HP35: A Bit-Serial Wonder - 4. LED Magic

Part4. LED Magic

LED numeric display is the icon of HP classics. With just a single 5-bit register inserted, how could they design such a full feature, flicker-free and properly PWM'd display that can display 15 digits?

[Status: TBD]

(The top image is a part of an advertisement of HP calculators. Edited to fit in.)

Leave a Reply

Your email address will not be published. Required fields are marked *