial or parallel. Then I would like to provide power for the whole strip with a small solar panel. Sort of like the ones used on solar lawn decorations or solar motion sensing security light. Hopefully I wont need a big solar panel and a small one would be enough to power all the leds that I want. I'm thinking of having about 100 led per strip so 50 led per line. After this is done I might want to do a strip of 200 led. And finally, I would like for the light to turn on and off automatically at dawn and dusk.  Is anyone willing to help me out with this project? I am a newbie and need lots of help.

Posted by erickarlop 6 years ago

Multiple LED Bar Scoreboard

Hi everyone, Me and a friend of mine would to make a scoreboard which can display the score of around 70 different people. The way we would like to do this is by making 70 individual led strips which represents a person. Each strip has to contain about 100 leds (so the maximum score is 100). We would like to be able to set each persons score individually from anywhere between 0-100. Preferably with as little knobs as possible.  What do you guys think is the easiest and cheapest way of doing this?  We were thinking about a system with a arduino or some kind of controller and a chain of LED Bar Graphs as shown in the link below. We are not that experienced with electrical components so we would like to have some help with that!   Looking forward to hear some of your ideas! 

Posted by TDDG 2 years ago

Arduino with multiple RGB LEDs

Hi, I am pretty knew into the Arduino world. My problem is trying to make multiple RGB leds ( work with the Arduino. Although it would be be easy enough to use a single RGB led, I want to use multiple RGB leds. My RGB led uses 3 digital pins with pwm but since i am using an arduino pro micro with 5 pwm pins, I can only use 1 led. I have found that the max current per pin is 40ma but shouldn't exceed 20ma so therefore you couldn't put 2 leds. So my question is, how would i power more than 1 RGB led? Any help will be appreciated. Thanks!

Posted by Isaac Emery 11 months ago

Arduino motor shield to control RGB LEDs

I was wondering if anyone has tried to use a motor shield to control 12v  RGB LED strips? It seems like it would work but I haven't seen anyone try it. So, if anyone would like to step in and stop me before I fry my arduino and motor shield, I would be very grateful! Cheers

Posted by emikayee 4 years ago

Lighting with RGB LEDs

Hi all. I am wanting to get into using led lighting for long exposure photos (for the purpose of thermal imaging) and I am looking at RGB LEDs for providing the colour. My question being, should I try finding LEDs that have similar light output in mcd or stick with RGB LEDs? The reason I am asking is when I am looking at specs, the green seems to be 2 to 4 times as bright. Is this an issue?  Also, the RGB LEDs seem to have a much wider viewing/ lighting angle.  I am not sure where to go from here. Any help would be appreciated.  Thank you all very much for the time.  Professorred

Posted by professorred 5 years ago

New to electronics, RGB led's help!

First off, let me just say this website and all the great instructables have inspired me to get into electronics. I recently ordered the Arduino Projects Pack from make and have been creating simple led projects for myself. I'd really like to step it up for christmas and have an idea that currently I do not have all the knowledge to complete. My parents kitchen was recently renovated and a brand new cabinet with frosted glass panes was installed. I would like to install 12 RGB led's controllable by on/off, speed of colour change, and by colour itself. If anyone has the time a basic start to finish guideline would be extremely helpful to wrap my head around the whole process, and if I had any questions we could go into more detail. Is the Arduino Duemilanove the right device to be using? Programming is very new to me and any sites that help with that would be great. Thanks so much for your help in advance!!!!

Posted by metabolism! 8 years ago

3w common anode RGB LED circuit?

Hi all,Does anyone have a link to a circuit diagram for a common anode led? Here are the specs:Red: 2.5V ~ 3.0V, 350mAGreen: 3.2V ~ 3.8V, 350mABlue: 3.2V ~ 3.8V, 350mAI picked one up and didn't realize the effects of common anode v. common cathode :/ I can run it with drivers from one of the instructables floating around, but I have to use totally isolated power supplies (i.e. one separate battery for each color). I realize that I could use PWM for them, but I don't have the tools to program and burn a chip right now.Soooo, either a circuit that can sink current (I believe that is the correct terminology) or some way to isolate power between the 3 colors would be much appreciated.Here is a link to the led I have:

Posted by homba 9 years ago

RGB 8X8X8 LED Cube Base / Driver PCB by SuperTech-IT

I do sell the PC Boards for my 8X8X8 RGB LED cube instructable. Prices fluctuate depending on demand. Check for current prices and links to my parts supplier for the components for the boards. I don't bundle the parts because the supplier can ship the parts at my cost with little to no shipping charges. Please see my instructable at for more information. PC Boards for the less popular but still way cool single colour LED Cube are also available there.

Posted by SuperTech-IT 3 years ago

rgb led uv usb light that responds to music for a DJ

I wanna build a light to plug into my laptop powered by usb thats UV led's to light the keyboard and have either changing to red light or multi-colored lights. Or just keepin it UV and strobing

Posted by ddude04 9 years ago

Square Capacitive Touch RGB LED Buttons

I'm having a hard time finding parts like these - is anyone aware of an RGB LED capacitive touch button?  Preferably with the light and the touch sensor separate (DPDT-type, perhaps?).  I'm looking to make a physical prototype of a mobile puzzle game I'm working on, and this would be an ideal input method. Thanks! -Jesse

Posted by xepherys 3 years ago

how do I control brightness of RGB Led using PWM module

Hi,  I'm new to using Programming integrated circuit (PIC), I just acquired a PICKIT 3 made up of PIC18F45K20 Microcontroller. I'm need help understanding how to control brightness/ dimness of a RGB  led using PWM. The problem here is most tutorial I've come across only explain how to do this using one or more of the same type of led (same color). I need a tutorial explaining how to control brightness of red green and blue and whatever dimness state (say 20%) is, it remains in the same brightness when i pick a different color. if someone can direct me to a tutorial on how to configure RGB (not just LEDs) and using PWM. that would be much appreciated.

Posted by nigho4real 3 years ago

Wearable RGB LED Strips (with NeoPixel strips) added to Rave Hat

Hello Instructables community! This is my first post so I hope this is the proper forum to post this question in.  I am looking to add some RGB LED strips to a fluffy hat I got a while back. Im very familiar with arduino (second semester Electronics Engineering Tech @ NAIT), although I've never made any sort of wearable project before. I was looking into the arduino FLORA, though they almost always seem to be sold out. I have already configured (on breadboard) the circuit for sending messages from my phone to the bluetooth dongle, and thus changing the colour of the RGB strip seems to work (later on ill program designs and patterns). Where I need help has to do with batteries and how to determine what will be needed given  I am using 2  8light  NeoPixel rgb strips and a HC06 bluetooth module. I was thinking about soldering the circuit onto a circuit board, cutting it out and putting it in a case, though with an arduino nano, bluetooth module, and batteries it will likely be cumbersome and uncomfortable to mount on the hat. I know I need 5 volts to power the arduino but what kind of batteries should I use? I was reading about thin lithium ion ones with the FLORA but as expected they are all sold out.  If anyone has any ideas or suggestions please share them with me as I was looking to have this project completed before the 6th of May. I can attach images and whatnot later as for whatever info is needed to help me integrate these lights onto my hat. Thanks.

Posted by HEADTRiK 2 years ago

running LED strip on ac

So i started working on a new project with RGB LED strips and I needed a power source, I dug around my box full of wall warts and saw one that said 12v 3000mA and thought ''perfect!''. I never hit the wires with my multimeter, just used a spare chunk of led strip to figure out polarity.. Anyway, plugged a line into my strip and into my LM7805 and blew my voltage regulator, only then did I look at the power supply and notice it was 12v AC! So to my question (sorry for the long winded intro) How are my LEDs working with AC power?? I switched the leads and they turn on with either line attached, so its obviously alternating, but how could these turn on at all?

Posted by emikayee 4 years ago

Twinlking LEDs?

Hi there. I need to know the code to program about 12 white LEDs on arduino for making them randomly twinkle or something in that nature. I'm currently working on a Disney inspired project in which I recreate one of their firework shows on a model of Sleeping Beauty Castle i made. At points in their shows, there are scattered bright LEDs on the castle that twinkle randomly and fast. I want that effect on my castle too. I also wanted to know how to program a tri color LED strip that i can use to recreate lighting in the show too. Any help is very appreciated! Thanks!!! -Ray

Posted by ray33_ 5 years ago

Looking for some clarity on 1w led power

I am having a hard time working the math and figuring out exactly what I need so I thought a question to others might help. I am trying to determine the best way to power a led light.  Here is what I am trying to accomplish.   I have 12"x12" box that will hold 4 round circuit boards.  Each board has positions for 9 1w leds.  3 for red, 3 for green, and 3 for blue.  Each color is in series.  My goal is to use a 12v power supply for each box.  So we are talking about trying to power 36 1w leds all together but they may or may not be all on at the same time.  The box will be dmx controlled by a computer so that I can adjust the 3 leds in each color on each board.  So its possible that I might only have 1 color on 1 board on for example.  Or I could have one color on all 4 boards on (12 leds) at any given time.  Or they could all be on. My led specs Red (610-630nm):DC Forward Voltage:2.2V~2.6V  Forward Current: 350mA green (510-530nm):DC Forward Voltage:3.2V~3.6V Forward Current: 350mA blue (460-465nm):DC Forward Voltage:3.2V~3.6V Forward Current: 350mA  So a couple things that I am having trouble with.  I know that I can power this with 12v using a high amp (15) source but then I need different resistors with high wattage ratings for different colors I would think?  That seems like a lot of power wasted.  So then I can go with a constant current driver but I can't seem to find one that would apower that many leds at once.  Do I need to do two constant current drivers?  Is there a better way?  and what about the fact that each color on each board may be on or off at various times?  Basically using the dmx controller to colorwash the different corners of the 12 x 12 box.  Will that affect the power drawn and change the supply that I need? Thanks

Posted by joecolafrancesco 4 years ago

color changing LEDs -not RGB

You know how you can buy RGB LEDs that fade between colors?  I'm looking for something along those lines, but with other colors.  I'd found a site once that had some, but I lost the link.  I think it had like purple/yellow/orange and other crazy colors, and I'm desperate to find these types of lights again.

Posted by aliasjanedoe 4 years ago

how can i make a rgb controller for HHX-385-50

I need a schematic  of controller for module  HHX-385-50 anybody  can help me?

Posted by gabyh 6 years ago

3-channel RGB LED Color Organ

Pretty much I want to make a 3-channel color organ and hook it up to a single RGB LED. I'm really not used to analog electronics, but I'm pretty sure this could be achieved with a single quad op amp IC. Seeing as I would much rather trust your guys' expertise over my lack of said knowledge, I thought I'd ask the experts. I did get a schematic in Multisim, but I'm really not sure about the functionality.

Posted by agent 7 years ago

Howto choose RGB leds ?

Hi, I need to buy some nice looking RGB leds. What I want is a led that can be turned pink, yellow, green, cyan, magenta... whatever. What I have received are leds that project three different beams, one red, one red, one blue, making three different colored spot, but do not look like one homogenly colored led. So my question is : -How to now from the spec if the led will look nice or will look like the one I already have ? -Where to buy 25-50 nive rgb leds for a fair price ? Regards, tReg.

Posted by treg 9 years ago

Lilypad RGB led pwm help

Hi everyone, I have started working with my new Lilypad Arduino and some RGB leds.  I have been loading code and testing 4 RGB leds (common anode) which I have set up in parallel across pins 11, 10, and 9.  While powering the lilypad by usb the leds cycle through all colours (which is what I programmed it to do).  Unfortunately, I have a problem when powering the lilypad by  this power supply. When powered by the power supply the only colour that lights up is red (pin 11).  Can anyone suggest anything? 

Posted by Br3ntg33k 8 years ago

RGB LED Mixer Schematic

Hi, for the past couple of months, I have been searching for a RGB LED mood light controller, but so far, all of them require a PIC(Programmable Integrated Circuit). The problem with this is that The PIC, the PIC Programmer, and the IDE for some reason wont work together(even though they are all from the same company). So recently, I thought that it would be easier to just make a color mixer, that controls each of the RGB channels individually with a potentiometer assigned to each. But, I can't find a simple one. So I made my own, but I would like to ask the Instructables community if they think it will work. Thanks ahead of time :) Here is the schematic:

Posted by metrogdor22 8 years ago

IR Cake.

Hello, Some friends asked my wife to do a birthday cake for a girl of eight years. With her ‹age she is crazy about princesses. Well, what came to mind was that despite having done many projects with Arduino i had never applied electronics in a cake. So we decided to join forces and add some light (RGB LED) and movement (DC motor controlled with an L298) to the cake. Here is the link to the video:;

Posted by pmartins4 5 years ago