The Teensy is a complete USB-based microcontroller development system, in a very small footprint that is compatible with the Arduino ecosystem.
Teensy products are manufactured by PJRC.
Teensy LC with Header Pins
Teensy Audio Board
OctoWS2811 Adapter for Teensy (Controller for Neopixels/WS2811 LEDs)
Teensy 3.x Feather Adapter
USB Host -kaapeli (Teensy 3.6)
Teensy Header Kit
Piikkirima 1x40 – Suora