A 16-Step Music Sequencer Is Mounted on a Slap Bracelet Made from Measuring Tape

A wrist-worn synthesizer and 16-step sequencer attaches like an old-fashioned slap bracelet. Its transparent enclosure contains an ESP32-S3, display, speaker, and rechargeable battery, while brass contacts along the side can be touched with a stylus to play notes.

Instead of a custom spring mechanism, the wristband uses a curved strip of steel measuring tape wrapped in clear tape. Combined with the transparent PETG enclosure, the result deliberately recreates the translucent gadget aesthetic of the late 1990s and early 2000s. It was built by maker 3DSage.