With LEDs that require only one pin, you can do a lot with even just a 6-pin microcontroller!
A touch controlled light with 4xWS2812 RGB LEDs and ATtiny10.
This is a small hardware project which utilizes the light_WS2812 library and the TinyTouchLib to implement a touch-button controlled RGB-LED light. Only two output pins of the ATtiny10 are used. Atmel Studio project and Eagle files are included.
Read More: Tiny Touch Button