Remember the Intel SDK-85? Intel's single-board "system design kit" for the 8085? Late 70s/early 80s era cutting edge computer hardware. It had a 110 baud teletype (current loop) serial interface. I assembled one back in the day but never used the teletype, only the keyboard/LED onboard control. SDK-85 with Arduino serial converter installed I recently …

Continue reading Reviving an Intel SDK-85 Serial Interface (part 1)