Here’s a fantastic DIY wearable project for a tactile interface you can wear like a sleeve. The project uses Adafruit Circuit Playground Express. Here’s more from cmoz via
Using this sleeve, in any configuration can provide inputs for your electronic projects. You can connect it to any circuit board and – use it for touch input(native on an ESP32 board, for example), adding touch capabilities to any project. If your microprocessor board doesn’t have native touch capability, you can use a touch library (ADCTouch, I’ll provide a code example at the end of this guide) to add this to an Arduino-based board.
See project! // Read more: original article.

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