No Change for the Vending Machine? Buy Candy With PayPal

A proof-of-concept vending machine shows how we can dispense with cash for everyday purchases, skipping credit and debit cards altogether and going straight to electronic transfer.

“We’re experimenting with ways of taking PayPal payments beyond the web,” PayPal Labs’ Ray Tanaka said. At the PayPal X Innovate 2010 developers’ conference, he showed off a gumball machine that lets users use their smartphone to scan a barcode instead of fishing for change.

Tanaka and his team put together their gumball machine using an ordinary mechanical unit, an Arduino processor, a WiShield and a few other smartly-chosen basic parts.

Scanning the QR barcode sets the gumball machine in motion. Then the customer gets a Twitter notification that their PayPal payment’s gone through and how much they’ve been charged. On the merchant side, Tanaka showed off an instant payment notification system using an LCD display.

Candy is cute and “gives good demo” (as Steve Jobs puts it), but I can easily imagine a hundred and one even better uses for a simple electronic payment system like this where cash is short and speed is essential. Here’s a short list to get you started:

  • parking garages
  • public transit
  • toll booths
  • grocery checkout
  • gas stations

In short, anywhere you need to be on the move and would rather not whip out your wallet.

Story via the Arduino Blog and Helablog.

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Source:wired.com

Posted under Gadget Reviews

Will the Internet of Things Be Open or Closed?

At some point in the future, many more everyday objects will have tiny embedded chips that can communicate with networks. But just as we’re debating net neutrality and the value of the open web vs closed client applications, we will have to decide who will control the internet of things, too.

Lines are already beginning to be drawn. Ashlee Vance, writing for the New York Times’ Bits blog, profiles chipmaker ARM’s efforts to bring the internet of things to the masses with its mbed project.

The goal of mbed is to make building prototype objects and programs easier for people who aren’t necessarily used to writing programs or hacking at the guts of electronic devices. It has two main components: a simple $59 microcontroller, and an online drag-and-drop program compiler. This user video by steveravet shows mbed in action, rewiring a Billy Bass novelty talking fish to say funnier things:

Ultimately, though, the idea is to create practical applications to help users in the field. ARM’s Simon Ford told the Times: I want to see how you get people to experiment. Maybe a washing machine repair man will figure out how to get the machines to report back to him and revolutionize the machines to get a competitive advantage. The point is that I dont know what theyll be used for.

Now, at Adafruit Industries’ blog, DIY-engineering all-star Limor Fried counters the Times’ warm enthusiasm for ARM’s approach with some ice-water skepticism: “mbed requires an online compiler, so that you are dependent on them forever. You cannot do anything without using their online site, ever.”

Fried adds: “We like the hardware in the mbed, the cortex series is great (its why we carry an ARM Cortex M3 board now) but the ARM compiler used with mbed costs about $5,000 so maybe it will never be anywhere but online.” Adafruit notes that similar ARM boards are available with entirely open-source libraries.

Free and open-source vs. ready-for-anyone-to-use out-of-the-box: we’ve been down this road many times before. I doubt this argument will have a clear winner and loser, but it’s important that it’s clearly framed and articulated now, before any one approach gets locked-in as the default option.

Source:wired.com

Posted under Gadget Reviews

DIY Friday: Charge Your iPhone With AAs or Solar Power

Limor Fried’s MintyBoost project is a great example of DIY and commercial tech working together. Take an Altoids tin, a couple of AA batteries, and some very smart hackery, and you’ve got a lightweight USB charger that you can use to charge/run your handheld iWhatever, or almost any other phone, camera, or small device that can take a charge off USB power.

Reverse engineering Apple’s secret charging methods from adafruit industries on Vimeo.

Clive Thompson profiled Fried and her company Adafruit Industries as part of a 2008 feature in Wired on “open source hardware.” The idea is that hackers like Fried can use what they find out about consumer devices to make and sell their own products, but also to produce DIY kits and share information with others who then build their own projects.

As a case study in the value of sharing this information, consider Rob Scott. Before he took his son on a week-long bike trip, he used Fried’s schematic to hack together what turns out to be a really striking-looking solar charger for his son’s iPod.

It’s always nice to see what the maker community is doing to accessorize their retail gadgets; the results aren’t always super-polished, but they generally solve real problems in important use cases that don’t get addressed by manufacturers, either because they’re too unusual or they can’t be easily solved by more plugs, more peripherals, more complex devices that cost a lot of money. And in turn, we all find out a little bit more about how these magical devices get put together and how they work.

See Also:

  • DIY Graphing Calculator Is Built From Open Source Hardware
  • Why Arduino Is a Hit With Hardware Hackers
  • Beautifully Hypnotic Video Details Canon Macro Lens Hack
  • Hacker Stuffs MiFi Inside iPad, Ruins it in the Process

Source:wired.com

Posted under Gadget Reviews

GardenBot Makes Gardening High Tech for Geeks

Gardening is about getting your hands dirty and back in touch with nature. But if you are a geek like Andrew Frueh, a graphic designer who lives in Philadelphia, the hobby can take on a high-tech twist.

For less than $200, Frueh has created a garden automation system called GardenBot that uses open source hardware (such as the Arduino) to monitor humidity, temperature and soil conditions. The data is then poured into charts so you can view the world as the plants see it, he says.

“It’s not terribly complicated,” says Frueh, who has put the system into his 120-square-foot backyard garden that has about 20 tomato plants, collard greens, kale and peppers. “The biggest hurdles would be understanding Arduino and having some soldering experience.”

High-tech farming using soil sensors and intelligent management of water resources has been growing among professional farmers. For home gardeners, there are products such as the $50 EasyBloom Plant Sensor that will measure sunlight, temperature, water drainage and fertilizer. But some of those features require subscription, and users can’t hack or tweak it.

Chart shows the conditions in Andrew Freuh's garden over three days.

The GardenBot’s brain is the Arduino board. The rest of the system has a garden station, which is a junction box for all the sensors and a place to secure the wiring.

The key modules for the system are soil moisture sensor, soil temperature sensor, light level and water value. Each of these modules can be built separately and integrated into GardenBot.

Once GardenBot is live, it can send data to a computer so that the information is plotted on a chart and updated every 15 minutes.

Frueh decided to use open source hardware because he was excited by the Arduino microcontroller and the potential to build a system that would be based on modules.

GardenBot has made his gardening experience better and easier, says Frueh.

“We ended up using much less water this year, which was nice,” he says. “It changed how I was thinking about watering the plants.”

Frueh’s GardenBot has been running for about two months with no downtime.

If you would like to build the GardenBot yourself, check out Freuh’s well illustrated and step-by-step instructions on his website.

Photos: Andrew Frueh

Source:wired.com

Posted under Gadget Reviews