Custom ATmega32U4 ATMEGA328P LilyPad 328 For Arduino DIY Kit Micro USB ATtiny85 LilyTiny Main Board Buzzer WS2812 RGB CR2032 TEMT6000

LilyPad is a Simple i/o platform based on open source code, and has a development environment using languages like java and C. Allows you to quickly use the language with Flash or Processing... And other software to make interactive works. Developed electronic components such as switches or Sensors or other controllers, leds, stepper motors or other output devices may be used. It can also operate independently as a platform that can communicate with software, such as: flash processing Max/MSP VVVV or other interactive software. The development IDE interface is based on the principle of open source code, which allows you to download and develop more amazing interactive works for free.
LilyPad is a wearable technology where each LilyPad is creatively designed with a large number of connected pads so that they can be turned into clothing. A variety of input, output, power and sensor boards are available. They can even wash!

Foreign resources: https://sourceforge.net/projects/lilypad/