[HN Gopher] Lisp Badge LE
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Lisp Badge LE
Author : rcarmo
Score : 244 points
Date : 2023-09-27 22:27 UTC (1 days ago)
(HTM) web link (www.technoblogy.com)
(TXT) w3m dump (www.technoblogy.com)
| anonzzzies wrote:
| Wish someone would build this in a casing etc : especially the 40
| hour our on a coin cell. 3d printed should work, but I don't have
| time and would just like to buy it complete.
| hwestiii wrote:
| I love this guy. I ran across him trying to self teach about
| embedded electronics and his site is one of the best I've found
| both for interesting projects and good instructional examples.
| lioeters wrote:
| I love his projects too. He's also the creator of uLisp. (If it
| weren't clear from the article.)
|
| http://www.ulisp.com/
| gleenn wrote:
| This is a really cool project. I wish I was better at doing
| electronics construction, wish I could just buy one too. 40 hours
| of life on a coin battery is pretty impressive.
| staypufd wrote:
| You can buy one. The link is at the bottom of the article.
| anonzzzies wrote:
| Looks like that's only the pcb though? Or am I clicking the
| wrong link?
| wslh wrote:
| I am also curious about having an assembled one.
| LispSporks22 wrote:
| I've used uLisp via the serial port. In that mode of provides a
| cool structured Lisp editor (easily navigate sexps). I wonder if
| the display one here does the same thing.
| dudus wrote:
| "The connection to www.technoblogy.com is not secure You are
| seeing this warning because this site does not support HTTPS.
| Learn more"
|
| It's 2023 people. How can you justify no https on a technology
| blog?
| worthless-trash wrote:
| Easy, the owner doesn't care about the data served from their
| source gets MITM'ed.
| dannyobrien wrote:
| ulisp is great - I have it running on a little neopixel matrix I
| use to flag when I'm on video:
| https://github.com/dannyob/signpost
|
| I'm ashamed of how much power that sucks down compared to this
| badge though!
| incanus77 wrote:
| This guy's projects are a fave of mine, especially the tiny
| computers like this and the audio projects. And the tiny
| photography is great!
| randomcarbloke wrote:
| Dammit I haven't finished populating the last lisp badge.
| captn3m0 wrote:
| I'd love if old Blackberry shells became standard casing for such
| projects. Perfect keyboard, good display size.
| eimrine wrote:
| Blackberry-compatible motherboard with appropriate keys and
| nothing more may be done relatively easy, but where to get
| drivers for the display and the sensor joystick?
| numpad0 wrote:
| Display and joystick goes on the PCB anyway. Just use what
| works. Bigger problem is BlackBerry, or anyone to be in their
| position, won't like that being done at scale.
| eimrine wrote:
| Display and multitouch definitely has to be reused, it is
| almost retina on later models.
| onemoresoop wrote:
| I'd totally buy a fully assembled one but I wonder how much it
| would go for.
| freilanzer wrote:
| Same.
| thsksbd wrote:
| For the kids its be great
| zubairq wrote:
| This is really awesome. Kind of like a programmable calculator
| but super powerful that you can take anywhere!
| tyingq wrote:
| First thing I looked for was dedicated parentheses keys, was not
| disappointed.
| otikik wrote:
| Probably should have put them on the center of the keyboard,
| though :)
| msk-lywenn wrote:
| Or in the back or top, like gamepad triggers/bumpers!
| Horffupolde wrote:
| Should have a spare set.
| scns wrote:
| https://neo-layout.org/ has em under your strongest fingers,
| after holding down a modkey.
| roydivision wrote:
| Arg, I'd love one of these, but my project backlog has backlogs.
| As others have commented, I'd buy a fully assembled unit.
| pjmlp wrote:
| Quite cool, specially how the keyboard and special symbols being
| taken care of.
| smegsicle wrote:
| i love the full keyboard- any time someone says they wouldn't
| benefit from learning vi bindings because they 'spend more time
| thinking than typing' i hand them one of these
| herewulf wrote:
| Vi bindings come surprisingly in handy while typing in the
| terminal on my smartphone even.
| capableweb wrote:
| Yeah, surprised me as well when I was trying different ways
| of editing text and sometimes code via touch keyboard, vim
| bindings was the easiest way by far.
| mkreis wrote:
| 40 hours with a coin battery is impressive, but I think it is a
| bad decision in terms of environmental friendliness.
| herewulf wrote:
| Indeed. Are there rechargeable coin cells?
| anonzzzies wrote:
| Yes, look for LIR2032 batteries.
| guenthert wrote:
| "The Lisp Badge LE draws only 6mA from its CR2032 button cell,
| and so should have a life of about 40 hours"
|
| I suppose that's 6mA when the CPU (MCU here) is active. In idle
| mode that ought to be much lower (the low power monochrome
| display, not eInk, draws only 30uA as stated separately). Does
| uLisp support idle mode? Uh, apparently not automatically, but
| requires the user to call a SLEEP function ...
| thsksbd wrote:
| I'd love to buy this for my 8 year old - this week I taught her
| how to check her homework on elisp. The idea is to familiarize
| her with lisp syntax a bit to prime her for programing in the
| future.
|
| I was between calc (RPN) or lisp (elisp) for their simple syntax.
| The way I see it LISP's REPL loop is simple enough to teach a
| kid. And I may be right: after teaching her to verify a two
| argument operation she got a three argument question. She did:
|
| (+ 12 43 67)
|
| :)
| rnk wrote:
| You can order one through a link on that site, can it be only
| $23? That's what pcbway.com says. I need a more turnkey
| approach, someone tell me what to do to get a working board I
| can just plug in an use. If you ask for "assembly" then it was
| adding almost $100.
| thsksbd wrote:
| Thats just the board, I think
| rnk wrote:
| because of the display and low power use, I'd pay somewhere
| between 75 and $100 for one of them in a plastic case with
| some easy power supply/connection like maybe a usb plug-in
| port?
|
| It's such a cool display and keyboard. Another cool thing
| (that I'd pay for!) is to attach that to a rasberry pi.
| jhvkjhk wrote:
| May I ask what's the point of attaching a standalone
| computer to a raspberry pi?
| matheusmoreira wrote:
| This is way too cool.
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(page generated 2023-09-28 23:01 UTC)