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...James stowe pit final project periodic table of arduino the objectives this note has two to elucidate a minimal set elements necessary construct an uno hereafter map complexity supply chain prior work author performed several searches for study similar one there is some interesting reporting done on iphones detailing rare earths that are used production another infographic smartphones here neither these sources claim be complete or no seems have been methodology original bill material was sourced from website and stored list provided basis all subsequent research datasheets digikey components themselves separated into classes those had detailed information about materials in their did not it straightforward exercise look up chemical composition searched out comparable items looked specific construction techniques notable among class were integrated circuits diodes leds luckily complex terms further difficulties companies unlikely release they use will usually go with general name like ...