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Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
@allObjects
...12, but I did not think of that...
After I noticed how much 'work' it is - in regard of code to execute and hardware to wire, I'm leaning now more towards using an OLED...
It was an interesting experience... and satisfying childhood memory...
I guess it was outgoing 60' (very early 70), when I bought a pocket calculator with such a display, but only 8 digits. The calculator chip could only do integer math. The calculator was pretty bulky, may be the volume of 4..5 9V block batteries. My goal then was to remake it as small as possible to fit in a small match box... I would reuse the display carrier board that also carried the calculator chip on the back of it's carrier board, rebuild a tiny key board and rewire it...
Using a Pico I would now get a full 32 bit scientific calculator... the remaining 4 bit of the digit driving 595 and the plenty of pins would give me a comfortable keyboard scanner... I could even think of a Puck to make the anachronism perfect...