Big Noise From A 555 And A Little Embroidery

[Sam Topley] specializes in making textile based, electronic instruments and sculptures using embroidery, and this little hoop packs some serious sound (Nitter).

The circuit is a riff on a classic 555 timer circuit, which produces a signal that is modulated by applying pressure conductive textile in different ways. The signal is then piped through a system built in a visual coding interface called MaxMSP, which allows [Sam] to get specific on how to control it. The program shifts the pitch and applies filtering, producing a dynamic dial-up tone-like sound as the user interacts.

To top it off, [Sam] uses vintage resistors  and tropical fish capacitors from the 60s that compliment the visual design and match the embroidery floss, they’re both beautiful and functional! This isn’t the only circuit of this kind [Sam] has made, she also produces tons of e-textile radios using similar techniques. We love how this project spans a ton of areas, analog circuitry, vintage tech, and soft circuits!

While we don’t see too many projects involving them come our way, e-textiles are certainly a fascinating topic. Our coverage of 2018’s “eTextile Spring Break” in New York is a must-read if you’re interested in exploring this technology, and the relatively recent news that MIT has developed a washable LED fabric has us hoping we’ll see more projects like this in the near future.

Interactive Textile Construction

The e-textile construction kit by [Leah Buechley] consists of stitch-able sensors and microcontrollers. Stitch-able refers to the fact that these parts can be sewn with a needle and thread into wearable clothing or other fabric-based housings. A paper (PDF) on the e-textile construction kit project contains the first version. The second version of the e-textile construction kit, the LilyPad Arduino, is available this month through SparkFun’s site. Especially interesting are her instructions for modifying the clock speed on the Arduino to make it suitable for battery powered wearables.

We’ve covered [Leah Buechley]’s work twice in 2005 for her wearable led matrix work.

Update: [Leah] updated her site since we posted this and added this new how-to.