keyboard/zmk-config/notes.md

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2021-01-31 04:50:18 +00:00
# LEDs
Generic behavior for led on/off via gpio (see pocket type / mdk personal sources for ideas)
# Dyanmic Layer Actions
- look at hold tap implementation for inspiration (keymap file poprtion)
- hooks for BOTH activate and de-activate
- change underglow color
- fire key press
keymap {
compatible = "zmk,keymap";
default_layer {
activate-behaviors = <
&rgb_ug sethsv (128, 255, 64) &kp NUM_LOCK
>;
};
};
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# Hardware To Do / Notes
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## Mini mouse pad / track pad
- Adafruit itsybitsy nrf
- https://github.com/nuxiom/zmk/tree/60split
- ItsyBitsy lipo backpack
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- pins like nice!nano for quick swap of battery / removal of battery
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- 110mAh battery
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- soldered to short mill max socket for hot swap / removal from lipo backpack
- Largest trackpad ordered
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- Blue led indicate charging status (same as nice!nano)
- Dotstar red if unpaired
- Dotstar yellow if disconnected
- Dotstar green if connected
- Dotstar blue if pairing
- Push and hold button to clear BT profile
- Tap button to connect to default BT profile
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# VS Code Documentation
- Command Pallet -> Run Task -> npm -> Shows list of npm build tasks for the docs
- code @ the container command line will open a file directly within code on the main machine
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# Workspace documentation
finalize devcontainer-setupworkspace branch, may have existing PR open
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# Mouse Keys
- see keymap for codes
- constant movement / accellerated option
- default accel mode (standard if unspecified)
- default speed mode (standard if unspcified)
- key code for changing accel mode (slow/standard/fast)
- key code for changing speed mode (slow/standard/fast)
- constant speed code that will momentarily activate constant speed motion
- accell speed code that will momentarily activate accell speed motion
- toggle to flip between constant and accell modes
2020-12-15 03:46:21 +00:00
3:51 AM
]
fischkopp
:
@innovaker what would it take to add mouse keys?
[
5:36 AM
]
innovaker
:
Hi @fischkopp, I don't believe we've spoken before?
1. Implement a mouse report (I've already done some groundwork for that).
2. Determine appropriate behaviours and implement them.
3. Investigate into whether the current peripheral-to-central communication channels provide the necessary prerequisites, and if not, improve it.
4. Probably need to implement a system that sits in-between the behavior and the reports which caters for inputs from multiple sources and amalgamates them. I've been told this is a vital aspect that can be easily overlooked.
It's fairly easy to hack out a proof-of-concept for this, but trickier to engineer the system(s) we should be aiming for.
Are you looking to get involved?
[
5:37 AM
]
fischkopp
:
Yeah I'm interested in that
[
5:38 AM
]
fischkopp
:
but i'm actually not sure I understand what makes mouse key implementation so complex
[
5:38 AM
]
innovaker
:
Most of the steps require consideration of the big picture (because this is effectively a new type of input that we haven't built around yet, so we consider how it all fits together), but if you want to get a head start and make a prototype that would be really useful.
[
5:39 AM
]
fischkopp
:
(not really usually doing much embedded work besides getting android to run on platforms)
[
5:39 AM
]
innovaker
:
my understanding is that it's the multiple inputs to single output + acceleration which are the complicating factors
[
5:39 AM
]
innovaker
:
there's only one pointer output - with axes X and Y
[
5:40 AM
]
innovaker
:
but there could be numerous inputs to that, both sensors (controls) and keys which could need unifying
[
5:40 AM
]
innovaker
:
and you're doing binary to linear conversion using a stateful system that requires "natural" acceleration to feel right
[
5:40 AM
]
innovaker
:
so effectively a curve (perhaps even with a degree of hysteresis? I don't know)
[
5:40 AM
]
innovaker
:
none of which is currently supported by ZMK
[
5:42 AM
]
innovaker
:
if we had a working prototype to iterate on, it would make it easier to nail down those aspects and design/implement the necessary prerequisites into ZMK.
[
5:42 AM
]
innovaker
:
I just haven't got onto it yet (there's other priorities at the moment).
[
5:42 AM
]
innovaker
:
You're most welcome to get it kick started tho!
[
5:43 AM
]
innovaker
:
and trail blaze it if you're capable
[
5:44 AM
]
innovaker
:
I doubt the naive solution of "hold UP to make Y increase at a constant rate" would be practical from what others have told me, but that's probably the first objective/target to shoot for. It would give us a better vantage point for moving forward.
[
5:49 AM
]
innovaker
:
any thoughts on that @fischkopp?
[
5:50 AM
]
fischkopp
:
i don't know I personally like the constant rate more
[
5:50 AM
]
innovaker
:
as I say, that's the first goal post/marker, you're welcome to implement it
[
5:50 AM
]
fischkopp
:
I'll just need to add support for my keyboard mcu first
[
5:50 AM
]
innovaker
:
just keep in mind the big picture as you make design choices
[
5:52 AM
]
innovaker
:
there are also others interested in this area, so if you break ground then I'll give them a shout so that they can be involved if they want to be