In case folks are interested, the creator of this has recently made a new version, the "Lisp Badge LE": http://www.technoblogy.com/show?3Z2Y

Some previous discussion of the "Lisp Badge LE" on HN: https://news.ycombinator.com/item?id=37682273

Thanks! Macroexpanded:

Lisp Badge LE - https://news.ycombinator.com/item?id=37682273 - Sept 2023 (48 comments)

Lisp Badge (2021) - https://news.ycombinator.com/item?id=29945235 - Jan 2022 (14 comments)

Lisp Badge: A single-board computer that you can program in uLisp - https://news.ycombinator.com/item?id=23729970 - July 2020 (25 comments)

Lisp Badge – Self-contained ATmega1284 Lisp computer - https://news.ycombinator.com/item?id=18878367 - Jan 2019 (2 comments)

Lisp Badge – Self-contained ATmega1284 Lisp computer - https://news.ycombinator.com/item?id=18875475 - Jan 2019 (25 comments)

Looks neat! Is there a way to buy one without having to build it myself?

How about an alternative http://www.ulisp.com/show?4JAO