We first encountered this chip when working on the spokePOV kit. We wanted to control 60 LEDs from an Attiny2313. I only had maybe 5 pins to spare so even something like ‘charlie-plexing’ wouldn’t work. A great solution came to us with the suggestion of checking out the 74HC595. This is a chip that takes serial input (3 digital pins) and has 8 digital outputs. You can chain these puppies together to have near-infinite number of outputs. Perfect for controlling LED displays!
Eink, E-paper, Think Ink – Collin shares six segments pondering the unusual low-power display technology that somehow still seems a bit sci-fi – http://adafruit.com/thinkink
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, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, 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.