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 hackster.io:
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.
