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1. Embed this notice
   Kris Nóva (nova@hachyderm.io)'s status on Thursday, 08-Dec-2022 06:17:31 JST Kris Nóva

   in reply to

   • Foone🏳️‍⚧️

   @foone

   Have you ever listened to the Oh Hellos... they are great!

   • Embed this notice
     Foone🏳️‍⚧️ (foone@digipres.club)'s status on Thursday, 08-Dec-2022 06:17:35 JST Foone🏳️‍⚧️

     in reply to

     OH HELLO encodings of how sensors are mapped to letters

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     Foone🏳️‍⚧️ (foone@digipres.club)'s status on Thursday, 08-Dec-2022 06:17:41 JST Foone🏳️‍⚧️

     in reply to

     hey look it's unity

   • Embed this notice
     Foone🏳️‍⚧️ (foone@digipres.club)'s status on Thursday, 08-Dec-2022 06:18:02 JST Foone🏳️‍⚧️

     in reply to

     APK is 98mb.
     10$ says it's unity.

   • Embed this notice
     Foone🏳️‍⚧️ (foone@digipres.club)'s status on Thursday, 08-Dec-2022 06:18:08 JST Foone🏳️‍⚧️

     in reply to

     so let's look into the app and see if we can figure out how to talk to this thing over bluetooth.

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     Foone🏳️‍⚧️ (foone@digipres.club)'s status on Thursday, 08-Dec-2022 06:18:12 JST Foone🏳️‍⚧️

     in reply to

     okay yeah it's definitely capacitive.
     by putting a removed sticker on it, I can get it to recognize the right letter, but touching it with my finger causes it to freak out and switch to other letters

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     Foone🏳️‍⚧️ (foone@digipres.club)'s status on Thursday, 08-Dec-2022 06:18:16 JST Foone🏳️‍⚧️

     in reply to

     thought I'd check if it has a profanity filter.
     nope! (at least not in this mode)

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     Foone🏳️‍⚧️ (foone@digipres.club)'s status on Thursday, 08-Dec-2022 06:18:19 JST Foone🏳️‍⚧️

     in reply to

     and it doesn't recognize if I put a letter down with the sticker facing up. so it's not just a pressure sensor.

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     Foone🏳️‍⚧️ (foone@digipres.club)'s status on Thursday, 08-Dec-2022 06:18:23 JST Foone🏳️‍⚧️

     in reply to

     it recognizes letters if they're upside down, but blinks the light under the letter.

     other than letters that can be inverted (O) or letters that mean other things when inverted (M/W)

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     Foone🏳️‍⚧️ (foone@digipres.club)'s status on Thursday, 08-Dec-2022 06:18:26 JST Foone🏳️‍⚧️

     in reply to

     anyway I can put letters on here and they show up in-game.

   • Embed this notice
     Foone🏳️‍⚧️ (foone@digipres.club)'s status on Thursday, 08-Dec-2022 06:18:28 JST Foone🏳️‍⚧️

     in reply to

     oh sweet beezus it's 3D

   • Embed this notice
     Foone🏳️‍⚧️ (foone@digipres.club)'s status on Thursday, 08-Dec-2022 06:18:30 JST Foone🏳️‍⚧️

     in reply to

     OTA updates! let's say no for now

   • Embed this notice
     Foone🏳️‍⚧️ (foone@digipres.club)'s status on Thursday, 08-Dec-2022 06:18:32 JST Foone🏳️‍⚧️

     in reply to

     interesting that it wants to calibrate my playset. also I miscalibrated it. whoops.

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     Foone🏳️‍⚧️ (foone@digipres.club)'s status on Thursday, 08-Dec-2022 06:18:34 JST Foone🏳️‍⚧️

     in reply to

     wow. I can tell it I have a non-binary child in the app.

     Finally a gender selection screen that doesn't make me angry!

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     Foone🏳️‍⚧️ (foone@digipres.club)'s status on Thursday, 08-Dec-2022 06:18:36 JST Foone🏳️‍⚧️

     in reply to

     So I shined a light through one of the stickers: there's no chip in there, but they are not consistent in transparency. I think they only metalized part of them.

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     Foone🏳️‍⚧️ (foone@digipres.club)'s status on Thursday, 08-Dec-2022 06:18:39 JST Foone🏳️‍⚧️

     in reply to

     So what I think is actually happening is that these stickers are conductive, and this thing is capacitive.

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     Foone🏳️‍⚧️ (foone@digipres.club)'s status on Thursday, 08-Dec-2022 06:18:40 JST Foone🏳️‍⚧️

     in reply to

     So here's the fun part:
     You know what's in the letters?

     Nothing. Just air. No NFC chips, no magnets.

   • Embed this notice
     Foone🏳️‍⚧️ (foone@digipres.club)'s status on Thursday, 08-Dec-2022 06:18:42 JST Foone🏳️‍⚧️

     in reply to

     So the letters have a little grey sticker on the back of them. I can't detect any magnets under them, so I guess I gotta remove it.

   • Embed this notice
     Foone🏳️‍⚧️ (foone@digipres.club)'s status on Thursday, 08-Dec-2022 06:18:43 JST Foone🏳️‍⚧️

     in reply to

     There's a mosfet and LED at the bottom of each letter, too.

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     Foone🏳️‍⚧️ (foone@digipres.club)'s status on Thursday, 08-Dec-2022 06:18:44 JST Foone🏳️‍⚧️

     in reply to

     There's an unpopulated 4-pin connector nearby. I wonder if this is for USB (in another model) or if it's for programming?

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     Foone🏳️‍⚧️ (foone@digipres.club)'s status on Thursday, 08-Dec-2022 06:18:45 JST Foone🏳️‍⚧️

     in reply to

     and our main chip is an nRF51822: That's a BLE/2.4ghz SoC from Nordic Semiconductors.
     It's a 16mhz Cortex-M0 chip, 256/128 kilobytes of flash, 32/16 kilobytes of RAM.

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     Foone🏳️‍⚧️ (foone@digipres.club)'s status on Thursday, 08-Dec-2022 06:18:46 JST Foone🏳️‍⚧️

     in reply to

     main chip and antenna on the upper left, a small chip + some passives for each letter, and a button in the top-right.
     It calls itself an SP-0042 Sensor PCBA, revision 12P5, from 2017.

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     Foone🏳️‍⚧️ (foone@digipres.club)'s status on Thursday, 08-Dec-2022 06:18:46 JST Foone🏳️‍⚧️

     in reply to

     So each of the chips for the letters are MC74HC4051 analog multiplexers/demultiplexers.

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     Foone🏳️‍⚧️ (foone@digipres.club)'s status on Thursday, 08-Dec-2022 06:18:48 JST Foone🏳️‍⚧️

     in reply to

     inside, it's one PCB.

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     Foone🏳️‍⚧️ (foone@digipres.club)'s status on Thursday, 08-Dec-2022 06:18:49 JST Foone🏳️‍⚧️

     in reply to

     The top part doubles as a storage unit for the letters and as a platform for the tablet.
     Interestingly the letters don't seem to be magnetic... I figured this would be using hall effect sensors or something similar

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     Foone🏳️‍⚧️ (foone@digipres.club)'s status on Thursday, 08-Dec-2022 06:18:50 JST Foone🏳️‍⚧️

     OKAY so this this the Square Panda spelling thing. The idea is that this interfaces with tablet apps for little kids to spell words, and it can detect what they spelled on it. I'm gonna tear it down.
     I'm gonna try adjusting the visibility for this thread after this so you should only see this one post.