SparkFun LED Array (8x7) Hookup Guide - learn.sparkfun.com
code review - Unwanted ghosting with charlieplexed LEDs - Arduino Stack Exchange
Multiplexing 32 Buttons and 32 Leds?
Keyboard and display multiplexing - Charlieplexing - Embedded.com
buttons multiplexing — Parallax Forums
multiwingspan
Keyboard and display multiplexing - Charlieplexing - Embedded.com
Controlling 20 Led's From 5 Arduino Pins Using Charlieplexing : 8 Steps - Instructables
multiwingspan
The Charlieplexing
Tucoplexing: A New Charliplex For Buttons And Switches | Hackaday
Encode dozens of buttons with only four lines - EDN Asia
Charlieplexing - controlling N*(N-1) LED's with N GPIO pins | B4X Programming Forum
The Charlieplexing
Charlieplexing Using A Microcontroller / Arduino - YouTube
Charlieplex Segment binding | nanoFramework Documentation
Charlieplexing switches
Another Way To Look At Charlieplexing | Hackaday
What maximum number of buttons i can connect to Arduino (100 buttons and more) - Electrical Engineering Stack Exchange
Charlieplexing - Wikipedia
The Charlieplexing
WaynePlexing Push Buttons (or, read 6 buttons using only 3 I/O pins) - Wayne's Tinkering Page
Charlieplexing Arduino - Controlling 12 LEDs with 4 GPIO Pins
