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This robot can find and extinguish fires automatically. It is the culmination of an Embedded Design class project from last school year. [Dan] and his classmates developed a turret that holds both a spray nozzle and heat sensor which would be a fantastic building block for a real-life tower defense game. The jewel of the [...]

Tags:  heat-seeking robot firebot dan tower-defense-game spray-nozzle robots hacks  

LED Marquee Pumpkin Here’s an LED marquee as the mouth of a Jack-o’-lantern which [Mike Skoczen] made. This comes hot on the heels of that playable Tetris Pumpkin. [Thanks Jacob] Arduino-powered robot costume This is a sideways view of the Arduino-powered costume [Dan] and his wife made for their son. It has lights, buttons, a [...]

Tags:  led arduino-powered marquee tetris-pumpkin mike-skoczen jacob dan arduino hackaday hot-on-the-heels hackaday  

[Dan] took a $13 electronic dartboard and made it work with an Android device. The idea behind it is that these cheap electronic models feature a very sparse display. At this price that doesn’t surprise us. He wanted to add the features you’d find on a coin-op model like the ones found in bars. So [...]

Tags:  device android dartboard dan electronic-dartboard electronic-models hacks  

This Android device can recognize faces and move to keep them in frame. It’s a proof of concept that uses commonly available parts and software packages. The original motivation for the project was [Dan O's] inclination to give the OpenCV software a try. OpenCV is an Open Source Computer Vision package that takes on the [...]

Tags:  device android Software dan proof-of-concept source-computer computer-vision hacks  

[Dan] has his own Stratasys Dimension SST 768 3D printer. It’s a professional grade machine which does an amazing job. But when it comes time to replace the cartridge he has to pay the piper to the tune of $260. He can buy ABS filament for about $50 per kilogram, so he set out to refill [...]

Tags:  printer stratasys refill dan 3d-printer filament sst printer hacks  

It may seem trivial at first, but the effect [Dan] gets when using binoculars as a telephoto lens is surprising. The images are well in focus with great colors. This technique not only brings your subject mater closer but also provides a depth-of-focus feature not normally available on simple cameras or camera phones. The proof [...]

Tags:  lens binoculars effect dan subject-mater depth-of-focus focus-feature digital cameras hacks  

[Dan] wrote in to share a link to his MythTv to Apple TV setup. He found a way to make the recordings he made on his Linux box available on the 2nd Generation Apple TV. Our first thought is that he would use XBMC on a jailbroken device  but that is not the case. The [...]

Tags:  mythtv library apple dan apple-tv generation-apple tv-setup home entertainment hacks  

Sure, as a very powerful and influential LEGO dictator you’re more than able to make the trains run on time, but how do you make your LEGO citizens realize the benefits of living under your regime? With an OLED LEGO train schedule, of course! [Dan] over at Adafruit put together a great guide to interfacing a [...]

Tags:  lego dictator oled dan lego-train train-schedule toy hacks  

An old book – the smell, the texture of the slowly rotting paper, and the smudges and margin notes accrued over decades – is one of the finer points in life taken for granted much too often. We’re bombarded with high precision vector typefaces all day, but [Dan]‘s Avería font is beautiful in its irregularity. [Dan] [...]

Tags:  average book font dan margin-notes smudges irregularity Software development  

[Dan] had been wanting a pair of Bluetooth headphones for quite a while. Most of the reviews for wireless headphones in the $50-$80 range complained of tinny sound and dropped bass. Nevertheless, he stumbled upon a $20 pair of headphones with similar reviews and realized that he could switch out the driver and make a decent [...]

Tags:  bluetooth pair improving dan bluetooth-headphones wireless-headphones warranties digital audio hacks  

[Dan’s] office is awfully hot, but he needed some real temperature numbers that he could show the building management office to justify opening a maintenance ticket. He had seen some simple temperature probe examples online, and decided to build his own using a small AVR chip. Based off a similar temperature monitoring example called EasyLogger, [...]

Tags:  probe temperature office dan avr-chip temperature-probe temperature-monitoring attiny hacks  

[Dan] wanted to learn a bit about solid state ignition in engines; to get started he needed a test subject, so he decided he would upgrade his old 12 horsepower lawnmower. Originally the lawnmower engine used a magneto coil ignition system, magnetos are simple and very common in lawnmowers. The magneto is designed to produce [...]

Tags:  engine state ignition dan coil-ignition-system lawnmower-engine magnetos engine hacks  

[Dan] wrote in to share a project he recently finished up, an autonomous Airsoft tank. The toy tank makes use of a wide array of technologies to get the job done, and will stop at nothing to hunt you down (provided you are wearing an IR beacon). An Arduino board is used to control the [...]

Tags:  tank autonomous project dan toy-tank welts array arduino hacks  

After reading over the proceedings of the 2005 SIGGRAPH, [Dan] realized he could reproduce one of the projects with $50 worth of equipment and some extreme cleverness. [Dan]‘s dual scanning laser camera operates by scanning a laser across an object. The light reflected from the object illuminates a flat surface, and this light is measured [...]

Tags:  light camera laser dan laser-camera flat-surface cleverness hacks  

Hackaday forum member [Dan Fruzzetti] wrote in to share a simple, yet useful hack he built just the other day. He and his wife both have Evo 4G smartphones and they were pretty disappointed in the lack of portable charging solutions available. Instead of buying something and modifying it to his needs, [Dan] decided to [...]

Tags:  quick dirty usb dan-fruzzetti dan usb-phone-charger smartphones forum-member cellphones hacks  

Omnidirectional personal transport [Dan] sent us a link to this Honda U3-X personal transport device. It’s kind of like a Segway that can move in any direction but our head already hurts from the thought of going over backward on one of these. How light bulb filaments were developed Now that incandescent light bulbs are about [...]

Tags:  march hackaday transport dan incandescent-light-bulbs transport-device personal-transport hackaday links  

In what is surely becoming an ever-growing Rube Goldberg machine, [Dan] updated his gum ball dispenser to include a robot arm. We looked in on this human lab-rat experiment that rewards successful maze navigation with bubble-gum just about a year ago. As you can seen in the video after the break he’s added several new [...]

Tags:  maze gum ball dan rube-goldberg-machine rube-goldberg maze-navigation home entertainment hacks  

[Dan Roe] has been working on Sculptural Robotics for quite some time, and most recently presented his newest creation: Solar Flowers 2010. Typically, Sculptural Robotics (coined by [Dan] himself) are stand alone, static art presentations made from electronic components and wire. [Dan] of course has taken it quite a bit further; giving all his sculptures [...]

Tags:  sculptural art robotics dan-roe dan art-presentations static-art quite-some-time classic hacks  

[Dan McGrath] tipped us off about a solution for a problem that most people don’t have. He built a web-based entry system for his garden gate. This isn’t quite as original as that chain and sprocket dorm room system, but it does use a keypad for entry. [Dan's] already got a web server and home [...]

Tags:  gate garden entry dan-mcgrath dan dorm-room mcgrath web-server home hacks  

[Dan Fruzzetti's] daughter was delighted to get a motorized vehicle from her Grandparents, but [Dan] was unimpressed with the stock features. The lead-acid battery supplied remarkable life between charges, but the vehicle only had one feature: a go button that routed juice to the bipolar motor. After the break we’ll look at his improvements to [...]

Tags:  daughter vehicle toy dan-fruzzetti dan lead-acid-battery remarkable-life bipolar hacks