If a seemingly infinitely programmable mini computer like the Raspberry Pi is just too... limiting, we've got good news: the Gertboard extender has started shipping. The $48 companion board reaching customers' doorsteps converts analog to digital and back for Raspberry Pi fans developing home automation, robotics and just about anything else that needs a translation between the computing world and less intelligent objects. The one catch, as you'd sometimes expect from a homebrew project, is the need for some assembly -- you'll have to solder together Gert van Loo's Arduino-controlled invention on your own. We imagine the DIY crowd won't mind, though, as long as they can find the fast-selling Gertboard in the first place.

[Image credit: Stuart Green, Flickr]

Filed under: Misc

Gertboard extender for Raspberry Pi ships to advanced tinkerers originally appeared on Engadget on Wed, 17 Oct 2012 03:58:00 EST. Please see our terms for use of feeds.

Sure, Red Bull may have gotten a lot of attention by sponsoring Felix Baumgartner's space dive, but it's not the only beverage-maker that has made some great accomplishments possible. The Prague-based brewery Staropramen was a sponsor at the recent Webstock 2012 conference, where the folks from Robofun Create showed off this so-called Beer Keyboard built with the brewer's backing. As you can see, it's more beer than keyboard, with 40 cans of Staropramen serving as "keys" that just need to be gently pressed to input a letter. To make that actually work, Robofun paired an Arduino board with some capacitive controllers for the base, and connected that to a Raspberry Pi that linked the keyboard to the TV. Unconfirmed reports suggest that the keyboard has since gone missing. Head on past the break for a video.

Continue reading Beer Keyboard combines Arduino and Raspberry Pi... and beer

Filed under: Peripherals

Beer Keyboard combines Arduino and Raspberry Pi... and beer originally appeared on Engadget on Tue, 16 Oct 2012 20:36:00 EST. Please see our terms for use of feeds.

With hundreds of Arduino shields available for any imaginable application, it’s a shame they can’t be used with the Raspberry Pi. Breaking out the Raspi GPIO pins to Arduino-compatible headers would allow makers and tinkerers to reuse their shields with a far more capable computing platform.

The folks over at Cooking Hacks realized a Raspi to Arduino shield bridge would be an awesome device, so they made their own, complete with a software library that allows you to port your Arduino code directly to the Raspberry Pi.

There are a few limitations with the Raspberry Pi’s GPIO headers; the Raspi doesn’t have analog inputs, so the Cooking Hacks team added an 8-channel digital to analog converter. Along with analog inputs and the headers required to pop a shield on the board, there’s also a socket for an XBee module.

The software library contains most of the general Arduino functions such as digitalWrite() and digitalRead(). There Serial, Wire, and SPI libraries are also implemented, allowing any device that communicates through UART, I2C, or SPI to talk directly to the Raspberry Pi.

While the Raspi Arduino bridge doesn’t allow for PWM in the same capacity as an Arduino, you’re always welcome to whip up a servo or LED shield for this neat little adapter.

Intel has finalized the specs of its Next Unit of Computing (NUC) board, and announced it'll go on sale in October for less than $400 with a case and power supply. Carrying a 4 x 4-inch form factor between a Raspberry Pi and mini-ITX board, it'll be equipped with a Core i3 Ivy Bridge processor, HD 4000 graphics, two SO-DIMM sockets, an M-SATA slot for an SSD drive, three USB ports, one HDMI port and a mini-PCI slot for wireless connectivity. Two different models will be offered by the chip giant, identical except that one will be Thunderbolt equipped and the other will sport an ethernet port for connectivity. Originally intended for the kiosk and signage markets, enthusiast interest compelled Intel to put the board on general sale, along with a case (pictured above) and power supply option. That'll pit it against offerings from VIA and others, while offering considerably more oomph in a similar form factor -- though a mini-server slaying Core i5 option originally proposed by Intel was dropped.

[Image credit: PC World]

Filed under: Desktops, Misc

Intel's Core i3 NUC mini-boards set to hit market in October, power up hobbyists and OEMs originally appeared on Engadget on Thu, 13 Sep 2012 12:31:00 EST. Please see our terms for use of feeds.

Primary image

Wonders around autonomously. Exhibits all 7 characteristics of life, therefore technically it is an organism.

The Raspberry Pi faithful have been looking forward to the Gertboard almost as much as the main device itself: Gert van Loo's I/O extender promises to flash lights, spin motors and otherwise take on the tasks that the Raspberry Pi doesn't directly manage on its own. While we've seen work on the project since late 2011, the expansion now looks to be closer to reality following a fresh teaser. The refined design's biggest tweak is replacing its original PIC controller with an Arduino-powered chip -- an element no doubt familiar to the crowd that would already be looking at a very hackable, miniature Linux computer. Most everything else is a refinement, although Gert has brought in three physical buttons and two-channel analog-to-digital and digital-to-analog converters. We'll learn the full story later this week, and until then we'll be dreaming of all the off-kilter Arduino projects that might be made better with a little Raspberry Pi companionship.

Filed under: Misc. Gadgets, Peripherals

Raspberry Pi teases finished Gertboard I/O extender, revs creative engines originally appeared on Engadget on Wed, 08 Aug 2012 18:41:00 EST. Please see our terms for use of feeds.

A few months ago, [Omer] sent in a Raspberry Pi to Arduino bridge he’s been working on called Ponte. Now that he’s gotten a few assembled, he can actually test out his ideas for combining the powerful Raspi with the ubiquitous Arduino.

Ponte revision 0 used a pair of 12-bit analog to digital converters, but during the soldering and debugging phase of development [Omer] discovered a few things were wrong with his original design. The FETs on the fabricated boards had the drain and source pins mixed up, but that problem was easily solved with a bit of board surgery.

The worst problem was the mechanical design of Ponte rev. 0 – the power jack on the Ponte is directly above the Raspi’s USB port, meaning it’s impossible to plug the Ponte into the Pi.

[Omer] is working on these problems and should have  the revised boards completed shortly. A few people have asked where they can get a Ponte, but right now there are no plans to assemble and ship boards. That may change, but for now if might be worth bugging [Omer] to put his new and improved Ponte (with an 8-port I2C port expander!) up on SeeedStudio

[Alexandre] wanted to set up a web-based temperature logger with his Arduino, but found the Arduino Ethernet shield a little finicky. Since his Raspberry pi was just delivered, he figured he could use the Raspi as an Ethernet shield with just a little bit of coding.

After [Alexandre] set up his Arduino to send a thermocouple through the USB, the only thing left to do was to add node.js to the Raspi’s Debian installation. Every five minutes, the Arduino wakes up, takes a temperature reading, and sends it over to the Raspberry pi. From there, it’s easy parse the Arduino’s JSON output and serve it up on the web.

In the end, [Alexandre] successfully set up his Raspberry pi as an Ethernet shield to serve a web page displaying the current temperature (don’t F5 that link, btw). One interesting thing we have to point out is the cost of setting up this online temperature logger: the Arduino Ethernet shield sells for $45 USD, while the Raspberry pi is available for $35. Yes, it’s actually less expensive to use a Raspberry pi as an Ethernet shield than the current Arduino offerings. There you have it, just in case you were still on the fence about this whole Raspi thing.