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Tetent [gd0090]

An input device for quickly entering text and equations, gaming, drawing and cursor/6DoF movement.

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Tetent is the controller for my PC, Teti (gd0022), with the goals of USB Type-C (higher bandwidth, reversible, smaller and alternative mode support).

Software predictions, word/phrase dictionaries or biological thumbs are NOT required for this quick data entry device. It can also be fully used with a single hand.

The alphabet and common symbols are accessible from Finger2-4, and shift and spaces are handled by Finger5 (the smallest one). Thus, text from "iPhone" to "well the" to "?!!!?!?" to "Tetent" can by typed in 1 chord, without needing to add it to a dictionary file first.

Media

Inspiration and/or examples of working principle


Imagine that each slider has the features of the below knob:

An LCD backlight was also considered:

Navigation

The title tag system is explained here, and the table is updated when a change occurs. Notable logs have bold L# text.

L1
[M] Status
L2
[A] Current Layout:
L3
[R] Blackberry Trackpads
L4
[P] Blackberry Trackpads
L5
[T] Alternative Mouse Control
L6
[P][T] Finger distance and other changes needed
L7
[T] Feature Thoughts
L8
[M] The Fusion 360 Grind
L9
[T] Test Driven Development?
L10
[T] Memory LCD
L11
[T] 3x5 Buttons, weight adjustment and joystick issues
L12
[T] 3x1 keys
L13
[T] Starting the new layout
L14
[A] New layout for the new Tetwin Switches
L15
[M] Expected Key Placement of Motorised Switches
L16
[M] Concept with motorised Tetwin Switches
L17
[M] Concept2 Revision
L18
[M] Concept2 refined
L19
[A] A faster, new layout (for the Tetrinsic Switches)
L20
[M] Updated file
L21
[T] Finger massaging keyboard
L22
[T] LED ring
L23
[A] Details before 5th Oct 2022
L24
[T] Tetent TestCut and Project Worries
L25
[A] Main project moving to Tetrinsic [gd0040]
L26
[T] Use gd0040 concept
L27
[M] Concept3 with Tetrinsic Gen 2X2 and basic UI idea
L28
[R] Rear-facing / backwards keyboards
- Also hyping myself up to continue the project
L29
[P] Tweaks applied
L30
[T] More readable UI concept
L31
[T] Some improvements I'm implementing
L32
[M][A] Refinements to design and layout
L33
[R] Input devices
- Interesting devices like a trackball remote or a cube keyboard
- Tried Elecom Relacom
L34
[T][M] Tetent with 1440px screen?
L35
[A] Bigram layout tweaks, and a virtual typing attempt
L36
[A] A solution... is rejected, due to aesthetics.
L37
[M][P2] Quad Symmetry
L38
[A][T] External Look, Locked.
L39
[R] UMPC idea: Leti
L40
[T] 1440px use case... fails.
L41
[T] Tetent now seemingly unavoidable.
L42
[A] Slight TrueGame layout adjustment
L43
[M] Tetrinsic Taic
- Solar panels integrated into Tetent
L44
[M] LCD Aesthetics
L45
[T] 2.4mm vs 3.2mm ball chain
L46
[M] Dual Screens? Dual Speakers.
L47
[P] Concept-half print
L48
[M] New design with 18.75mm spacing
L49
[R][X] AirBerries: Learning a custom keyboard layout
- Discovered eteeController
L50
[T] Split Tetent again?
L51
[M] Thumb grip failing...
L52
[X] AirBerries: ZEV-XS Layout
L53
[T] AirBerries: Try Taipo?
L54
[M] Ideas for Tetent Concept4
L55
[R] 3.95 inch 480x480 or 4.12 inch 720x720 px display?
L56
[M] Concept4 modelling... started.
L57
[M] Concept4 80mm Square
L58
[M][R] Concept4 90mm Square and 5" square display
L59
[T] Focus on solar version? Include reverse PDLC film?
L60
[R] Sunpower 125x125mm solar cell?
L61
[A] Tetent Solar Edition: Tetrescent [gd0150]
- #Tetrescent [gd0150] 
L62
[R] Finds from r/PeripheralDesign
- Uncokeb and Palm Pro
L63
[A] Details page before 12 Jan 2024
- Contains information of how typing is expected to work

Preface

[2024 - Jan 13]

As with #Teti [gd0022], the goal of Tetent is to optimize my pipeline from idea to implementation. The vast majority of my tasks are PC based, but that doesn't necessarily mean that fast text entry alone would be enough.

Tetent is primarily for #Teti [gd0022], and it's a good idea to think of Tetent as an input device for Teti similar to how the PS5 DualSense Controller is an input device for the PS5. Most games designed for a specific console can be fully controlled using the standard controller. Playing Forza with a steering wheel controller feels more suited to the game, but the game can still be fully played with the standard controller.

Input devices I'm trying to consolidate into a "PC controller":

  • My keyboard
    • My WPM is 60 and it seems like it'll take many years of continued effort to double that. Even if I got to 120WPM, it still would be too slow. After thinking of the R.O.I. of the continued practice, it just doesn't make any "time-financial" sense.
  • My mouse
    • I'm almost never on a hard, flat surface anyway.
    • Even if I was looking for a new mouse, there's no ambidextrous 12-side-button "gaming" mice.
  • The 3D mouse that doesn't exist yet
    • I'd like...
Read more »

  • [A] Details page before 12 Jan 2024

    kelvinA01/11/2024 at 11:30 0 comments

    I'm finally starting to revamp and equalize all my details pages so that the projects can be better understood and information hidden within the depths of logs can be more easily found. The below is the old Details page.

    Notable Tetent projects, sorted by project log count:

    Tetent is primarily for #Teti [gd0022], and it's a good idea to think of Tetent as an input device for Teti similar to how the PS5 Dualsense Controller is an input device for the PS5. 

    I'm looking to control my PC from the perspective of a console. Most games designed for a specific console can be fully controlled using the standard controller. Playing Forza with a steering wheel controller feels more suited to the game, but the game can still be fully played with the standard controller.

    Input devices I'm trying to consolidate into a "PC controller"

    • My keyboard
      • My WPM is 60 and it seems like it'll take many years of continued effort to double that. Even if I got to 120WPM, it still would be too slow. After thinking of the R.O.I. of the continued practice, it just doesn't make any "time-finacial" sense.
    • My mouse
      • I'm almost never on a hard, flat surface anyway.
      • Even if I was looking for a new mouse, there's no ambidextrous 12-side-button "gaming" mice.
    • The 3D mouse that doesn't exist yet
      • I'd like to be able to select UI elements that are behind other elements, such as shapes in PowerPoint or edges in Fusion 360.
      • Likely more suited for Mixed Reality experiences.
    • My Spacemouse / 6-axis mouse
      • I've got an old Space Explorer and it takes up my limited desk/table/lap/reachable-floor space and I constantly have to be switching between it and the keyboard.
      • I've also tried to use this as a 2D mouse, and wrote about my experience here.
    • The touch input of my touchscreens
      • I really like touchscreens but the issue with them is the lack of precision, occlusion and the abundance of fingerprints.
      • The lack of precision means that I need to spend more time retrying to press a UI element.
    • My drawing tablet I rarely use
      • I mainly got it as a touchscreen input alternative for Teti for when in triple monitor mode and for writing digital maths notes.
      • Being able to sketch out design ideas with pen pressure is also ideal.
    • My MIDI keyboard I rarely use
      • It's even larger than my keyboard, and I didn't like the key travel distance.
      • I'd like to be able to capture melody ideas wherever inspiration may strike.
    • The XBox controller I rarely use / PS5 controller I never had
      • I think it'll be nice to bring over some of those DualSense controller haptics over to Tetent. 
        • It's unlikely to be as sensory as haptics across the entire palm, but it's likely better than 0 haptics at all.
      • Ideally, Tetent will be able to control some racing game or Minecraft ergonomically. Additionally, whilst I don't play any FPS games, being able to quickly and accurately click on GUI elements seems similar.
    • The finger massager I never had
      • Every slider is motorised; might as well also use them to try and mitigate any fatigue while typing.
    • The ASUS laptop dial / Surface Studio dial I thought was really cool but have never used.
    • The high bandwidth VR controller that doesn't seem to exist on the market (as of 2023) for working in virtual reality.
      • I've got to be ready for when a Pimax 24K or similar headset finally drops.

    Fast typing method

    I like to think of Tetent's default layout as the next Pokemon evolution of chording keyboards: "parallel entry". 

    For a normal keyboard, which would be "serial entry", you'd have to make sure all fingers are perfectly timed so that the characters appear in the correct locations of the word/sentence. Failure to do this causes a few typos ("hte", "ot", "wit hthe", etc) and also makes it somewhat difficult...

    Read more »

  • [R] Finds from r/PeripheralDesign

    kelvinA11/13/2023 at 20:06 0 comments

    Over 2 weeks ago, I discovered r/PeripheralDesign, a subreddit that finds many atypical inventions and products under the umbrella of peripheral devices. Yesterday, I decided to scan through older posts for research and I found some notable projects:

    Uncokeeb

    This project is very notable due to the many similarities with Tetent, and was also made in the persuit of speed and an alternative to stenography. 

    What I'd call "input elements" is what the creator calls "modules", but it's used to select any one of the 26 english letters with a single finger. Side buttons (which are levers to real buttons) are used, so I'd imagine there's less of a risk of Repetative Strain Injury (RSI), unlike #Tetrinsic [gd0041] where the fingers predominantly slide up and down its length. The thumb has fewer keys, and since there's only 27 non-zero states available on the modules, punctuation is put on the end of the word. The character map can be seen here. Just as I plan to do, the fingers only move the distance of about 2 standard key spacings in their design.

    u/bluesocarrot also listed the pros and cons of what they've managed to make. As predicted, the fact that the same letter is on each finger contributes to a low learning curve. On the other hand, due to the width of the modules, they need to stretch their hand out quite a bit, and the 27 states also makes it hard to adapt to non-english alphabets.

    To me, the current #Tetrescent [gd0150] concept looks like the "iPhone 15" of this "iPhone 1" prototype; like if you got a bunch of people together to work on and iterate the Uncokeeb across a decade. Obviously, if there's an "iPhone 30" concept somewhere out there, I'd like to know about it. At the same time though, Tetrescent is still just a concept, and I've seen those iPhone 5 concept videos...

    Palm Pro (link1, link2)

    This is notable because I've been trying to find evidence of a keyboard in the past that sensed force. This keyboard is also wearable, but it's not a chorded keyboard. 

    This keyboard uses vibration motors to provide the haptic sensations required to use this kind of device, and it enforces that Tetrinsic needs to do the same to ensure fast and accurate typing.

    Force sensitive resistors are used. The reason I haven't used them for Tetrinsic is partially to do with the ever-increasing length of sensing area, and the other reason was because I was thinking that It'll be hard to get precision since they're non-linear and not made to as tight of a tolerance as load cells.

  • [A] Tetent Solar Edition: Tetrescent [gd0150]

    kelvinA08/25/2023 at 11:27 0 comments

    There's 1 single thing this project needs to do to be called "Tetent", and that's to fit into #Teti [gd0022]. Concept4 doesn't fit, thus the solution fails. 

    I still like the idea of a solar powered input device, so I've created yet another spinoff project:

    #Tetrescent [gd0150] 

  • [R] Sunpower 125x125mm solar cell?

    kelvinA08/24/2023 at 12:29 0 comments

     Yesterday, I discovered a new solar cell that has some benefits and drawbacks:

    As you might be able to see, one of the benefits is that there are no lines on the top of the solar cell. This ties into the second benefit, which is that both the positive and negative connections are on the bottom of the cell. This greatly aides in turning this solar cell into a solar panel:

    They're also very efficient -- partly because the entirety of the cell can absorb light energy -- with the panel in the first image acheiving 21.8% efficiency. I'd also imagine that, for a consumer DIY project, it would make Tetent look more professional since solder joints would be hidden on the back. There's also some 3.6W solar cells for a similar price but have visual defects:

    I'm not sure the extra 0.3W is worth it over having to see a defect for the lifetime of the device. This 3.7W panel is the highest efficiency solar panel I've found in this size:

    The main drawback for my application is that the smallest square is 125 x 125mm, and the solder pads are at the right edges of the cell, meaning that it can only be cut into 1/2 or 1/3 segments:

    I will admit that, ergonomically speaking, the increased space would be more comfortable. Additionally, the larger the solar absorbing area, the more likely it would actually make a noticable difference to battery life, especially in sub-ideal lighting conditions; a 125mm panel would generate 56% more power than a 100mm one.

    I'm just concerned because the final dimensions of Tetent would be sometihng like 190 x 190mm.

    [25 Aug] This is a render with the panel:

  • [T] Focus on solar version? Include reverse PDLC film?

    kelvinA08/21/2023 at 12:38 0 comments

    Since 

    • I can cut-to-size any photovoltaic cell I desire,
    • creating a MIPI circuit probably takes longer than a photovoltaic circuit,
    • I'd need to source and/or make animation files for the screen and 
    • the screen would reduce battery life instead of increase it, 

    I'm thinking of focusing on the solar version going forward and, once I've got a Tetent that works, consider engineering an LCD backlit solution.

    It might also be possible to find a reverse mode PDLC sheet and, coupled with LEDs on the edges of the acrylic / lexan window, allow the choice of absorbing ambient light energy or a solid white LED backlight. The reason for the inverse/reverse mode sheet is because normal PDLC film requires energy to become transparent. This is the kind of PDLC I need:

    It seems that the name for this material is "PNLC film":

  • [R][M] Concept4 90mm Square and 5" square display

    kelvinA08/20/2023 at 18:27 0 comments

    So now I've printed the 90mm, though I've kept the Thumb 2mm from the edge of a 75mm square:

    This is in the event that I use the 4.12" screen. I wanted to see what kind of bezel would be apparent.

    It seems that a 90mm square is large enough for my hands, so the next step was to see if there was any display that was that size. The good news is that there's a single panel that is the size: S050QWS115EN

    It seems that, when the cable is folded, this screen would be max 4.4mm. It also seems that it's straightforward to connect to a PCB as the pinout has a single power pin, MIPI related pins, 2 backlight pins, a reset pin, some "LCM_ID" pin and the rest are either GND or NC.

    The slight issue is that this screen is shockingly recent -- the datasheet was finalised on the 14th of June this year. The price is also "Enquire Now", though at least the MOQ is only 2pcs. I've sent a message to Dwin, the guys that seem to take screens like this and turn them into HMI's, to see if they're developing anything (because if they are, I can focus on the solar cell in the meantime).

    The backlight takes 18V and uses up to 2.3W, but the good news is that the screen acheives a minimum of 900nits, meaning that it's viewable outside. If I ever use this panel, I'd have to make sure to have something like a high frequency backlight circuit so that low luminosities dont flicker.

  • [M] Concept4 80mm Square

    kelvinA08/20/2023 at 14:04 0 comments

    So I've modelled and printed an 80 x 80mm area test print. The thumb Tetrinsic is 4.8mm higher than the finger Tetrinsics.

    I might as well get the bad news out of the way. When using all 4 finger Tetrinsics, my thumb feels like it has no space and Finger5 is very close to rubbing on the edge of the Thumb Tetrinsic on the other side. This diagram I made in PowerPoint helps illustrate this:

    Tetent is already too long to fit in the bottom section of Teti, and adding another 20mm to the bounding box in X and Y does not help!

    The good news is that 4-fingers / 3-fingers-and-thumb configurations line up without anything feeling off-centered or misaligned. It also seems like I'd be able to get away with all 5 Tetrinsics if I position Tetent at an angle:

    If anything... it feels like the actual strat. Still need a tiny bit more thumb space though...

  • [E1][M] Concept4 modelling... started.

    kelvinA08/16/2023 at 09:45 0 comments

    I haven't fully modelled Tetrinsic Concept3.2X2 yet, but I've modelled enough to start modelling Tetent Concept4.

    Conveniently enough, I was able to download a .stp file of the 4.12" HMI display on Dwin's website and I managed to find a nice paint-line background to go onto it.

    I like that this screen has a galvanised bezel, because it looks industrial (makes sense since it's "Industrial Grade") and it makes the non-inky blacks of LCD less apparent.

    Then I placed components where they needed to go. To my suprise, if I just crop the square that has the screen and rotate by 45 degrees, I get:

    Which reminds me of a very calming game I played years ago: Strata

    Most influential £2.49 I ever spent.

    Obviously, it could aslo be rotated 180 degrees so that more of the screen area encompasses the usable lengths of Tetrinsic, since Finger3 especially could use the extra 5mm:

    Also, that Strata-esque view only works when looked straight above. When viewed from multiple angles in perspective, the chin-under-thumb configuration is better:

    Anyway, I saw the above render for the first time and I was quite shocked because this looks like the kind of thing I'd expect to see as Pinterest concept inspiration and not "the best path forward considering my other conceptual prototypes failed in one way or another".

    [18 Aug

    If I focus on the active area (pretending that it exists in a vacuum) I can't envision a more ideal solution from an ergonomic and aesthetic perspective, whilst still being geometrically valid. The active area is probably 80*75mm (X*Y), as it feels that my Thumb1 is more comfortable with that extra 2.5mm of space.

    Here are the reasons why I belive this Tetent concept is a good solution:

    • The design is ambidexterous and the Tetrinsics line up with my fingers.
    • The ball-chains are not prickly on my fingers and I can sustain grip (even with fingernails). 
      • Additionally, the ball-chain is made from stainless steel, so it's less likely to wear down compared to plastic keycaps.
    • The LCD, used as dynamic RGB backlighting, is a rather sharp 247 PPI and is almost perfect in size.
      • (74mm / 4 = 18.5mm, and the Tetrinsics have a spacing of 18.6mm.)
    • All 5 fingers could be used if desired, but this design also feels ergonomically ideal for 4 fingers or 3 fingers and a thumb.
      • The current expected layout still only needs 2 Tetrinsics for text entry, so any user is free to utilise whatever combination is most comfortable at any point in time.
    • A lot of the attributes that would be fixed in place for a traditional keyboard would be software adjustable, such as finger stagger, tactility/haptic feedback and button count.
      • In a way, it's like a more physical version of an On Screen Keyboard.
    • It's possible to smoothly slide to the next key without having to have one's fingers hover between keys.
    • The data gathered is analog, so it's possible to emulate a game controller, drawing tablet, spacemouse or MIDI keyboard.
      • The goal isn't for Tetent to feel like those devices, but to allow input of the same kind of data. 

    With this in mind, I can now assume that this is the goal. Thus, I've been trying to backtrack from this solution towards an implementation to see if I could obtain something smaller than the concept above. Unfortunately, I haven't, so I'll have to continue with the design I've already got in the works.

  • [E1][R] 3.95 inch 480x480 or 4.12 inch 720x720 px display?

    kelvinA08/12/2023 at 10:08 0 comments

    Just like when solving mazes, it seems that I like to start from the end and work my way backwards. I've just talked about how I'm planning to try and interweave a 5th Tetrinsic and how the visible area is likely going to be around about 75 x 75mm.

    Well I did a bit of a look into it and there are 4.0" 480 x 480px and 4.12" 720 x 720px displays on AliExpress, and the latter is generally better for the following reasons:

    • The active area is a perfect square. 
      • The 4.0" is an entire 1.68mm shorter in one axis for some reason (see image below), though in practice I doubt anyone would be able to notice. 
    • The active area is 74 x 74mm, which is very ideal as it closely matches the expected area.
      • Still, the size difference between the two is probably not noticeable:
    • It is higher resolution, but more importantly, it has a higher colour depth of 16.7M colours instead of 262K. 
      • This is important as the animations I'm planning to play involve gradients, and a low colour depth can lead to banding. Dithering can mitigate this effect.

    The drawbacks is that I either have to deal with MIPI DSI or spend about 2X on the 4.1" HMI edition which is also 6mm thick. The price difference is less of an issue than the thickness, considering each Tetrinsic is like £25/each.

    Well that was the research I gathered yesterday anyway. Now I'm writing this project log, and while I was looking for the HMI 4.0 inch LCD to screensnip, I actually found this:

    It seems that the HMI version only does 16-bit colours, but the screen itself supports 24-bit. For comparison, the image below is for the 4.1" LCD:

    With this new discovery (that I might not have found if I wasn't writing a log about it), it's now looking that the 4 incher is the better solution. However, I did some more looking into it and there's actually a fully featured board that uses the ESP32, but it seems that a full screen refresh is about 6FPS and smaller changes are about 30FPS:

    It also doesn't actually do 24-bit, but 16 bit. I actually wonder if the workload could be split up whereby 3 Tetrinsics only focus on 1 8-bit channel. Still, the best case scenario might only be 36FPS (6FPS x 2 [since output decreases from 16 to 8bit] x 3 Tetrinsics).

    If you listen to the creators of keyboards like Finalmouse Centerpeice and Flux Keyboard, it becomes apparent that something with some actual rendering power (and not a microcontroller) is likely needed for what I'm looking for. However, a Raspbery Pi 0 (which I've never seen for £5) + HDMI bridge sounds a tad overkill. This is probably why Dwin -- the guys making those HMI's -- actually created their own chip to run the displays:

    Looking at the datasheet, it sounds like the engineers are eeking out an extra 8% out to actually run the 720px screen.

    Thus it seems that the best solution with the highest end-product quality with the lowest developer effort is stil the 720px screen, as long as I can actually fit it in the space available.

    It's going to be tight, and the resulting Tetent concept probably won't look as futuristic since the screen surface would be very close to the bottom of the Tetrinsic tubes.

    [14 Aug

    Assuming that I don't have to constantly feed in new data for a static image, it may still make sense for the parallel RGB option for showing still images, just like a standard desktop wallpaper. The plan would be to 

    1. Fade the screen to 0 brightness.
    2. Serial-to-parallel shift the data of each channel.
    3. Fade the image to the original brightness.

    It certainly could help reduce power consumption, as the 4.1" HMI is claimed to use 12V 0.08A (0.96W) with the backlight off.

    I also searched "ESP32 MIPI DSI" and I actually got a result: ESP32-P4. I remember first hearing about this chip and then, upon hearing that it didn't support any radio frequencies, I (and it sounds like other commentors) had a bit of a Dead On Arrival sentiment. Now,...

    Read more »

  • [M] Ideas for Tetent Concept4

    kelvinA08/09/2023 at 09:48 0 comments

    [14:00] Since the handheld-ability of Tetent is now less likely, due to Tetrinsic's ball-chain needing a wider turning radius, I was thinking of making this concept a seperate project or calling it #Tetent TestCut [gd0139]. However, as long as it's a device that fits in the space provided by #Teti [gd0022], making it a new concept of Tetent is fine.This is a concept I've had in my mind and quickly just sketched up now because I've got a new Tetrinsic idea and I thought it'll help explain things. 

    The new Tetrinsic strategy is to actually have the chain seemingly raised from the surface:

    The squares will have MIP LCDs in them, but only on one side as the design is symmetrical. It means that only 2 screens have to be bought.

    I'm not a fan of what the side design looks like compared to the first concept idea, but I do like the idea of one long opening slot instead of 4 individual ones:

    [16:50] I think I've gotten something that I can accept:

    Still though, it's kind of dissapointing that I called this entire project "Tetent" becuause I wanted a tented keyboard and yet a design that allows for tenting is at the bottom of the requirements list. It's just that I rarely work at a desk, and designing for it to work on varying/uneven surfaces sounds like quite a challenge.

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Discussions

DavidBevi wrote 04/27/2023 at 09:31 point

Ahoy! I'm the guy of the PC form factors concept on Reddit. This is cool, and I guess a lot of people could find it cool, but it's really hard to "get" Tetent at a glance. I'd suggest you to improve your presentation, to get more attention: show pictures with the mock-up being held/used, with the mock-up next to a laptop or tablet, show moving parts by using ghost in-betweens and arrows, embed a text with some highlights of the product inside the images. In short: copy the way every seller shows their stuff on Amazon, eBay, AliExpress.

Also reading your last update about Tetent with embedded FW mobo made me wonder, would it be possible to realise 2 JoyCon-like Tetent modules that slide directly into the Framework? It would be cumbersome with a laptop, but it would pair well with something like the Cooler Master + Framework mainboard case (or my Portable Tower concept, hehe).

Finally, personal preference: I'd rather see what's about to be typed with Tetent near the place I'm typing it, on the same monitor. Do the simplest thing first though, I can see how writing/maintaining SW for all possible host machines is a hightmare!

  Are you sure? yes | no

kelvinA wrote 07/20/2023 at 23:42 point

For some reason, I wasn't notified of this comment so I've only just seen it now. 

I also agree about the presentation, and wanted to make an AliExpress-esque product page, but only when the first working prototype actually existed. If you've looked into Tetent's history, you'd see that it can and _has_ radically changed based on Tetrinsic [gd0041]. Due to this, I decided to wait until I had an electromechanically complete CAD model of Tetrinsic beforehand. Thankfully, I've crossed that milestone just a few days ago.

I've also recently seen that new Cooler Master case and I think it's a solid idea. I imagine it would also integrate USB hubs so that you still have access to a range of IO options. The original aim for Tetent was actually to be a keyboard that slotted into a 7" laptop called the One Nextbook GX1. Anyway, it's potential applications like this why I've tried to make Tetrinsic as modular-able as possible, so that the community can create new projects similar to how they'd integrate a TFT display or keyboard switch. It's also why the layout I've designed is somewhat finger-count agnostic. 

I also agree that the most ideal place to see the Tetent pre-input is perhaps some ghost text on the right side of the cursor, with a small always-on-top window being the next best thing. Obviously, I need to know if Tetent is even ergonomically viable first, but hopefully I can become some 10X developer with it and write the software to further improve it. Software usually isn't constrained by the laws of physics, unlike hardware. Software _can_ be constrained by the limits of the hardware though, so I'm trying to set my future-self up as much as possible with the design of Tetrinsic.

  Are you sure? yes | no

RunnerPack wrote 10/03/2022 at 14:52 point

I'm very intrigued by this project, but I can't find any mention of the motor used.  Could you at least fill out a preliminary/partial components list, please?

  Are you sure? yes | no

kelvinA wrote 10/03/2022 at 14:56 point

I can't do a component list right now because it seems every other log changes a component. For the motor (and other Tetrinsic [gd0041] related things), I'd direct you to https://hackaday.io/project/184180-tetrinsic-gd0041

  Are you sure? yes | no

RunnerPack wrote 10/03/2022 at 15:21 point

Weird… I thought I was looking at, and commenting on, that project 😅 Sorry!

  Are you sure? yes | no

kelvinA wrote 10/03/2022 at 22:16 point

😅I thought so too. I was thinking "How could I have missed the link for the motor in the log when I discovered it? Wait, this isn't the Tetrinsic page."

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