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RGB POV Answered

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

Question by AzamA9    |  last reply

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.

Topic by guyfrom7up    |  last reply


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

Topic by AzamA9  

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

Topic by peterrus    |  last reply


Hi, sorry if this is annoying, but I really need these. I have a school project where I'm using RGB LED's (I'm also going to publish on instructables the steps), but when I ordered from SparkFun, I forgot 8 of them. Is there anyone that has 8 RGB LEDs that would mail them to me in a standard letter envelope soon so I can get them in time. Otherwise, I wouldn't get them until next next Monday. I can pay you with PayPal, and I'm getting a ton of AVR 20- and 8-pin microcontrollers, so I'll gladly send you some, I'll even pre-program them if you can't! (The 20-pin one is used in that new Make kit!) I'm really thankful :D

Topic by zachninme    |  last reply

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.

Topic by Robb  

RGB Light strip

Situation solved-----thanks for the advice!   Thank you, Kyle

Question by hunter-glass    |  last reply

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

Topic by Positive07    |  last reply

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

Topic by professorred    |  last reply

RGB led help? Answered

So i picked up an RGB led at radioshack and when i got home, instead of having 2 pins like normal leds, or 4 like some RGB leds, it had 3 pins, and im not sure what to do. I mixed and matched the  pins with ground and positive wires until it lit up, but it just ran through a cycle of changing colors then stopped and doesnt light up again unless i disconnect the led and connect it again. And as far as i know, the one pin not used in this cycle doesnt do anything. So is this all the led does or is there more? P.S. i wasnt using a potentiometer or anything, just connecting it to power.

Question by texpert    |  last reply

RGB Potentiometer help!

Hey guys and girls, I've got a question! I've got 3 voltage regulators set up in parallel, wired to output 3.27V @ an amperage that I don't know (for some reason I can't get a reading on my e-meter) Anyway, The outputs from those 3 regulators are going to 3 pots, which in turn go to a set of 3 LEDs, 9 in total (3R 3G and 3B). My problem is that those pots have a max resistance of 2k ohms, and that the LEDs aren't shutting off when the resistance is maxed out. Can you guys find a way to make the LEDs shut off, yet still go on at full blast when the Pots are open? Thanks, -Josh

Topic by T3h_Muffinator    |  last reply

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.

Topic by alxandre.alzate    |  last reply

Were can i find buy or build a 9 rgb driver/controller 27 channel 9 group? Answered

I have a 9 rgb panel controlled with a regular controller with the ir remote. I would like to do something more nice. Something like this : I don't know if its possible to recreate the same thing. Please give me your opinion. Thank you -Gabriel

Question by gjanho    |  last reply

RGB-LED with 6 legs? Answered

As far as I know, RGB-LEDs have 4 legs: 1 common cathode and 3 seperate anodes (or vice versa). Santa Claus has left me a RGB LED with 6 pins. Now I'm confused and he has left the country! Can anyone help and explain this to me?

Question by bertus52x11    |  last reply

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

Topic by OmarB8    |  last reply

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.

Topic by mattthegamer463    |  last reply

RGB LED Ring Light Answered

I want to build a RGB LED Ring Light for my Photography sessions. I'm going to order 20 RGB LED's and i want to make it as simple as possible. 3 Potentiometers to control RED / GREEN / BLUE Values. What would be the best way to power 20 RGB LED's? Still wondering if Im going to use a Microcontroller or just directly feed power thru the the potentiometers and to the LED's. Thank yoU!

Question by SgtOneill    |  last reply

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

Topic by penguins    |  last reply

RGB LED controller chip? Answered

Does there exist an IC, which can flash RGB LEDs? I really like auto-flash LEDs, but I would like to have several LEDs flash (and change colour) in sync. But auto-flash LEDs, have different flash rates. Is there an IC, which can flash several manual control 4-pin RGB LEDs???

Question by R0B0_Ninja    |  last reply

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

Topic by pratham123    |  last reply

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?

Topic by goljat    |  last reply

RGB LED Strip matrix?

Can I use connected RGB L.E.D. strips in rows to make a animate-able matrix? And what program do I use to animate it? I'm working on making a deadmau5 mask that lights up, so it has to be a portable unit as I would like to wear it to shows. Thanks :)?

Question by downhillwondrboy13    |  last reply

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.

Topic by Rob K  

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!

Topic by Isaac Emery    |  last reply

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.

Topic by aliasjanedoe    |  last reply

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.

Topic by treg    |  last reply

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:

Topic by metrogdor22  

RGB LED strip quiestion :)

Hi everybody, I saw a tutorial on how to make led light-bulb , , this one. I have a led strip which i can use, the only problem , the strip is RGB , and i want it to give of white light. i don't have a controller for them, and i don't really want to use one. So my question is : can i wire them in some way to give of white light ? Thanks.

Topic by maniak.loop    |  last reply

Power RGB LED help!

I wonder if anyone could advise me as a newbie (blush)!I have just bought a self contained RGB controller with PWM'd outputs: I want is to use this for the lighting in a vehicle (12 - 14.6V). The LEDs I have looked at and bought one for testing are: - the vehicle has a removable rear cabin leaving only the front cabin LEDs connected at times. I will need say 6 - 7 LEDs for the rear cabin and 2 - 4 for the front cabin depending on eventual light output.Should I drive these LEDs with constant current drivers for each colour? Will they work with the PWM output of the controller?I understand switched regulator type circuits won't work with the PWM output?I guess I would need several contant current regulators to power the array but am struggling on how many and how best to connect them?!?Thanks in advance!Chris.

Topic by machineage  

rgb led video panel

Hi i am trying to fine some one who can help me i am trying to make a video panel from tri color matrix tiles i need it to work with a composite video feed i have a processes to do the matrix of the wall i just need to make 1m x 1m panel and then i am away if you have any ideals i would love to hear them thanks for your time justin

Topic by vidscreen123    |  last reply

Achieving different colors with RGB LEDs

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

Topic by pilferingpanda    |  last reply

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.

Topic by CD_tatro  

RGB Led lighting design help?

I have a project that uses a programable RGB Led flex light strip in a tube , I have been able to install that with no problem. What I need is at the end of the tube I would like to have the light project outward from the end , the problem is the flex strip can not be bent to go around the inside diameter of the tube which is about 2 1/2 inches. I was thinking if I could find a circular PCB that I could install RGB Leds into and then fit that into the end , this would fix  my problem. Any other suggestion would be helpful. Thank You! David Ciciotti

Question by artful instruments    |  last reply

controlling 100 rgb leds from arduino?

Hey there i got 100 of 5 mm rgb led diodes. so i want to run them as string lights. so can i do it via arduino? if it is possible please tell me how to do it. thanks

Question by uditha mihiranga    |  last reply

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

Topic by Zebrah    |  last reply

I read about a 2-pin RGB LED that alternates between colors? Answered

Not sure if they exist, but I'm interested in buying a few if they do.  Supposedly the controller circuitry is in the LED package itself and alternates between colors every couple of seconds.  Does this exist?

Question by Spaceman Spiff    |  last reply

How to make the voltage of the RGB LED's green and blue higher in this circuit?

So I have two 5mm RGB LEDs. In my schematic diagram, RGB LED 1 is common cathode, while RGB LED 2 is common anode. My LEDs config is this: Forward Voltage: 2.2V (R), 3.2v (G), 3.2v (B) Forward Current: 20mA I think it's the same for both? Of course when I send data from the PIC pins, one will turn on and the other will turn off. I used the resistors for current limiter. Please refer to the photos, when RGB1 is on (RGB2 off) the voltage are ok. 2.2v, 3,2v,3.2v RGB respectively. But when RGB2 is on (RGB1 off) the readings are 2.7v, 1.7v, 1.7v. It lights up in proteus. In hardware, the GB of LED2 will be dimmer right? or is this just ok? How do I increase the voltage here without affecting the current much. The current readings are also in the photos by the way, 16mA is ok I think. I'm not very good with circuits so can somebody please give me the computation for increasing the voltage? Thank you. I'm trying to understand how it works. Any suggestions, criticism is ok LOL. Thaks! ^^

Question by worthyrabbito    |  last reply

Anybody Iis knows how to do amood rgb lamp thermo-controlled?

I want to do a light lamp, and configure it to change color with the temperature of the room with smooth transitions. We can setup it to light in blue with 18ºC or less, orange with between 19ºC and 22ºC, and red with 25ºC and more for example. Thanks

Question by Niord    |  last reply

How can I change the color of a RGB LED with the push of a button (i.e., push once for red, again for green, etc.).

I have to laugh when I see the prices of flashlights that have multiple LED colors. $50 for a headlamp with 6 RGB LEDs?  Really?  I have seen "Buy It Now"s on eBay that have 50 pcs of RGB LEDs for ~$17.  Besides, the fun is in building one myself.

Question by CasCom98    |  last reply

Can someone help me with a circuit? Answered

Hi im planning to make a light bar out of rgb leds. the basic idea i have in mind is that there will be a row of 10 rgb leds. the circuit will have a variable resistance for each channel ie red,green,blue. by varying the intensity of each channel i will be able to produce different colors.  now the major issue is how do i connect the leds in series or parallel,which will be better to use with variable resistance. and how should i make the circuit so that i have one variable resistance for each color which controls the intensity on all 10 leds 

Question by cfrek    |  last reply

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?

Topic by sinding    |  last reply

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?

Topic by K20Evo    |  last reply

Arduino RGB room lighting help!? Answered

I have been looking around for what kind of transistor, mosfet, what have you, that could take in the power from the power supply of 12V 3A, and take in the PWM signal from an arduino to adjust the brightness for RGB led lighting I have in my room. I know there are a few ways, but I would like to know what the basic parts I would need, transistors, resistors, capacitors, to get this going. Any and all input would be awesome. Thanks!

Question by AzurusNova    |  last reply

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!

Topic by jwolf2655    |  last reply

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

Topic by paulckruger    |  last reply

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

Topic by joearkay    |  last reply

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?)!

Topic by AIex    |  last reply

Controlling 10 RGB LEDs with three pots(with out a microcontroller)? Answered

hello i was just wondering if it was possible to wire 10 rgb leds together run all the red leads to one pot, the blue to another, and the green to the third, and have all of the leds colors controlled by turning the pots. Any information would be helpful. I am intending to use this as lighting on my head board in my room.  Id be using 5mm UltraBright RGB Tri-color LEDs Thanks to all who reply.

Question by the seaker    |  last reply

how to make a cheap programable rgb led tube light in india?

How to make a cheap programable rgb led tube light in india? which can be conected to 230 v ac supply................... actually i want to connect 100-500 leds.plz tel me formula with wich i can change my resisto nd capacitor etc specification according to the number of rgb led. thnk you

Question by japanjot    |  last reply