Ambilight controller

Hey guys,has any body tried the ambilight controller like the one here ==> http://www.hacknmod.com/displayMOD.php?hack=990the link for the controller points to some weirdly languaged (hope thats a word "languaged") site but with no content. i am preparing my comp for fragapalooza (canada's largest lan party) so if any one has done/looked up this mod, please point to a schematic for the led controller...the controller is connected to a pc with a serial cable and has many outputs to connect chains of leds plus i think there is another power supply to power the leds (as the chains of leds are long)...any help is appreciated...note: this is a multipost to produce results efficiently...i hope...***update: nothing after 3 days at bit-tech or fragapalooza.com...:(

Topic by Slisgrinder 10 years ago  |  last reply 10 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.

Topic by Robb 11 years ago


Please help! How do you make a momolight, ambilight, etc.? Keep in mind I know nothing about electronics!

Would somebody please tell me how to make a momolight, ambilight, or whatever you want to call it? I know NOTHING about microchips and all that stuff. I just want a simple explanation on how to do this. The best thing would be if you could point me in the direction of a pre-build arduino controller, led strips, and programs to run it. Please help! I don't know what I'm doing and it's so frustrating (tutorials I've found absolutely suck)!?

Question by cptnsmelly 8 years ago  |  last reply 7 years ago


Trying to turn on and off leds with tv usb

I have LED lights in the back of my tv ( ambilight ), but they stay on when the tv turns off . What I am trying to do is to turn off with the USB on the tv with a relay . I'm thinking if it is possible to use the 5v from the tv usb to power the relay so when the tv stars it gives power to the usb , starts the relay, that is connected to the "+" of the leds and makes the connection to turn on the lights. My question is i'm not a electronic guy and I don't know if it will damage the tv or the lights . should i use something else like a diode? This is the relay i'm using https://www.amazon.com/Songle-House...2403297&sr;=8-2&keywords;=songle+srd-05vdc-sl-c

Topic by pastos 1 year ago


Can someone give my PCB design a once over before i etch???

Hi everyone, hoping someone can help me here. I have designed a pcb in expressPCB and was wondering if someone with a bit more knowledge and experience could give it a once over for me.  I just want to be sure there are no errors before i go away and etch this. The design is based on a 30 channel ambilight tutorial that is here on instructables.  It uses two TLC5940 chips that are connected to an arduino.  I have left the arduino pins on the design unlabelled as they connect slightly different on each arduino (mine is a mega 1280). Here is the design.  Please be gentle, i am just starting out with pcb design and have no breadboard at the moment. :)

Topic by maddoc666 7 years ago  |  last reply 7 years ago


how to fix permanently unstable and stutter LEDs strip 2812b in my Arduino ambilight project?

Why after several weeks with my LED strip (2812b) some LEDs tends to stuck or stutter and with them the rest of the strip (up the din stream)? This mostly happens under white light. And after several weeks of use.  It seems like I never can enjoy them without worries of led slaving... You replace the cultprit enjoy some time and than the problems starts again. Also whenever I open the strip I put ambibox options on colors dynamics than they stutter for awhile until they warmup. then I switch the option on ambibox to screen capture for the rest of use, where under white light they stutter again( I guess white withdraw the max current and this cause the din line to "crash") i have the wires, resistor and cap connected appropriately following the tutorials online.  The V shows around 4.7 and the power connected to two places as I use 160 LEDs with 5V 10A PS.  hope someone can help thanks for your time

Question by TalT4 2 years ago  |  last reply 2 years ago


is there a fix to my ambilight 2812B endless malfuncion?

I am using ~170 LEDs (2812b) with a 10A 5V PS. the power is connected to two parts of the strips due to voltage drop that results in a yellowish white color, close to the end of the strip. I also added a 1000uF 6.3V Cap on the PS and a 470ohm Resistor on the Din starting point. GND connected to the Arduino and using Ambibox software. after a few weeks of usage and especially when turned on, the LEDs flicker or stuck on a certain color up until led (x). few minutes later it overcome whatever problem it had and works regularly. Alas, on white color (guess when it consume the max current) it start to flick again mostly on this led(x) again. of course, I replaced led(x) and led(x-1), enjoy a few weeks of the Ambilight project working perfectly and then another led(y) want my attention and again and again.... should I replace the whole strip? am I using too much current? is it a known issue?or there is a galaxy where these leds replacement slaving don't occur. thanks in advance

Question by TalT3 2 years ago  |  last reply 2 years ago


Controlling ws2815 from raspberry-need a little technical help

Hey guys! Im pretty new to this stuff. As part of an ambilight “project” im trying to use ws2815B with a raspberry pi3b+ I use a 12V 20A (meanwell) psu for the leds and an raspberry 5.1V 2A adapter(bought it because new rpi hated everything else!). So powering seems sufficient. 12V is stable. I already managed to get the lights working somewhat. Even video capture works “fine”, so the lights are okish and delay isnt “that bad”. However i managed to fry the gpio18 on the pi... I dont know what caused it for sure - but i found a broken 12V cable to the strip. Maybe that...or... My new rpi also keeps hanging a LOT when the leds are attached. I can still push buttons and try to restart with ctrlaltdel(which sometimes works sometimes doesnt) but completely hung(instantly loses network connection and only ctrlaltdel does anything), although colors still work on the strip as the video capture captures different image. So hyperion is running. First few leds are off or look like dead pixels. The Rest shows the right colors. Can this hanging and erratic behaviour be because of different logic levels? If so which logic level converter should i be using? Ws2815 is 12V but it works as mentioned above with 3.3v logic from rpi with some errors. If i bring it to 5v will it be enough? Or 12V logic level is needed? If logic level is not the issue, then what else? Thanks a lot for any input :)

Question by ferenc.lippai 5 days ago  |  last reply 5 days ago


How to use HDMI Receiver/Transmitter IC to create intermediate device ? Answered

Dear ALL, In the beginning Here're 2 links for something similar I found while searching. 1) arduino.cc/forum/index.php/topic,142845.0.html 2) www.overclock.net/t/1347100/diy-rgb-ambilight What I wanted to do is to Create "In Middle Device" between Video source (DVD or gaming console) & Video Receiver (HDTV). All What I want is to override some of the data sent/received between them. Like the required resolution, image width & height, Audio & so on. Here's an example scenario hoping to make things clearer: Assume I have DVD Player & I have 2 "LET TV" screens. Now I want to split the video images sent from the DVD player into 2 for the 2 screens. Got the idea? it's like extending the screen. Besides I want the data sent from the TV in this case I need to define the width & height of the tv as both TVs together! if you get what I want! I found a lot of things online .. here're some links. But I just need some guidance from those who know more about HDMI, video processors! 1) processors.wiki.ti.com/index.php/TI81XX_PSP_HDMI_Driver_User_Guide 2) processors.wiki.ti.com/index.php/Sii9022a_HDMI_transmitter_driver Thanks in advance, Kind regards

Question by tdk4 6 years ago  |  last reply 5 years ago


WS2812b strip stopped working,what could be the possible cause? Answered

Hi, I'm using a 1m ws2812b (30 led/m) strip for my ambilight setup with adrilight, using an arduino mega. I cut the 1m strip into 5 smaller strips  ['data direction as per this description':  (5+5 leds in bottom) -> 5 leds at the left side -> 10 leds at the top -> 5 leds at the right side) ] and soldered them together, rechecked everything and installed it on my monitor. I'm powering it with a 5v 2a power supply and everything was working good for 3 days. Suddenly, the strip stopped responding to any data input from the arduino. Only the 6th led of the 2nd strip at the bottom lights up with 'green' colour as soon as I turn on the power adapter.  I tried using Adafruit neopixel rgb strand test as well as fastled library's sample codes but none work any longer(they were working perfectly prior to this sudden failure). It's as if the strip doesn't care that the arduino is connected. The single led (6th one as per data line & 1st one as per divided section, on the 2nd strip) works when connected to the power adapter and lights on/off as per the power adapter's state. None of the other leds work or even light up. What could be the possible problems of the sudden strip failure? Any help would be highly appreciated.

Question by Sudoer-_-me 1 year ago  |  last reply 1 year 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?)!

Topic by AIex 9 years ago  |  last reply 8 years ago


[vid] Addressable led strips

Greetings; I just finally got my sparkfun led strips working with the fastSPI code posted by Daniel Garcia. Not enough info to post an instructable yet -- What projects would you want to see done with this? I was using just bitbanging to make the arduino spit out the animations in software serial, and it was brutal hard on the processor -- barely had enough cpu to shift out the data, let alone calculate the animation.  Special thanks to the fastSPI code I found the hardware serial can do all the communication work and the processor can concentrate on animating. I will be posting a full ible but need more ideas! From my vid description: Got 64 RGB leds wired up using only 2 spi communicaton wires in excess of 100fps leaving tonnes of cpu overhead room for calculating the animation. *(I have to use delays to slow down the animation or its too fast to see with the eye, let alone capture with a camera) Strip: http://www.sparkfun.com/products/10312 (x2) Waterproof self-adhesive rgb addressable strips. INSANELY bright for 5050 leds. at full white 2 strips draws just under 2 amps/5 volts, they get a bit warm but nothing serious. uC: Arduino mega 1280; I found my duemilenove didn't have the storage capacity for this program. Anything 'uno' or better should do. Library: http://code.google.com/p/fastspi/ Special thanks to Daniel for writing his amazing library. Has support for many types of led strips and absolutely destroys software serial for getting the data out! This is the sample animation that comes with the library to get you started. It took just a bit of tweaking the software and wiring to get it working. Planned projects: Ambilight for computer Midi drum/keyboard visualizer Random party light/vu meter suggestions?

Topic by frollard 7 years ago  |  last reply 7 years ago