This is the tutorial dedicated to THT, the through-hole KIT KeyChainino’s version. In this page you learn, step-by-step, how to mount and solder all the components on the PCB to make your THT.
Many people, inspired by KeyChainino’s Charlieplexing, have developed their own device using KeyChainino’s sketch from my github. Someone has designed it’s own matrix schematic, someone else asked to me for the KeyChainino’s schematic to help them in their KeyChainino replica. KeyChainino