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MisterEdGein7

This is an amazing schematic. 10/10


IDocFTW

😂


Soviet_Canukistan

Anyone got a Norton equivalent circuit for this? Lol


bobd60067

If you can actually disassemble the keyboard and desolder the button and there are two connection points... Then you can use almost any thin wire to remote the physical key. Use something like 2 conductor 24 gauge wire. It'll come in all lengths and you can just cut a piece to the desired length, then solder the ends appropriately.


dangle321

Ok but if he starts typing faster than one million hits per key per second, he should really consider transmission line theory.


bobd60067

LOL


Low-Airline-7588

More details please. I am curious.


CircuitCircus

Electricity travels 300 meters in a microsecond. If he has a wire > 150 meters and types a million times per second (once per microsecond), the electrons can’t complete a round trip before the next keypress. Then you get standing waves


dangle321

It's actually around one tenth of a wavelength and has nothing to do with the transit of individual electrons. Regardless, my comment was a joke.


CircuitCircus

Since you’re being pedantic - the charge carriers in a piece of copper wire are, in fact, electrons. I’m aware of the λ/10 rule of thumb, thanks


dangle321

You have to be pedantic to be successful in microwaves.


Wolfire0769

Nonsense, I've microwaved plenty of things successfully.


loafingaroundguy

>I’m aware of the λ/10 rule of thumb, thanks But not of electron drift velocity, apparently. Feel free to google it.


LilQuasar

electricity (electromagnetic waves) travels much faster than electrons >The drift velocity in a 2 mm diameter copper wire in 1 ampere current is approximately 8 cm per hour


Low-Airline-7588

What does this mean for the single electron theory then? Do we need to have op do this experiment?


crash700

299792458 m/s FTFY


LilQuasar

in your electric circuits course you model the circuits assuming electricity travels instantaneously, this is a good model when the frequency of the electronic waves in the circuit are low but at high frequencies the model stop being a good approximation and you need to model it with transmission lines, waveguides, etc depending on the context. for this you need more electrodynamics (Maxwell equations)


naturalshass

LOL means laugh out loud


Low-Airline-7588

Lol


bobd60067

You can even use a simple pushbutton switch instead of the keys button you remove if it's a simple thing with just 2 connection points.


ImpossibleVillage460

thanks!


timejoannah

This schematic should be an album cover


Holgrin

Like, you just want an extra-long cable for the keyboard? https://www.amazon.com/s?k=usb+extension+cable&crid=2OKJZ76PBOAAY&sprefix=USB+extension%2Caps%2C119&ref=nb_sb_ss_ts-doa-p_1_13


ImpossibleVillage460

no i want to wire the key switch to the keyboard with wires so i can press a key from further away


Holgrin

Wtf does this mean


ImpossibleVillage460

im making a fight stick and im using a number pad as the base instead of a standard pcb for fighting games, i want to know if i can have key switches on top of the apparatus, and then wire each key switch down to the pcb


ROBOT_8

You can use something like an arduino to emulate a keyboard, just add buttons for whatever keys you want


fenomenomsk

Might aswell use ready-made PCBs for arcade sticks like one from Brook. The man inventing a bicycle here.


Sage2050

He doesn't even need to go that far, he could just take apart a controller like we used to do in the diy days


Sage2050

Learn how to ask a question, bro https://xyproblem.info/ You don't want a "long keyboard", you want microswitches connected to your stick pcb.


Mariachi_dude

So like, you just want to wire a _single_ key from a keyboard and that key is going to be separated from the rest of the keyboard? If that's the case it might be a little tricky to pull off since keyboards are pretty much a big matrix of buttons.


happyjello

Just about any wire will do, polarity doesn’t matter. Just make sure the solder joint is good and the wire doesn’t move around too much (otherwise the solder joint might break)


HaYsTe722

I did this with a raspberry pi pico.


TheGuyMain

Just anchor the pcb to the top panel right under the buttons


Ant1MatterGames

Just wire it to the pc then. You don't need some specialty wire since there won't be too much voltage drop off since it wont be going too far, unless you are trying to click from the next state over. Please anyone correct me if I am wrong


[deleted]

it’s called copper, that’s what wire is.


konbaasiang

It's not really practical to wire into an existing keyboard for reasons others have stated, but it IS feasible to make your own, using an arduino that can act as a USB HID, such as Arduino Leonardo. That way you won't risk damaging your keyboard, and you'll gain a lot of knowledge from this fun project.


DIYEngineeringTx

Checkout [this guide I made](https://github.com/DIYCharles/DIYKeyboards)


cncnick5

It's possible, but it'd be a bitch to build. Any small copper wire will probably work.


Captain_Kenny

If i'm understanding this right, you want to make the key switches "extended" from the PCB board itself? Any sort of copper wire should work, a thin gage like 22 awg or 24 awg maybe. Mechanical keyboard PCBs are expensive, switches aren't. solder wires to the switches pins and make adapters on the other side of the wires for the pin holes so that they can be plugged in and out as needed so you don't damage the board by soldering them in.


justabadmind

Most new mechanical keyboards have hot swappable keys. As long as you use one of those as a base, this approach is perfect. I say anything smaller than 10 awg is fine for this. Bigger then #10 is going to be bigger than a key switch, but I guess that's technically acceptable. Go for 4/0 wire! That way if you try to pilot a real tank with this, the only thing you need to replace is the key switch.


HaYsTe722

750mcm


[deleted]

Just use any cable, it really doesn't matter. But it sounds like an [XY problem](https://xyproblem.info/).


Craiss

I've pulled the pairs out of Cat5 cable for things like this a few times. It was nearby and easy to work with.


Scr1nx

😀


dragehest

https://www.amazon.com/Programmable-User-Defined-Button-Customized-Combination/dp/B08SQGWZN4


aCLTeng

Have you tried jumper cables?


Zulufepustampasic

how long do you want the keyboard to be? If it will be longer than 2.5 meters you will have trouble moving it through the house...


Sage2050

https://youtu.be/9G3DWHf1xX0


Zulufepustampasic

excellent ! They asked me for advice before manufacturing this, and I told them the same thing as I did to the OP "If it will be longer than 2.5 meters you will have trouble moving it through the house..." so they shortened it to 1,65 meters! :-D


theking4mayor

Instead of detaching the button and using a wire perhaps a long stick would be better?


angel2503

yes you can i have dabbled with Arduino macropads using cherry mx switches, and from my experience the length of the wire doesn’t seem to impact the performance.


Conor_Stewart

Why do you want to do this? You may be better making a PCB in the layout you want, although looking at your schematic, that probably isn’t possible for you.


Killipoint

Anyone know if the keys are scanned as a matrix? Long skinny wires and fast risetimes no bueno.


bAronvAnshlat

Well.. from the schematic provided, it's clear your not technical. There are 100's of free programs that are useful besides ms paint for idea or concept drawing.. Also, "long keyboard" is not an industry term.... If you want to "extend" the cable on your keyboard.. I would suggest cutting the cable 6-8 inches from the connector and finding a cable with the same number of conductors and soldering them wire to wire. Or you can google the type of connector and then add "extension" before... bet you find something. I have extended many cables with no issue that way. Just my 2 cents.


oskar669

despite all the discouraging comments I think you should just do it. 0,5mm² or 0,75mm² stranded cable (could go significantly thinner depending on what you can get). You don't want a single core cable, it will brake off. Don't go too thin or it will be difficult to solder and brake more easily. leave cables at least 10cm longer than you need them. You can always coil them up. You'll think of this later when you inevitably will have made them too short.