Rescuing vintage microcontrollers part 3: Life at long last

In this series of posts , I&rsquo;m rescuing vintage microcontrollers from their decades-long purgatory in a drawer in my local makerspace . To this end, I&rsquo;m attempting to use them to drive a LED sign made of WS2812 strips &#xA; So far in this series , I&#xA; found some decades-old Signetics SCN8031AH and OKI MSM83C154 microcontrollers in a drawer ,&#xA;and worked out that they&rsquo;re 8051…