Wireless Trackpad Looks Like Fingernail Polish

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Originally posted on Hackaday:

All hands are on deck over at MIT where a very handy new trackpad has been created that will be able to give users a free hand to do other tasks. The device is called the NailO and attaches to one’s thumbnail, which allows the user an easy and reportedly natural way to use a trackpad while your hands are full, dirty, or otherwise occupied.

The device reportedly works like any normal trackpad, but is about the size of a quarter and attaches to the thumbnail in such a way that it takes advantage of the natural motion of running an index finger over the thumbnail. It communicates via Bluetooth radio, and has four layers which all go hand-in-hand: an artistic covering (to replicate the look of a painted fingernail), the sensors, the circuitry, the battery, and presumably an adhesive of some sort.

Details are quite sparse, but the device…

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“Jack Nicholson” – Spray Paint on Canvas by Me…

Originally posted on Ray Ferrer - Emotion on Canvas:

Please read the entire post and share if you could!

“Jack Nicholson” – Spray Paint on Canvas by Me.
Sold / Commissioned 3ft x 2ft

Ferrer - Jack N

Everything in my Etsy Shop is 50% off to aid w/ our Brain Tumor battle.  Use coupon code ART50 at checkout to get 50% off listed price.  Etsy Shop –>  Ray’s Shop

**Signed / Limited Prints available here: –> “Jack Prints

Also, please have a look at the rest of my blog if you are unfamiliar with our struggle.  My biopsy of the tumor is scheduled, tentatively, for April 21st.  Enjoy the artwork :)

Artist Ray Ferrer – Brain Tumor

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Java Byte Code, Ahead Of Time Compilers, And A TI-99

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Originally posted on Hackaday:

Java famously runs on billions of devices, including workstations, desktops, tablets, supercomputers, and jewelry. Yes, jewelry. Look it up. [Michael] realized Java doesn’t run on Commodore 64s, TI-99s, and a whole bunch of other platforms. Not anymore.

Last year, [Michael] wrote Java Grinder, a Java byte-code compiler that compiles classes into assembly language instead of being part of a JVM. This effectively turns Java from a Just In Time compiled language to a normally compiled language, like C. He wrote this for the 6502/6510, the MSP430, and a Z80. The CPU in the TI-99/4A is a weird beast, though, and finally [Michael] turned this Java Grinder on that CPU, the TMS9900.

While most of the development was accomplished with the MESS emulator, [Michael] did manage to run Java on real hardware. His friend gave him a TI-99/4A a few years ago with a few cartridges. Cracking those…

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A Motor, an Arduino and a Whole Bunch of Laser Cutting

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Originally posted on Hackaday:

[Guido] was recently commissioned to build a kinetic sculpture for a client who wanted something unique. What he came up with is really awesome.

It’s called ORBIS: The Wooden Kinetic & Lighting Sculpture. It mounts to the wall and provides a focal point for the room – a bright flashy spinning one at that! Does it just stay there and do random things? Nope, of course not! [Guido] built it with a unique control box, two Arduino 2560’s and an Xbee to communicate between them.

Orbit Kinetic Sculpture

He was told to design it using old and new technologies so he’s got a rotary phone dial on the side of the box which allows the user to change through the different modes.

Switches on top also let you change the color of the sculpture and the speed at which it moves around. Since it’s wireless it can be easily set on the coffee…

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