Tweets
tag yourself I’m bringing snacks https://twitter.com/iluvbutts247/status/1491265177647747073
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Replying to @femtoduino and @MakerBlock
it’s all a mess
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i find the future confusing
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Replying to @josecastillo
life is a game of inches
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slowly but surely, getting closer to #CircuitPython on the watch. It builds and fits on the chip with room for a 64k filesystem, kinda like a Trinket. Of course it doesn’t actually _work_ yet. need to untangle my clocks and do a lot more debugging. but hey, it’s a game of inches.
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Replying to @__michaelg
inorite?!
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Replying to @Alie_GG
This is Lose It! I’d heard good reviews from friends and I’m pleased with it so far; cheat week notwithstanding, it’s helped me drop six pounds since the holidays. https://www.loseit.com
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ok I confess I had a few cheat days this week, but I didn’t realize I was doing _this_ badly…
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Replying to @smarcopoulos
We just discovered that it does work with the A158W! Importantly though, it’s not compatible with the the A168W. If it has that dim green or amber LED backlight on the left side, you’re good; if it has the blue electroluminescent “Illuminator” backlight, it’s not compatible.
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Replying to @davidskeck
That’s a great idea! My big desire is for a sunset count up / countdown for day hikes. The idea is that it could count up from the start of a hike to halfway to sunset, and then raise an alarm: if you don’t want to get caught in the dark, you should be heading back by now!
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lately I’m splitting my time between the battery test watch, and this lovely A158W with the new firmware. There’s just so much good stuff in it now. Beat time. Sunrise/sunset. World clock in triplicate; Portland and Shenzhen time have actually been quite useful! The gadget works.
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Replying to @tannewt
Nailed it! Thanks for the pointer, it pointed me in exactly the right direction. The start function was correctly marked as used, but the vector table wasn’t, so it optimized everything away since there was no way to get anywhere. Still lots of work to do, but we’re on our way!
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Replying to @esi_jg
the watch travels through time! it also fits on a wrist :) https://xkcd.com/209/
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Replying to @_joshdick
Thanks for the kind words!
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Replying to @josecastillo
Four seems to be the number lately. Wordle 234 4/6*
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Replying to @tannewt
Thanks for the tip! Will def look into this tomorrow :)
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Today is the closest I’ve been to having #CircuitPython on the watch. It compiles — a big milestone! Unfortunately once it links the firmware is 0 bytes long. Reminds me of what happens when I forget to put an entry point in my linker script. Still: this nut will crack this week.
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holy shit i learned so much last year
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Replying to @josecastillo
(I reprinted Max overnight with an extra quarter millimeter in the hole for the gadget. Minnie works too, there’s just a gap in that one where the wall got too thin; would have to shove the stone a bit further forward to make that one work.)
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Replying to @josecastillo
y’all. This might actually work. May want to add a little extra height to attach like a clear resin stone at the top. But this battery and this board could fit in this ring.
Now I just need to find some SAM D10’s in CSP form.
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Replying to @anne_engineer and @MakeAugusta
in fact I should spend some cycles on that today
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Replying to @anne_engineer and @MakeAugusta
If this is about Sensor Watch, I’m definitely gonna get it running CircuitPython! Not there yet, but it’s been part of the plan from the beginning.
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Replying to @josecastillo
once again, feel free to mute this thread; I’m just doing this for me. Wordle 233 4/6*
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Replying to @josecastillo
haha I was trying to figure out where the magic happened merging these shapes; then I found a tutorial for OpenSCAD’s hull modifier, which reads in part “The hull command merges the outermost bits to form a single object. It is really a bit magical to me.” https://www.openscad.info/index.php/2020/10/18/hull/
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Replying to @josecastillo
my gosh, one millimeter isn’t even remotely subtle.
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Replying to @josecastillo
two versions to start: Minnie and Max. The jewel area’s a little tight on both and may need up to another mm, but the thing fits! The main difference is the thickness of the “ring” portion of the ring: 1.6mm for Minnie, 2.6 for Max. Code here: https://gist.github.com/joeycastillo/adb949bd2e3f85c12e898037d0422456
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Replying to @josecastillo
y’all, this is mad clever. Instead of extruding the shape of the ring along a path, the script defines a sphere for the main body of the ring, intersects it with a cuboid defining the height of the ring, and adds it to another sphere for the jewel. It almost feels more clay-like!
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Replying to @josecastillo
Wow, turns out OpenSCAD can do all this and then some! @Oskar_mbr shared a script in the alt text of a tweet, and already I feel like I’ve learned several new ways of thinking about the shape that we’re building. On the SLA printer now! https://twitter.com/Oskar_mbr/status/1490429921893756928
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Replying to @josecastillo
Battery test, day 90: 3.0 volts. We’re a quarter of the way there! Analysis time: it’s possible (reasonable even!) that we’ll hit 1 year. But I cannot lie: the data’s not conclusive. It’ll be 3V til it’s not. If we’re still near 3V in May though? That’ll be cause for celebration.
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Replying to @Oskar_mbr
WHOA, that is amazing! I really need to up my OpenSCAD game; I know it can do a lot, but I really need to learn the tool. Thank you for sharing!!
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Replying to @SignalSkew
🤯 this is rad, thank you!
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among the tasks I’m not tackling today: the ring. I did this using a combination of SLA printing & modeling clay, but I have no idea how to make it in CAD. No idea the math behind the shape, tho it should be parametric to handle people’s ring sizes and such. Can OpenSCAD do this?
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Replying to @josecastillo
(this is a tweet about our descent into fascism, i think)
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Replying to @GregDavill
I hear you, yeah. Microchip Direct has them lately, albeit with a MOQ of 50 which is a bit of a commitment for a side project.
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Replying to @josecastillo
back on my bullshit (with a perfect bell curve so far!) Wordle 232 5/6*
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had a dream last night where I died in a plane crash while someone two rows up argued about his seat assignment. Out the window I could see we were going down, and he was complaining about having to change seats. I had to laugh; all I could think was “so this is how it ends.”
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Replying to @josecastillo
(credit: this chart is a risograph designed by brooklyn-based artist Lena Hawkins, and while I don’t know precisely how it came into our lives, I do know that you can buy a print on Etsy) https://www.etsy.com/listing/1127232367/2022-zodian-moon-calendar
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Replying to @josecastillo
now that solar calculations are in the bank, I find myself returning to this chart that appeared on our wall sometime around the new year. Listen: I just want to wear the moon and the stars on my wrist. Is that so much to ask?
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Replying to @josecastillo
YES! Sunrise/sunset face now updates in low power mode; just after sunset, it’ll show tomorrow’s sunrise. Meaning if you didn’t care to *wear* the watch, you could just leave it on your desk as a low-power sunrise/sunset clock. 16 days left to get yours! https://www.crowdsupply.com/oddly-specific-objects/sensor-watch
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Replying to @josecastillo
I remain unreasonably proud of the UI that allows the user to enter their location. This is showing today’s sunset in NYC, but what about someplace more equatorial? Quito, perhaps? I admit it’s a few button presses, but then it’s stored and you don’t have to think about it again.
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ICYMI, in this week’s backer update we discovered that the Sensor Watch board swap is compatible with Casio’s stainless steel A158W! Shown here with the now-complete Sunrise/Sunset watch face. This thing punches way above its weight for a $22 wristwatch. https://www.ebay.com/itm/Casio-Men-039-s-Quartz-Digital-Chorno-Silver-Tone-Bracelet-Watch-A158W-1-/183491163204
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Replying to @josecastillo
This is on the Special Edition board, which has two 100Ω resistors limiting the red/blue LED. On the normal red/green board, you’d probably also have to replace the 1KΩ R6 with a 100Ω 0603 resistor. An intermediate level hack for sure, but still within the realm of the possible!
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fun #SensorWatch discovery while digging around in the parts bin: you can replace the red/blue LED with a white 0805 LED for a cool neutral backlight! It’s not the brightest, and you do have to drive both pins to source enough current to get it to glow. Still, it’s a cool hack :)
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Replying to @helenleigh
Ugh, so sorry to hear all this, Helen! Hope you feel better soon, and the year starts throwing you good vibes from here on out. You rock!
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Replying to @gojimmypi
(I also could be totally wrong about all of this; this is just the thinking that convinced me to spend the extra effort sticking those resistors on the board 🙂)
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Replying to @gojimmypi
Basically the added capacitance of longer traces / more gadgets on the bus could slow the signal’s return to a logic high value, since the stray capacitance has to charge through the resistor. Doesn’t matter when pulling up a button; matters more pulling up a fast(ish) signal.
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Replying to @gojimmypi
There’s a good TI document about picking I²C pull-ups, but the gist is that my instinct is to stick to 10k or stronger, and 40k might be too weak to pull the line high after being driven low. Probably not a problem with these short traces, but better safe. https://e2e.ti.com/cfs-file/__key/communityserver-discussions-components-files/6/I2C-Bus-Pullup-Resistor-Calculation.pdf
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RT @glowascii: Got to unbox @josecastillo’s #SensorWatch today on @Hacksterio – and put it into this goldtone @Casio_USA F-91W!!! Looks AMA…
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Replying to @josecastillo
Get in on this panel if you want! I can’t promise that it’ll work, or that you’ll be able to get the chips to build it. I can only promise that it’ll be tiny. https://oshpark.com/shared_projects/tSSKoXrI
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Replying to @josecastillo
fun!
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