Vista Normal

Hay nuevos artículos disponibles. Pincha para refrescar la página.
AnteayerSalida Principal

Ham Radio Paddles Cost Virtually Nothing

4 Mayo 2024 at 23:00

If you don’t know Morse code, you probably think of a radio operator using a “key” to send Morse code. These were — and still are — used. They are little more than a switch built to be comfortable in your hand and spring loaded so the switch makes when you push down and breaks when you let up. Many modern operators prefer using paddles along with an electronic keyer, but paddles can be expensive. [N1JI] didn’t pay much for his, though. He took paperclips, a block of wood, and some other scrap bits and made his own paddles. You can see the results in the video below.

When you use a key, you are responsible for making the correct length of dits and dahs. Fast operators eventually moved to a “bug,” which is a type of paddle that lets you push one way or another to make a dash (still with your own sense of timing). However, if you push the other way, a mechanical oscillator sends a series of uniform dots for as long as you hold the paddle down.

Modern paddles tend to work with electronic “iambic” keyers. Like a bug, you push one way to make dots and the other way to make dashes. However, the dashes are also perfectly timed, and you can squeeze the paddle to make alternating dots and dashes. It takes a little practice, but it results in a more uniform code, and most people can send it faster with a “sideswiper” than with a straight key.

Don’t like radio? Use Morse Code as your keyboard. Want to learn code? It isn’t as hard as you think.

Keebin’ with Kristina: the One With the Transmitting Typewriter

25 Abril 2024 at 14:00
Illustrated Kristina with an IBM Model M keyboard floating between her hands.

Image by [SrBlonde] via Hackaday.IO
Okay, so we’re opening with more than just a keyboard, and that’s fine. In fact, it’s more than fine, it’s probably the cutest lil’ ZX Spectrum you’ll see today.

[SrBlonde]’s wonderful micro Spectrum project has only the essential inputs, which makes for an interesting-looking keyboard for sure. Inside you’ll find an Orange Pi Zero 2 board loaded with Batocera so [SrBlonde] can play all their favorite childhood games on the 5″ IPS display.

Something else that’s interesting is that the switches are a mix of blues and blacks — clickies and linears. I can’t figure out how they’re distributed based on the numbers in the components list, but I could see using clickies on the alphas and linears everywhere else (or vice versa). At any rate, it’s a great project, and you can grab the STL files from Thingiverse if you’re so inclined.

Zoom Keyboard Keeps It Simple

Image by [Olga Pavlova] via Hackaday.IO
If you’ve ever used Zoom with any regularity, you may have longed for a keyboard much like this macro pad from [Olga Pavlova].

[Olga] is using this bad boy in an educational setting, so the hot keys are set up as follows: raise/lower hand, mute/un-mute audio, and show/hide the in-meeting chat panel. Simple plus useful equals elegant in my book. This keyboard is built on the ATtiny85, and you can find more details on GitHub including the code.

I’m quite drawn to the interesting design of this one, and I’m not quite sure what it reminds me of. Maybe an upside-down Steam logo. What do you think it looks like?

The Centerfold: Peel Slowly and See

Image by [ItsameDoody] via reddit
Yep, this time we’re going with nature’s energy bar, the KBDFans banana desk mat. Although there’s no edible banana for scale, there is a nice Mammoth75 keyboard, and a really lovely wrist rest that totally blends in with the desk. Believe it or not, those creamy keycaps aren’t from a group buy or anything crazy, they’re just some milky white PBTs from the Bezos Barn.

Do you rock a sweet set of peripherals on a screamin’ desk pad? Send me a picture along with your handle and all the gory details, and you could be featured here!

Historical Clackers: the Yetman Transmitting Typewriter

Image via Oz Typewriter

The remarkably heavy Yetman Transmitting Typewriter of 1903 was a bit like a laptop of its time in that you could hook into the telegraph wires and send a message from anywhere. (Well, anywhere with telegraph wires.) And, at the same time, if you wanted, you could produce a hard copy of that message. Or, you could just use the thing as a normal typewriter.

And as far as normal typewriters go, the Yetman isn’t too outstanding aside from its transmitting capabilities. In order to transmit, you simply pressed the lever on the left side of the keyboard. To engage the typebars, you pressed a lever on the right.

You may have noticed the shelf above the keyboard with the strange knob. That is a Morse keyer for sending messages the traditional way. Many sources claimed that the Yetman could also receive transmissions, but that’s not the case.

There are many mysteries surrounding the Yetman, its inventor, and the company’s president, which you can read all about on the Oz Typewriter blog.

ICYMI: KanaChord, the Japanese Macro Pad

The red light means an invalid combination was pressed. Image by [Mac Cody] via Hackaday.IO
Want to input a little Japanese here and there on your computer? Normally you’d need to switch languages, but why not switch peripherals instead? That’s the idea behind [Mac Cody]’s KanaChord, which generates Unicode macros that render Japanese Kana characters by way of chords — multiple keys at once, like on a piano.

It’s simple, really, as long as you know your table of Kana — that’s how the Hirigana and Katakana elements of the Japanese language are collectively known. There’s also the Kanji, or Chinese characters that round it all out. This version of the KanaChord lacks the Kanji, but the KanaChord Plus Keyboard will have 6,000+ characters.

KanaChord uses color to differentiate between character types, to indicate Kana mode, and even provide error feedback whenever an invalid chord is pressed. Inside you’ll find a Raspberry Pi Pico and an Adafruit NeoKey 5×6 Ortho Snap-Apart keyboard PCB, which simplifies things considerably. Underneath those cool 3D-printed keycaps are thirty Cherry MX switches of unknown color, but which I choose to believe are blue.


Got a hot tip that has like, anything to do with keyboards? Help me out by sending in a link or two. Don’t want all the Hackaday scribes to see it? Feel free to email me directly.

❌
❌