DualShock Flight Simulator Yoke

November 4, 2020 by Danie Conradie 6 Comments

Aircraft control interfaces can be divided into stick or yoke, with the stick being more popular for flight simulators. [Akaki Kuumeri] has been designing some ingenious 3D printed adaptors for game console controllers, and his latest build is a yoke adaptor for the PlayStation DualShock Controller.

Like his previous joystick/throttle combination, this yoke makes use of a series of ball and socket links to convert the yoke’s push/pull and rotation motion into the appropriate inputs on the controller’s thumbs sticks. All the components are 3D printed except for rubber bands to provide spring tension. On the sliding contact surfaces between the different components, [Akaki] specifically designed the parts to slide along the grain (layer lines) to allow for smooth motion without resorting to bearings.

If you want an absolute minimalist yoke, tape some potentiometers to a desk drawer. Or you can go to the other end of the scale and build a complete cockpit. With the arrival of Microsoft Flight Simulator 2020, we’ll be seeing a lot of controller builds.

Complete Flight Sim Controller Set With 3D Printing And Hall-Effect Sensors.

October 26, 2020 by Danie Conradie 17 Comments

[Tom Stanton] has been playing Microsoft Flight Simulator a lot recently, and decided his old desktop joystick needed an upgrade. Instead of just replacing it with a newer commercial model, he built a complete controller system with a long joystick that pivots at floor level, integrated rudder pedals and a throttle box. You can see it in action after the break.

The throw of the joystick is limited by [Tom]’s legs and chair, with only 12° of travel in either axis, which is too small to allow for high resolution with a potentiometer. Instead, he used hall effect sensors and a square magnet for each axis, which gives good resolution over a small throw angle. The pivot that couples the two rudder pedals also makes use of a hall effect sensor, but needs more travel. To increase the size of the magnetic field, [Tom] mounted two magnets on either side of the sensor with their poles aligned. To center the rudder pedals and joystick, a couple of long tension springs were added.

The joystick (left) and rudder pedals (right) magnet configurations with a hall effect sensor.

A normal potentiometer was used in the throttle lever, and [Tom] also added a number of additional toggle switches and buttons for custom functions. The frame of the system is built with T-slot extrusions, so components can quickly moved to fit a specific user, and adjust the preload on the centering springs. All the electronic components are wired to an Arduino Micro, and thanks to a joystick library, the code is very simple.

At a total build cost of £212/$275 it’s certainly not what anyone would call cheap, but it’s less than what you’d pay for a commercial offering. All the design files and build details are linked in the second video if you want to build your own.

The flight sim controller builds are coming in thick and fast with the release of the latest MS Flight Simulator. With 3D printing you can augment an Xbox controller with a joystick and throttle, or just use tape and a few electronic components turn a desk drawer into a flight yoke.

Turning A Desk Drawer Into A Flight Yoke

October 17, 2020 by Danie Conradie 9 Comments

[Christofer Hiitti] found himself with the latest Microsoft Flight Simulator on his PC, but the joystick he ordered was still a few weeks out. So he grabbed an Arduino, potentiometers and a button and hacked together what a joke-yoke.

The genius part of this hack is the way [Christopher] used his desk drawer for pitch control. One side of a plastic hinge is attached to a potentiometer inside a drawer, while the other side is taped to the top of the desk. The second pot is taped to the front of the drawer for pitch control and the third pot is the throttle. It works remarkably well, as shown in the demo video below.

The linearity of the drawer mechanism probably isn’t great, but it was good enough for a temporary solution. The Arduino Leonardo he used is based on the ATmega32u4 which has a built-in USB, and with libraries like ArduinoJoystickLibrary the computer interface very simple. When [Christopher]’s real joystick finally arrived he augmented it with a button box built using the joke-yoke components.

There’s no doubt that Microsoft Flight Simulator 2020 will spawn a lot of great controller and cockpit builds over the next few years. We’ve already covered a new joystick build, and a 3D printed frame to turn an Xbox controller into a joystick.

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Inputs Of Interest: The OrbiTouch Keyless Keyboard And Mouse

October 12, 2020 by Kristina Panos 19 Comments

I can’t remember how exactly I came across the OrbiTouch keyboard, but it’s been on my list to clack about for a long time. Launched in 2003, the OrbiTouch is a keyboard and mouse in one. It’s designed for people who can’t keyboard regularly, or simply want a different kind of experience.

The OrbiTouch was conceived of by a PhD student who started to experience carpal tunnel while writing papers. He spent fifteen years developing the OrbiTouch and found that it could assist many people who have various upper body deficiencies. So, how does it work?

It’s Like Playing Air Hockey with Both Hands

To use this keyboard, you put both hands on the sliders and move them around. They are identical eight-way joysticks or D-pads, essentially. The grips sort of resemble a mouse and have what looks like a special resting place for your pinky.

One slider points to groups of letters, numbers, and special characters, and the other chooses a color from a special OrbiTouch rainbow. Pink includes things like parentheses and their cousins along with tilde, colon and semi-colon. Black is for the modifiers like Tab, Alt, Ctrl, Shift, and Backspace. These special characters and modifiers aren’t shown on the hieroglyphs slider, you just have to keep the guide handy until you memorize the placement of everything around the circle.

You’re gonna need a decent amount of desk space for this. Image via OrbiTouch

The alphabet is divided up into groups of five letters which are color-coded in rainbow order that starts with orange, because red is reserved for the F keys. So for instance, A is orange, B is yellow, C is green, D is blue, E is purple, then it starts back over with F at orange. If you wanted to type cab, for instance, you would start by moving the hieroglyph slider to the first alphabet group and the color slider to green.

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Spin The Video Track With A Mechanical Flair

October 12, 2020 by Matthew Carlson 16 Comments

One of the most difficult user interfaces to get right is video editing. It is complex and fiddly with large amounts of precision required even after four or five hours of straight editing. Seeking to bring some of that interface out into the real world, [Zack Freedman] built a mechanical video editing keyboard.

The keyboard in question features popular shortcuts and keys to breeze through different parts of editing. The biggest feature is, of course, the large scrubbing knob, allowing [Zack] to fly through long video with precision. We’ve seen our fair share of mechanical keyboards that aren’t traditional keyboards on Hackaday before, such as this number pad or this macro pad.

One of the unique constraints of this project was the fact that Zack had a deadline of two days. This self-imposed deadline was to help focus the work and drive it towards completion. This meant that it had to be designed in such a way that roadblocks or troublesome features could be designed around or cut out altogether. At its heart, this project is just 14 mechanical switches, 4 potentiometers, and a Teensy to drive it all. It is the design, prototyping, and thought that went into this project that makes it noteworthy. There are plenty of lessons here about how to manage a project’s timeline and advice about how to actually finish it.

Code, STL’s, diagrams, and instructions are all on his GitHub.

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Arduino Gets Old PC Booted And Back Into Action

October 11, 2020 by Tom Nardi 47 Comments

How many people still have a PS/2 keyboard kicking around in 2020? Admittedly asking such a question of the Hackaday audience is probably cheating (there’s a decent chance one of you will type a comment on one just to prove a point), but even the most pedantic reader has to admit that it’s a long dead standard. So we’re hardly surprised to hear that [Turbaned Engineer] didn’t have one handy when he tried to boot a motherboard so old that he couldn’t access the BIOS with a USB keyboard.

But rather than waiting for an adapter to show up in the mail, he decided to rig up an Arduino Nano to mimic a PS/2 keyboard just long enough for him to navigate the system configuration. Since that basically meant he only needed the arrow keys and Enter, he was able to rig up a handful of momentary buttons to serve as input. We wouldn’t recommend typing out your memoirs with such a spartan board, but it’s certainly good enough to juggle around the order of boot devices.

The fun didn’t stop there, though. [Turbaned Engineer] also had to clean some corrosion and fix a blown resistor on a bank of RAM to drag this old soldier over the finish line. He didn’t have a case handy, so he made a free-form one using the polycarbonate packaging that ICs ship in. The final machine isn’t exactly a sleeper, but it’s good enough to play Super Mario Bros. 3 on the TV.

At the end of the day, the minimal input device [Turbaned Engineer] put together isn’t so far removed from other homebrew keyboards we’ve seen recently. It seems that QMK even has some basic support for the PS/2 interface. Not that it would come up very often, but a “retro” mode might be an interesting addition to your next custom keyboard build.

Baseball Cap Mouse Provides A Look-And-Click Interface

October 5, 2020 by Lewin Day 3 Comments

Once upon a time, the computer mouse didn’t exist. Early computers used a variety of other input devices, from the typical keyboard to more esoteric options such as joysticks or light pens. While the mouse as we know it dominates all, it doesn’t mean other tools can’t find their place. One such device is this hat mouse, from [Jacek Fedorynski].

The mouse consists of an Adafruit Feather nRF52840 Sense, mounted upon a basic baseball cap. The development board packs in a 9 degree-of-freedom motion sensor package featuring the ST LSM6DS33 acceleromater/gyro and LIS3MDL magnetometer. Through a robust sensor fusion algorithm, this enables the board to measure the orientation and motion of the wearer’s head with a great degree of finesse. This allows the user to look at different parts of the screen to move the mouse cursor, with the system working in an absolute rather than relative fashion. Commands are sent to the attached PC with the Feather’s built-in Bluetooth, avoiding the need for dangly cables running down the user’s neck. Files are available on Github for those eager to spin up their own.

Combined with some built-in accessibility aids in Windows, the setup allows the user to move the mouse well, with foot switches used to activate the left and right mouse buttons. For those who find using a traditional mouse difficult, this could be a great tool for better productivity. Of course, if you wish to learn more, it pays to take a look back at the very earliest days of mouse technology. Video after the break.

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