There is something very whimsical about a pocket-sized lisp machine.
I wonder what the experience of (junior?) high school would have been like if students were given something like this instead of a TI-84. Math and science classes could focus on constructing playable models that answered the questions posed by the instructors a la "Structure and Interpretation of Classical Mechanics" . Obviously there are some ergonomics issues but I'm still going to daydream about the concept.
If people are interested in these kinds of ideas I highly recommend "Mindstorms" by Seymour Papert .
I do have to question the choice of microcontroller here; for the same price you could get ARM Cortex M chips (eg Microchip/Atmel SAM) with order of magnitude more RAM, or at quarter of the cost a chip with similar size.
AVRs can be useful for tiny stuff, but they do not really scale to bigger things like this.
I believe anyone who is capable of making one of these is well aware that there are more powerful devices available. Perhaps this might indicate that computational power per dollar is not their driving influence.
Me too, it's awesome. I would pay at least 200 EUR for this device in a sturdy case if it also came with a built-in watch and a little beeper. Provided that the battery lasts long enough - if not, a simple character display would also do.
Unfortunately I don't know how to build something like this for myself. :(
That was exactly my first thought - I should make a case for it, that'd be cool. Black anodized aluminium would be nice, but then the pushbuttons will look unsightly and having some printed covers for the buttons would make the scope much too big.
Anyone looking for something similar with a better keyboard, may want to look at the board designed by GreyCat (https://greycat.co/goods/) which comes with a screen, blackberry keyboard, trackpad and LORA module for long range communication as it uses an ATmega2560, so uLisp should work on it also. Personally I wish they'd put a esp32 instead so that wifi would also be available.