My first custom keyboard

[matt3o]

it's a "blip" more than a "click". interesting. thanks for the info.

[sordna]

Yup, but when it comes from a little buzzer instead of computer speakers, it sounds much more tinny, closer to a click. It's actually the buzzer generating the sine wave in the keyboard case; all you provide to the buzzer from the controller is DC voltage whenever you want it to sound.

[Trent]

Step one complete, now finish that keyboard!

[gmjhowe]

Excellent, I have been doing exactly the same thing recently.

The board on the left is a Leonardo I got at EMF Camp in the UK.
Once I have developed a PCB, I intend to use the Micro as you are.

The main problem I can see, is there is code for using Matrixes on Arduino, and code using the USB functions of the leonardo, but no examples of merging the two together yet.

I will keep an eye on your updates, and will post any updates/code I come up with as I get to those points.

onekeykeyboard.jpg (257.47 KiB) Viewed 7001 times

nb. the Uno to the right is not being used, its just attached to my breadboard.

[Okeg]

This gave me a great(stupid?) idea.
Why not make a 2-key keyboard, and make a binary > text software.
There is 2 keys on the board, 1 and 0. you type in binary, and the output gets translated into normal readable text.
Man, i'm bored.

[IvanIvanovich]

Hehe. Would be a great gag gift for programmers. Or up it to three...

[matt3o]

I'm still waiting for my bluetooth module to arrive. Darn! it is taking forever.

In the meantime I'm going to have the plate cut. I'll do with a pre-holed PBC and lot's of wires I believe, at least for the first prototype.

[gmjhowe]

I'm still waiting for my bluetooth module to arrive. Darn! it is taking forever.

In the meantime I'm going to have the plate cut. I'll do with a pre-holed PBC and lot's of wires I believe, at least for the first prototype.

I plan to work on a laser cut see through acrylic plate for mine. Won't be as strong, but it should look pretty slick.
Plus I can make/prototype it myself easily.

[matt3o]

FINALLY!



The BT module! Now to the soldering!

Where do you guys buy electronics components in EU? Mouser and the like are from US right?

[CeeSA]

I often buy things from ebay.de, conrad.de or amazon.de.

Which BT module is that? Where did you get it?

[gmjhowe]

FINALLY!

Spoiler:

The BT module! Now to the soldering!

Where do you guys buy electronics components in EU? Mouser and the like are from US right?

Phenoptix is a great reseller in the UK of many of the hobby electonics /micro controllers
http://www.phenoptix.com/

Otherwise http://uk.rs-online.com/web/ has a good selection.

Aware they are both UK based, but obviously thats closer than america.

[matt3o]

Which BT module is that? Where did you get it?

http://www.inmojo.com/store/jeff-rowber ... out-board/

it's not the cheapest, but very well documented and it has a pretty good quality BT module

edit: thanks for the shops suggestions!

[pasph]

http://it.farnell.com/
https://www.distrelec.it/home

[matt3o]

http://it.farnell.com/
https://www.distrelec.it/home

does farnell ship from Italy (or at least EU)?

[pasph]

"I prodotti provenienti dagli USA verranno spediti in 3 giorni lavorativi e chiaramente identificati nei risultati della ricerca"
http://it.farnell.com/jsp/support/suppo ... /stock.jsp

[agor]

http://hbe-shop.de/
As Farnell is business only (I think, could not order) I used this Farnell retailer. Ended up being cheaper, too