Simple arduino code to load user inputs into an array. Play with it here: https://www.tinkercad.com/things/8rQE1vWJKZc Took a couple days to learn some of the ins and ...

A nibble is a 4 bit element, which can hold a value 0..15 (0..F in HEX). It can be seen as an uint4_t type. The nibbleArray is an array that stores 2 nibbles in a byte therefore it is twice as small ...