deskthority

The pins I'm thinking about using, PB6 and PB5 do have PWM. I just wasn't sure you could mix LEDs in with columns or rows and didn't want to assume.

I was wondering if it's possible to mix LEDs with ports used for columns on the Teensy 2++ ? I know you can't mix rows and columns but am wondering if it's possible to mix LEDs in a port ?

Only need two LEDs for the design I'm working on, which opens up more pins for columns IF it's possible to mix ...

Thank you everyone, it's much clearer now !

The replies here made me go back and look at the PCB design again and to actually start following traces. Sure enough there are long columns in a few places.
Matrix-Revised.png

Now I understand how a " 6x22 " can fit on the ATMEGA32U4 by simply ...

Can someone post an example of how an 11 x 11 matrix might be wired to the Atmega32U4 ? I'm just not understanding how to fit 101 - 104 keys without splitting them up like the firmware builder shows. Not that far enough along in my understanding yet.

I guess understanding how the matrix is created is my issue then. I was under the impression that it should follow the physical layout of the keys in order to be valid ?

An 11 x 11 matrix would be perfect for the ATMEGA32U4 but I'm not understanding how an 11 x 11 would work if following the wiring ...

Forgive my ignorance on this and the rambling, I'm still trying to learn and wrap my head around designing a keyboard from the ground up.

Has anyone done a keyboard PCB using the AT90USB1286 ? I have no idea what the AU-ND and MU-ND designations mean and have no idea which one would be better ...

you do not need to include LEDS in the layout editor, you can set LED pins seperately at the bottom of the pins page


Perfect, thank you.

What doesn't make sense is the pins in the firmware builder do not match the pins on the ATmega32U4 Even when the ATMEGA32U4 is selected. They do match on the ...

Can anyone explain how the status LEDs are connected and assigned ? It's probably simple but I'm just not understanding what to select in the Keyboard Firmware Builder.

The first picture is a potential layout. The second picture is the wiring generated by Firmware builder. Third picture is the key ...

What I'm wondering now is where to find information on spacing for proper placement of the footprints on the PCB to make sure the keys line up properly and don't touch each other.

I'd like the pcb footprint placements to match the hole placements of the plate that swillkb spits out.

I just wanted to let you guys know how helpful this thread has been - I am also trying to put together a custom layout keyboard, and this has definitely answered some of my questions.
KB Layout.JPG
Do you all have any good resources for beginning with KiCad? I am very lost when it comes to the ...

OldIsNew wrote: I

tedfs3 wrote: What software are you using in the video that seems to be showing keys pressed ?

It's Aqua'S KeyTest. You can get it here: https://geekhack.org/index.php?topic=34670.0

Thank you. I tried the on screen keyboard in Windows 10 but it only registers Shift and Caps Lock.

What software are you using in the video that seems to be showing keys pressed ?

I'm just getting started in mechanical keyboards and am kind of bummed I missed V1 of these. They really remind me of the keyboards as a kid in the 70s and 80s. Really like that profile.

Well, I didn't explained myself very well. First, in a keyboard controller you will never use input and output in the same pin. Also, in the hypotethical case you first have to define the pin as the contrary state, it will never work like an input and an output at the same time.
I was just trying ...

Thank you for the explanation. I was under the impression you had to know what pins to use and had to manually assign them on the Pins page. That's what I get for over thinking.

I did read the thread on Box switches but have already bought them and kind of like the feel and sound the Navy's have. I ...

This is where I'm lost. I had no idea you could choose the pins yourself ? Thought you had to pick pins in some sort of order ?

This is what makes it so confusing...

What would you put it for the layout below using the Teensy ++ 2 ? That's really the only way I'm going to understand this I guess.

I chose the AT90USB 1286, Teensy ++ 2.0

Okay, so I'm clear.. In the example pic below, * on the left handed numpad would be
B2 + C0 on the board ( Row 2 + Column 1 ) ?

Okay, so the web page is showing the corresponding layout with how it would match up to the pins on the controller ? That would make sense but it's little details like that that get lost when trying to search and getting a bazillion hits with the word Matrix in them.

That is a huge help if I ...

I guess that's where the confusion starts to set in. Where are B0 and B7 coming from, the pins on the controller ?

I am not entirely sure how the matrix works but have a vague idea. Vague meaning I know when a switch or combination of switches is pressed, that results in a unique series of closed contact points being sent to the controller. Other then that, I'm lost.

My matrix would be slightly mirrored but not ...

Switches are NovelKeys x Kailh BOX Thick Clicks Navy. Looking at the data sheet it seems they need square holes but I honestly have no idea how they are supposed to "mount" to the plate with the square hole. It appears they press fit between the small tabs on the body ?

I am familiar with KiCad as ...

Not really sure if this is the correct spot for this, seems like the best fit between the choices to post in.

100% beginner here. My rabbit hole all started with wanting to find a decent, left handed Russian mechanical keyboard to learn the language with. Fast forward a month later and it pretty ...

Probably not tape, but just an insulator.

I don't have a source for the exact material but by the way you describe it, the backing you peel off of two sided tape might work. Cut to fit obviously. We have industrial two sided tape at work and the backing is a bit thicker than scotch tape but provides the properties you are describing.

Just ...

I literally just started trying to design my own set of Russian key caps, starting off from square one with absolutely no knowledge of layouts or keyboards in general about two weeks ago. Just wanted a full immersion Russian keyboard for learning the language and not finding anything like I wanted ...

This post made me join the board. Just getting into Mechanical and was searching for a Russian variant for language lessons. Google led me here.

Very nice find.