Sewable LED lights ready for wearable tech fashion projects

Making LED Lights Sewable for Wearables

Wearable technology often incorporates LED lighting to display a variety of effects. In this quick tutorial I’ll share two ways to make LED lights sewable for soft circuits with conductive thread.

If you’re just getting started with LEDs, take a look at my Introduction to LEDs first.

Want this tutorial in video form? Watch “Making LEDs Sewable for Wearables and Conductive Thread” in video format.

Materials

For both techniques, you’ll require a small pair of needlenose pliers. You can purchase special pliers designed for electronics or jewelry, but any small set of pliers will work. The first technique requires soldering, and the second only requires pliers. We’ll start with the solder technique first. (If you’re looking for a soldering iron, this is the one I use for all my projects)

Needlenose pliers tool for making sewable LEDs for wearable projects

These pliers are inexpensive and include a wire cutter.

Buy them on Amazon here.
Multicolor LED set in two sizes for DIY sewable wearable tech

This is my favorite LED set that I use for many projects. It comes with multicolor LEDs in two sizes. The box is also nice to re-use for odds and ends.

Find it here.

Solder Technique

Marking LED cathode with a marker for sewable wearable tech assembly

To start, I like to mark the shorter side, or cathode, of the LED with a marker. This step is entirely optional, but it will make it easier to work with later by taking out the guesswork of how to arrange your LEDs.

Bending LED posts at 90-degree angles for sewable wearable electronics

Next, use pliers to turn the posts at 90 degree angles. Be careful not to break the LED at this point, as some LEDs are weaker the anode or cathode can snap off. Trim down the posts slightly to be about a half an inch long. You can use strong scissors or your pliers to do so.

Creating small loops on LED posts for sewing into wearable garments

Now we’re going to use our pliers to make small loops on both sides. Curl the end of the LED into a small, tight loop. Twist the loops to be aligned with the bottom of the LED so it sits flat.

Your LED will now be the right shape, but there is a small gap that can allow your thread to slip through or become frayed. We’re going to seal that gap with a tiny amount of solder.

Soldering LED loops closed for secure sewable wearable tech connections

Carefully add a small amount of solder at the point where the loop closes. Your goal is to seal any spaces where the thread could slip through. Avoid jagged edges in your solder, as this can cause snagging and fraying. Repeat this on both sides, and you have beautiful sewable LEDs.

No-Solder Technique

No-solder technique for making sewable LEDs for wearable tech beginners

If you prefer not to solder, repeat the first steps and turn the posts at 90 degree angles. This time, don’t trim the ends.

Making wearable tech with sewable LEDs using the no-solder spiral technique

Using your pliers, create a small loop at the end. Repeat the loop again to create a spiral. This will also prevent the thread from slipping out of the loop.

Enjoy sewing with your LEDs!

DIY Wearable Tech Starter Kit

Ready to start building?

The DIY Wearable Tech Starter Kit has everything you need for your first light-up project. No coding. No soldering. Just peel, stick, and wear. Includes a flexible LED strand, remote controller, and battery pack.

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