LEDs Overview

Published on August 4th, 2014 | by wylight


Wi-Fi DIODER: Light controls on your smartphone


Materials: DIODER, WyLight board, soldering iron, small side cutter

Description: Some month ago colored LED strips got popular in Germany and somehow one of these stripes ended up on our desk. It was a nice idea to have colored light at home but something was weird with these strips. All of them are controlled by an IR remote. This might be a cheap solution for the LED companys, but we wanted something more elegant. So we thought, why not just use our Smartphones? So we build a small circuit board with Wi-Fi onboard, connected it to the LED strip and wrote an iPhone app for it. Now, we were able to choose full 24 bit RGB colors, program self running scripts into the strip and do all this from our phones, even if we are not at home.

Then we discovered DIODER at our local IKEA and got curious on its inner workings. Still in the car on our way home we opened the control and saw that it might be easy to replace the original circuit board with our own. No sooner said than done we replaced the board in less than 20 minutes and can now control our DIODER from anywhere in the house. Use it to wake us up with a sunrise and even group multiple DIODER to enlighten us simultaneously.

If you like to try the same here is how we’ve done it:


1. Open the case of the DIODER. It is held by 4 clips.



2. Remember the color encoding of the wires or simply take a snapshot. IKEA might change the encoding silently. Be careful if your DIODER circuit boards looks different, too. Then unsolder the wires from the DIODER pcb.



3. Solder the +12V and ground wires to the WyLight pcb. Then connect the led_red, led_green and led_blue wires to the connectors. Now, check if everything is working as expected. Use the WyLight app to connect to the DIODER and test it.

playstore appstoreGitHub_Logo






5. To better fit with the WyLight pcb, remove the retainer in the top case as seen in the snapshots. With the retainer removed the case should close more easy.

6. Have fun!


You like our idea and can’t wait to build your own WyLight board? Then get the circuit diagram, layout and bill of materials from our open source repository at GitHub and start soldering.

Soldering is not your thing but you want a Wi-Fi DIODER? Then contact us at [email protected] to purchase a ready to use board or Wi-Fi DIODER directly from us.

IKEA Norbo Yamaha cymbal standing desk
Perfect small night stand for limited space next to Queen bed

The Author


15 Responses to Wi-Fi DIODER: Light controls on your smartphone

  1. Rene says:

    How expensive is the product? if bougth with all components from you guys?
    Would it be cheaper to like use the esp8266 for this job?

  2. Mikkel GP says:

    Great idea and article!

    What about reversing the proces – using the DIODER to send the rgb data via wifi to e.g. a REST service which in turn would control e.g. philips hue lamps etc.?


  3. Zachary Swanson says:

    Am I able to buy the things needed to control the lights on my iPhone? What do I need to do? Please help!

  4. Kevin says:

    This is a great project! I saw your directions to GitHub, but does the PCB have to be built by hand or do they come prebuilt?

    • wylight wylight says:

      Hi Kevin,
      unfortunately our campaign on Kickstarter failed. That’s why we still can’t offer you ready to use boards for a cheap price.
      If you solder the board yourself, we can send you an empty PCB. Just let us know, if that’s an option for you.

  5. Mike Whittaker says:

    Any thoughts about a ZigBee version of this … see also the Philips HUE LED lightbulb !

    • wylight wylight says:

      Hi Mike,
      we did think about ZigBee and Bluetooth but in the end we decided to use WiFi.
      ZigBee has it’s advantage in low cost and power. But it requires “special” hardware such as the HUE bridge, to connect it to your phone or home network.
      Bluetooth would be available for nearly all modern phones, so no extra hardware required at the first look. But if you like to use your device from different phones or PCs you end up building something similar to the HUE bridge to make your Bluetooth light available to your home network.
      In a WiFi network you have these bridge always available as your WiFi router. So we think WiFi is the most straight forward technology to connect different devices wireless to your home network. Of course these comes with costs. WiFi chips are more expensive and consume a lot more power.
      We believe the industry is addressing theses issues. The IEEE is working on low power standards (successor to 802.11ah) and the industry builds chips consuming less power.
      To sum it up: we decided to use WiFi because it requires the simplest infrastructure and we believe we can master the power consumption. Costs were not in our focus.

  6. Nils says:

    Check out our latest WyLight trailer for the iOS App:

  7. Jochem says:

    I have a different version of the dioder with a controller like this one https://www.soldierx.com/system/files/ard2.jpg . It is only 1 button. Do i have to have the version that you use or can i use my version?

    • wylight wylight says:

      Hi Jochem,
      everything is possible, but I think you won’t have fun with that.
      WyLight doesn’t fit into that housing of yours and I believe it is a DIODER for white colored LEDs. That would mean you need to build an adaptor and then you are only able to dimm the brightness…, I wouldn’t do that.

  8. Iain says:

    Hi will you be selling these already done , and if so will you post to the UK etc

  9. Hendrik says:

    Fritz, Patrick and Nils: Great job! I have mounted a DIODER under the loft bed of my daughter and she really enjoys it. But I asked myself weather it will be possible to have it controlled by WiFi instead of this bulky cable remote to have it mounted on different places. And you guys found out how. Great!

    My only problem is, that I m not really good at brazing. So could you please provide me with an offer for a ready to use board with shipping within Germany (as far as I found out you guys are from Germany as well :) ). This would be really great. Thanks a lot!

    • wylight wylight says:

      Hi Hendrik,
      thank you for your positive feedback. Yes, we are from Germany, too. But to be fair with all the other guys on this website, I will stick to english. Of course we can exchange emails in German if you want.

      We are glad to see that you want to get rid of bulky cables, too. And we really appreciate you want to use our WyLight board. However I must warn you the price for a ready to use board might not be what you expected.
      So far we have just done/ provided a few boards for our friends and ourselves. Therefore mass production has not been an issue To solder, program and test one board, we need about three hours. If we buy all the electronic parts for 100 boards to get a “volume discount” that would take about the same amount as you need to buy 200 Raspberry Pis.
      You might wonder why you only get the bare parts of WyLight for two Raspberrys. It’s not because we use some expensive components, it’s just about the number of pieces. If you order only 100 Microcontrollers from a semiconductor manufacturer, he just thinks you are joking. If I remember correctly they did one million Raspberry Pis in the first year. Try to calculate how many they build per hour…
      And then there is the manufacturing. If you get a manufacturing line for one million euros you should be able to solder, program and test all of our 100 WyLights in just a few minutes. Remember we need three hours for one.
      So if you sum up 2 Raspberry Pies + 3 hours of work + German taxes you get 239€.
      We don’t expect people to snatch WyLight boards from us at that price. But we wanted to provide an offer for those who have difficulties in doing it on their own. So we decided to provide that offer and see the reaction.
      Fortunately we got many positive reactions. We saw a lot of people are interested in the WyLight board and most of them suggested immediately: “Hey do a kickstarter, I will support you!”. And that’s what we want to do next.
      We can’t give you a schedule on this, and we are not sure we can reach a million WyLight boards per year.
      But I can tell you we are working on it. And it’s a lot of work to do, for just three guys, who all have a daily job to pay their rent.

      For all the other guys willing to solder and get the electronic by themselves we can offer you this:
      an empty board for 5€ and a preprogrammed PIC for another 5€ + shipping.

      And finally to all the others, who like the idea of the WyLight board and are willing to support us. Just a simple feedback to [email protected], would already help us a lot and would be a great motivation.
      Of course, if you have any talent to contribute to the project, don’t hesitate to contact us. Photography, multimedia and a lot of other things are not what we can do well. Help with that would be very appreciated!

      We need your help to make WyLight a great experience for everyone!

      Thank you for your time,

  10. wylight wylight says:

    Sorry for being so late. We got a little surprised when our article got immediately released after sending it into review. Before public release, we expected a “do you really want to go online, now?”
    So Fritz had to do some extra night shifts to get it ready for release as soon as possible.
    Now, you should find everything you need here:
    Keep us up to date if you run in any trouble with these files


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