hackaday.com Archives - 26 April 2013, Friday

  • Old LED marquee turned embedded video player

    hackaday.com 26 Apr '13, 9pm

    [Sprite_TM] is was sent an old LED Marquee by an anonymous fan of his hacking projects. The display isn’t full color, but it’s large — 224 by 48 pixels — and he figured he could render some okay images with the bi-color diodes. In the end, he replaced the controller and turned it into...

  • Mood lamp/notifier uses neat modular PCB design

    hackaday.com 26 Apr '13, 8pm

    Not only does this mood lamp which [J. Sutton] built look great, but we love the modular design he adopted when building the circuit boards. If you’re building something that is going to sit on your desk for some time it just has to look good. We think that he achieved that, using a s...

  • Cube 3D printer hack lets you use bulk filament

    Cube 3D printer hack lets you use bulk filament

    hackaday.com 26 Apr '13, 7pm

    [Chris Nafis] crunched the numbers and found out he could get filament for his 3D printer in bulk for about one-fifth the cost of the cartridges the company sells. This led him to print a feeder for his Cube 3D printer . We’re skeptical about the Cube 3D printer’s cartridges. They con...

  • Foot-powered lathe is a tour de force of joinery techniques

    Foot-powered lathe is a tour de force of joinery techniques

    hackaday.com 26 Apr '13, 1pm

    It works something like a foot powered sewing machine. There’s a lever for your foot which converts the downward force from your foot into a rotating force which drives the work piece. The mechanics of the lathe are pretty common, but we think the build techniques he uses are anything...

  • SDR as a Police and Fire radio scanner

    SDR as a Police and Fire radio scanner

    hackaday.com 25 Apr '13, 9pm

    If you’ve lost interest in that DVB dongle you bought to give software defined radio a try you should bust it back out. [Harrison Sand] just finished a guide on how to use SDR to listen in on Police and Fire radio bands . The project, which results in the crystal clear audio reception...

  • The 10 best hacking videos

    hackaday.com 25 Apr '13, 8pm

    Say goodbye to the rest of your day. Here are the top 10 best videos about real hacking. We’ve already covered the absolute worst that hollywood has to offer, twice . Then, we did the best that hollywood could pull off . Now we’re enjoying the real thing. Feast your eyes on hacking as...

  • Keurig hack runs a water supply line to your coffee maker

    Keurig hack runs a water supply line to your coffee maker

    hackaday.com 25 Apr '13, 7pm

    His coffee maker sits right next to the fridge, which has its own water supply. So one day he thought, why not run a line to the coffee maker as well? As far as plumbing projects go it’s very simple. He pulled out the refrigerator and added a T-fitting to split the water supply line. ...

  • A quick tour of my workbench

    hackaday.com 25 Apr '13, 5pm

    Whenever I release a hackaday video, I invariably get comments and emails about my workbench. Some people are telling me to clean up, others are asking me about things they see in the background. This isn’t just a set that I film on. Obviously my videos aren’t high enough quality for ...

  • Bending and printing a curved camera dolly track

    Bending and printing a curved camera dolly track

    hackaday.com 25 Apr '13, 1pm

    How lucky is [Transistor Man] that he found the materials for the tracks of this curved camera dolly just lying around the shop? The three rails making up the system are quarter-inch diameter and he was able to bend them by hand with the help of a 55 gallon drum. But to hold them in p...

  • Hacking a Sigma lens to work with a Canon camera

    hackaday.com 24 Apr '13, 9pm

    [Martin Melchior] wanted to use an older Sigma lens with his Canon camera . The problem in trying to do so is that the camera uses a different communications protocol than the lens is expecting. But if you don’t mind cracking it open and doing a little microcontroller work you’ll be u...

  • This GPS logger is so small…

    This GPS logger is so small…

    hackaday.com 24 Apr '13, 7pm

    Main system control is provided by a Teens 2.0 board. If you look really closely you’ll see the SD card slot is actually a breakout board which mounts on top of the Teensy’s pinheaders. Also on the board is a PA6B GPS module with a few passive components to support it. The back side o...

  • Acrobatic tricopter inspired by the Oblivion movie trailer

    Acrobatic tricopter inspired by the Oblivion movie trailer

    hackaday.com 24 Apr '13, 1pm

    There have been a ton of commercials for the new [Tom Cruise] movie called Oblivion . One of the main points in every clip we remember seeing is the Top Gun meets Star Trek vehicle he does some tricks in. [James Cotton] loved that footage and ended up building his own RC version of th...

  • Rattle generator is a new type of dynamo for a bicycle

    Rattle generator is a new type of dynamo for a bicycle

    hackaday.com 23 Apr '13, 9pm

    To get the most power possible he searched around for a massive relay and found one which was originally meant for telephone exchanges. He cut the case open and strapped a big bar magnet to the side of the coil. Next he fabricated an arm which will press against the relay’s lever. To ...

  • OTM-02 is a 3D printed wristwatch

    OTM-02 is a 3D printed wristwatch

    hackaday.com 23 Apr '13, 7pm

    OTM stands for Open source Time Machine. It’s the work of [Hairy Kiwi] and he managed to bring the guts of the watch in at a thickness between 6.5 and 7mm. That includes the LCD, PCB, piezo diaphragm, and the battery. The PCB itself is a four-layer board built on 1mm thick substrate. ...

  • What are the best hacking documentaries?

    hackaday.com 23 Apr '13, 1pm

    Continuing with our series of best and worst portrayals of hacking, we’re gathering our resources to bring you the top 10 Hacking Documentaries. Again, we feel the strongest resource is the hacking community, so lets hear what you think should qualify. While it would be fantastic to o...

  • Console radio given new life with a WiFi router retrofit - [Craig] did a great job of restoring the case of his an...

    Console radio given new life with a WiFi router retrofit

    hackaday.com 23 Apr '13, 1pm

    To each his own. My sensibilities are different. Suppose you had a beautiful old walnut grandfather clock in the family, handed down from generation to generation. Then you get it, tear out the face and guts, and install a digital clock from Radio Shack. No more noise, no more winding...

  • 20 pounds and a gut feeling yields a configurable Rubidium atomic clock source

    20 pounds and a gut feeling yields a configurable Rubidium atomic clock source

    hackaday.com 22 Apr '13, 9pm

    First off, the fact that it’s made for the aerospace industry means that the craftsmanship on it is simply fantastic. The enclosure is machined aluminum and all of the components are glued or otherwise attached to the boards to help them stand up to the high-vibrations often experienc...

  • Connect a Retina display to a regular computer

    Connect a Retina display to a regular computer

    hackaday.com 22 Apr '13, 7pm

    You don’t have to search very long before you find someone raving about the Retina display used in Apple iPads. We’re not going to disagree. These 9.7″ panels pack in a whopping 2048×1536 resolution and the color is fantastic. But we were surprised to hear you can get one of these for...

    Related:
    1. display (Object) apidock.com 24 Apr '13, 2pm
  • Automatic tubular bells given a MIDI interface too

    Automatic tubular bells given a MIDI interface too

    hackaday.com 22 Apr '13, 1pm

    We’ve got to say it… these tubular bells sound awful! They don’t really have a tight pitch center so they sound really out of tune to us. But we think that’s the failing of the instrument itself and not the work which [Tolaemon] did to automate the instrument . There are three main pa...

  • Hackaday Links: Sunday, April 21st, 2013

    hackaday.com 21 Apr '13, 9pm

    First I got rid of that chunk of plastic on the end of my drill. I am referring to that drill-shank grinder that works on the same principle as “hand-tightened lugnuts”. After changing the “chuck” for a keyed Jacobs chuck, I made a chunk of wood with the key imbedded in it’s palm size...

  • Drop-in pcb makes Nintendo Four Score a USB joystick

    hackaday.com 21 Apr '13, 7pm

    The Nintendo Four Score was a controller attachment for the original Nintendo Entertainment System which allowed you to use four controllers at one time. [Simon Inns] wanted to use some original NES controllers on his computer so he developed a drop-in replacement board that converts ...

  • 3D printing some sweet music

    3D printing some sweet music

    hackaday.com 21 Apr '13, 1pm

    If you don’t mind ending up with oddly shaped 3D printed parts you can get your printer to sing to you . The exhibit shown above is doing just that. The Lulzbot is being driven specifically to produce a certain frequency of sound with its stepper motors. The results of a few different...

  • Mood lamp/notifier uses neat modular PCB design

    hackaday.com 20 Apr '13, 9pm

    Not only does this mood lamp which [J. Sutton] built look great, but we love the modular design he adopted when building the circuit boards. If you’re building something that is going to sit on your desk for some time it just has to look good. We think that he achieved that, using a s...

  • GUI window manager on an AVR chip

    GUI window manager on an AVR chip

    hackaday.com 20 Apr '13, 7pm

    This project is reminiscent of the old days when window managers were an amazing new idea. The difference is that this window-based GUI is running on an ATmega1284 microcontroller . But the behavior and speed of the interface is pretty much exactly what you’d expect if working on an e...

  • This piggy bank is our stock broker

    This piggy bank is our stock broker

    hackaday.com 20 Apr '13, 1pm

    [Johna and Justin] are working to take the emotion out of playing the market. They built this piggy bank which automatically purchases stock when your coinage totals the cost of a single share. That’s right, just turn the selector to one of your three chosen stocks (Google, Facebook, ...

  • Asynchronous fireflies use few parts

    Asynchronous fireflies use few parts

    hackaday.com 19 Apr '13, 9pm

    We like his design which uses a coin cell battery holder as the chassis for the project. The ATtiny13 driving the hardware is held in place by the two power wires. This lets him flash new firmware by rotating the chip and plugging in a little adapter he build. The LED connection might...

  • Replace your project power supplies with recycled Li-Ion cells and a switching regulator

    Replace your project power supplies with recycled Li-Ion cells and a switching regulator

    hackaday.com 19 Apr '13, 7pm

    The recycled cells he’s talking about are pulled out of larger battery packs. As we’ve seen in the past , dead battery packs for rechargeable tools, laptops, etc., are often plagued by a few bad apples. A small number of dead cells can bork the entire battery even though many perfectl...

  • Measuring the lifespan of LEGO

    Measuring the lifespan of LEGO

    hackaday.com 19 Apr '13, 1pm

    The hacked together apparatus is pretty ingenious. It uses two servo motors for testing, each driven by the Arduino which is logging the count on an SD card. One of the two white LEGO parts has been screwed onto an arm of the upper servo. That servo presses down onto the mating piece ...

  • Pulse Oximeter from LM324, LED, and Photodiode: This pulse oximeter is so simple and cheap to build it’s almo...

    Pulse Oximeter from LM324, LED, and Photodiode

    hackaday.com 18 Apr '13, 9pm

    a concept we’ve seen a few times before . The light from an LED shines through your finger and is measured on the other side by a phototransistor. It’s that light grey plastic thing you see on a patient’s finger when they’re in the hospital. [Scott] went with a common wooden clothes p...

  • Living night light with glowing algae

    Living night light with glowing algae

    hackaday.com 18 Apr '13, 8pm

    M father, an ex Navy man, has told me stories of glowing water since I was little. Being a person who was obsessed with all things that light up this always stuck with me. I saw a headline one day that someone was making an algae-light. Sadly when I clicked on it, the algae was just t...