The new Adafruit TinyUSB library is being used in more projects – it gives USB microcontrollers the ability to show up as a flash drive on WIndows/mac/Linux allowing for files to be dragged & dropped to/from the device. No more SD cards, recompiling or other esoteric data loading! You need the Adafruit SAMD core version 1.5 (or later) to use the library and of course all of this is Open Source, free to use in your projects.
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, or even use Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for MakeCode, CircuitPython, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.