A wearable Pipboy 3000

[Zachariah Perry] builds a lot of replica props, and judging from the first few offerings on his blog he’s quite good at it. We enjoyed looking in on the Captain America shield and Zelda treasure chest (complete with music, lights, and floating heart container). But his most recent offering is the wearable and (kind of) working Pipboy 3000 from the Fallout series.

From his description in the video after the break it sounds like the case itself came as a promotional item that was part of a special edition of the game. He’s done a lot to make it functional though. The first thing to notice is the screen. It’s domed like the surface of a CRT, but there’s obviously not enough room for that kind of thing. The dome is made from the lens taken out of a slide viewer. It sits atop the screen of a digital picture frame. [Zachariah] loaded still images from the game into the frame’s memory, routing its buttons to those on the Pipboy. He also added a 12 position rotary switch which toggles between the lights at the bottom of the screen.

A little over a year ago we saw a more or less fully functional Pipboy. But that included so many added parts it was no longer wearable.

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Remote shutter module uses LCD screen for setup

Here’s a full-featured remote shutter project which [Pixel-K] just finished. It seems that he’s interested in taking time-lapse images of the cosmos. Since astrophotography happens outside at night, this presented some special design considerations. He wanted something that he could configure in the dark without zapping his night-vision too much. He also wanted it to be easily configured with a pair of gloves on.

The project enclosure is a 4x AA battery box. He removed the partitions between each cell, leaving plenty of room for the guts. Inside you’ll find a lithium battery and a micro-USB recharger board. It powers the Arduino mini pro which drives the 1.8″ LCD screen and actuates the optoisolator which is responsible for triggering the camera. On the right you can see the clear knob of the clickable rotary encoder. All of the user settings are chosen and selected using just this one knob.

He’s already tried it out on a 6-hour shoot and had no battery life problems or other issues.

Building a magnetic rotary encoder

[Long Haired Hacker] has undertaken a high-resolution 3D printer build. He got his hands on some motors to drive the build platform but it doesn’t have a built-in encoder. He knows that optical encoder wheels can have problems due to dirt and grim as well as ambient light so he set out to find a better way of providing feedback to the controller. He ended up building his own magnetic rotary encoder which is shown above.

At the heart of the system is an AS5043 magnetic rotary sensor. The chip, which runs from $6.50-$11, can detect and report the rotation of a magnetic field with great precision. The rotation data can be read out in degrees using SPI, but it sounds like there’s also grey code output on a few pins if that suits your needs a bit better. The magnet which the chip measures is mounted in a sleeve milled to seat inside of a bearing ring.

The 3D printing method [Long Haired Hacker] has chosen uses a projector and light-cured resin to achieve the kind of results seen in this other hi-res printer.

Easy rotary encoding for your projects

Want to monitor how much a wheel has turned in your project? Then you need a rotary encoder! Here’s a way to add rotary encoding without changing the mounting method of your wheels (translated). [Jorge] added it as a way to improve the functionality of this line-following robot. It uses a paper encoder wheel which is monitored by an optical sensor.

The paper wheel consists of alternating white and black pie pieces. You can make this with a felt-tipped marker, or use a tool like the one we featured a couple of years ago to print out a disc rendered to your own specifications. This is glued to the inside of the wheel and monitored by a CNY70 reflective sensor (the same one used in that electric keyboard retrofit).

The homemade board which holds the sensor can be seen mounted on top of each wheel’s motor. It requires three wires, voltage, ground, and data. The data line is connected to the output of the phototransistor in the CNY70 package so it can be used with a microcontroller interrupt for easy integration with the firmware driving the robot.

[Jorge] goes into some detail about how the added data helps to improve the speed performance seen in the clip after the break.

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Control LED lighting with an old stereo receiver

stereo_controlled_home_lighting

[Marklar] needed an IR receiver for a project he was working on, and his local electronics store was fresh out. He dug through his junk pile and found an old stereo receiver, so he decided to pull the IR module from it before tossing it out. Once he had it taken apart, he figured that he could utilize the wide array of electronic components he found inside, and set off to start a new project.

The control panel housed the components which interested him most of all. Using an Arduino, he was able to easily interface with the rotary encoders as well as the buttons, giving him a cheap and easy way to control his home lighting system. With a bit of programming, he was able to map lighting presets to various buttons, as well as use the rotary encoder to control the LEDs’ brightness and color. As an added bonus, he kept the IR receiver intact and can control his setup wirelessly as well.

Check out the video we have embedded below to see his scavenged control system at work.

[via HackedGadgets]

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XBMC controller is an all-in-one usb solution for HTPCs

On the original Xbox, XBMC was a software-only solution (assuming you had a chipped or soft-modded console). That’s because the Xbox was already meant to connect to a television and work with an IR remote control. Now that the XBMC software has transitioned to focus on a wider range of hardware, it may be more complicated to get the same functionality on an HTPC. Realizing this, [Dilshan] developed a USB connected XBMC controller that features an IR receiver, character LCD, and a rotary encoder with two buttons.

As long as your HTPC has a way to connect to the audio and video inputs on your TV, this should take care of the rest of the presentation. LCD screens were popular with XBMC from very early on because modchips included an interface. Because of this, XBMC is already setup to provide navigation and media information this way. So you can use XBMC for audio playback without needed to have your TV turned on. Add to that the ability to control your box with either  a remote control or the navigation tools on the front bezel and you’ve got a winning solution.

You can download an archive that includes all the info about this device over at the project repository. For your convenience we’ve embedded the schematic and PDF description of the project, which we found in that package, after the break.

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ChronoTune: listen to radio by year, not by frequency

The ChronoTune is a radio that plays sounds from different eras. This project was developed as an entry for the Redbull Creation Challenge by some members of i3Detroit, a hackerspace in the motor city. It allows a user to turn the dial to tune in a new moment in history, but they can also listen in on the present day. They’ll be greeted with the sounds of a tuning radio, followed by music or audio clips common to the period displayed on the dial.

As you know from the last contest entry, each project must use an Arduino to qualify. It reads a rotary encoder attached to one of the knobs on the front of the case. This doesn’t directly move the tuning needle. Instead, it’s attached to the guts of an inkjet printer to move it back and forth. This lets the radio tune itself if need be.

The audio is played from several sources. There is an MP3 module that allows for longer clips, but there are also some ISD voice recorder chip modules that play back shorter clips. If the dial is tuned to present day, an FM radio module tunes in a station over the air.

Having trouble reading that dial? Don’t worry, there’s a simulated Nixie tube display sticking out the top of the case to provide a digital readout of the currently selected time period. Check out the video after the break to see the team walk us through each part of the ChronoTune.

[Read more...]

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