Furniture backlighting on addressable LED strip

Savva

Tashkent, UZ

1 day

Hello everyone! Today there will be a short instruction on how to implement soft furniture lighting in your home. I am sure that this will add an original touch to the interior of your living room or bedroom. In this example, I implemented lighting under the bottom of a Finnish sofa Torino in the living room, and also connected it to voice control for turning on and off via Yandex Station Max и Home Assistant. All you need is to buy ready-made components on AliExpress, with the exception of decorative corners at the joints of the LED profile, which we will print on a 3D printer.

What you'll need

Materials

Addressable LED strip WS2812B (60 LEDs per meter)1 pc
Aluminum LED profile with mounting brackets1 pc
LED strip controller with IR and Bluetooth control (1 Out Port Bluetooth)1 pc
5 Volt power supply1 pc
Thermal glue1 pc
Solder1 pc
Wires1 pc
Plastic platform with cable tie1 pc

Tools

Soldering iron1 pc
Dremel with micro cutting disc1 pc

Steps

Cutting of aluminum profile for LED strip

If your sofa is placed against a wall, it is better to make the profile shape in the form of the letter U, because the lighting effects will not be visible between the wall and the back of the sofa. Turn the sofa over and measure the length and width of the bottom. Then take a Dremel with a micro-cutting disc and cut the LED strip profile based on the measurements taken. The cut ends of the profile can also be sanded with a micro-cutting disc or a similar abrasive attachment. In terms of length, I made 15mm offsets on the right and left, and in terms of width, I made an offset only on one side, so that the joint of the profiles would look like this:

Installation of LED strip profile brackets

Determine the installation locations of the profile brackets. In my case, I set back 10 cm from each edge when installing the outermost brackets, and the number of intermediate brackets will be different for each because this will be determined by the length of the profile. In my case, I installed 4 brackets along the length and 3 along the width.

Installation of addressable LED strip in profile and soldering of contacts

First, lay the LED strip in the profile and see where it needs to be cut. Stick the strip into the profile and follow the direction of the arrows indicated on it. Next, take the wires that will go with the strip, cut them to the required length, tin the wires and the strip contacts with a soldering iron, and then solder the wires to the contacts. Also, desolder the connector with wires from the very beginning of the LED strip, carefully thread the wires through the end cap of the LED profile, then solder the wires to the beginning of the LED strip, and reinstall the cap into the profile.

3D printing of decorative corners and their installation

To make the profile joints look professional and to avoid accidentally tearing off the wires under the sofa during cleaning, I designed in AutoCAD and printed these corners, which are attached to the bottom of the sofa at the profile joint with just one screw.

For the excellent print quality, I want to say a special thank you to the guys from 3DCORP.

The chamfer for the screw I later made manually using a lever drill press and did not include it in the 3D model, as screw heads will be of different diameters for everyone.

Controller installation and cable management of wires

We attach the LED strip controller with thermal glue near the beginning of the strip, connect the controller to the strip connector, and also arrange part of the wires using a plastic platform and a cable tie, having previously glued the platform to the bottom of the sofa with thermal glue. Finally, we turn the sofa over and connect the controller to the power supply. When calculating Amperage for power supply use formula: strip length * number of LEDs per meter * 0.3 Watt / 5 Volt.

Conclusion

Profit :)

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Maker

Savva

Tashkent, UZ

Anton is the Managing Partner of Tinkster. He studied oil and gas engineering in the United States and also holds two honors degrees from Tomsk Polytechnic University.

Downloads

Decorative corner

12.2 KB