Collabatorium On Wednesday

Our next Collabatorium is just around the corner. On Wednesday we’ll open up the Hacker Channel for another action-packed discussion on what you’re building. Show your work, see what others are doing, ask for help, offer your skills, and more. It all begins at 19:00 CET (UTC+2).

All are welcome but you need to be added as a collaborator on the Hackaday Prize Hacker Channel. Go there now and click the “Request to join this project” link on the bottom of the left sidebar.

We had a blast last week with a huge mass of hackers hanging out in our virtual hackerspace. This week we’re changing up the time zones so that hackers in different parts of the world may take part. If you’re in Europe, this should be late enough that the work day done. Make sure to drop in and represent the hacker community in your part of the world. See you on Wednesday!

The 2015 Hackaday Prize is sponsored by:

Hackaday Prize Entry: It’s Like Apple Pay, But For Receipts

There’s Apple Pay, Samsung Pay, Google Wallet, and a host of other ways to pay for stuff with your phone. What about receipts, though? Do you really need to carry around little bits of paper to prove to incredulous friends you have, indeed, bought a donut? The proof is back home, in the file. Under D, for donut.

[Hisham] is working on a very interesting system for the Hackaday Prize. It’s effectively the the opposite side of every point of sale transaction that Apple Pay, Samsung Pay, and Google Wallet are working on. Instead of handling payment, [Hisham]’s Aelph handles receipts.

[Hisham]’s project is hardware, with a small device that plugs into a point of sale terminal. This device transmits a receipt to the Aleph app (or a third party app), and uploads a PDF copy of the receipt to a server. Other than a small hardware box, there’s no additional software required for a POS terminal. For retailers, it’s as easy as plugging in a box, and for consumers, it’s as easy as downloading an app.

The hardware was prototyped on a TI LaunchPad featuring a TIVA C microcontroller. This, along with the NFC eval kit give Aleph more than enough power to connect to a company LAN and spit out a few PDFs. You can check out one of [Hisham]’s demo videos below.

There are a lot of benefits to a electronic receipts; if you ever need a receipt, odds are you’ll scan it anyway – a dead tree receipt is just inefficient. There’s also some nasty chemicals in thermal receipt paper. You only need to Google ‘BPA receipt’ for that evidence. Either way, it’s a great idea, and we long for the day that our wallets aren’t stuffed to Costanzaesque proportions, and a time where we won’t need a scanner to complete an expense report.

The 2015 Hackaday Prize is sponsored by:

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50 Winners Using Texas Instruments Parts

For the last few weeks we’ve been celebrating builds that use parts from our manufacturer sponsors of the 2015 Hackaday Prize. Today we are happy to announce 50 winners who used Texas Instruments parts in their builds. Making the cut is one thing, but rising to the top is another. These builds show off some amazing work from those who entered them. In addition to the prizes which we’ll be sending out, we’d like these projects to receive the recognition they deserve. Please take the time to click through to the projects, explore what has been accomplished, and leave congratulations a comment on the project page.

Still Time to Win!

We’re far from the end of the line. We’ll be giving roughly $17,000 more in prizes before the entry round closes in the middle of August. Enter your build now for a chance in these weekly contests! This week we’re looking for things that move in our Wings, Wheels, and Propellers Contest.

One voter will win $1000 from the Hackaday Store this week as well! Anyone is welcome to vote in Astronaut or Not. Vote Now!

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A Perfect San Francisco For Hackaday Prize Worldwide

Whew, that was a perfect day. Seriously. A few weeks back, on Saturday June 13th PCH International opened their doors for the Hackaday Zero to Product workshop. I don’t live in California, so having two huge glass garage doors making up one entire wall of your office is odd to me. But on a perfect day like this one it was something miraculous.

We opened the Workshop at 9:30am and those lucky enough to get a free ticket before the event was full streamed in. The topic at hand was a transfer of knowledge on professional level PCB design and once again [Matt Berggren] didn’t disappoint. A former Altium veteran, experienced hardware start-up-er-er, and all around circuit design guru, [Matt] has a natural and satisfying way of working with the many questions that arise while also following his epic talk framework. There must be around a hundred slides in his presentation that covers the bases from component selection, to signal routing, to material selection (substrate, copper density, solder mask material) and a lot more.

The day ran in segments…. sign-in followed by coffee and bakery goods and a talk on Open Hardware from [Ryan Vinyard]. He is the Engineering Lead at Highway1, the well-known hardware startup accelerator which provided a space for the event in the PCH Innovation Hub building. From there we dropped into the first segment of Zero to Product and started riffing on all things PCB design.

A break for salad and pizza three hours later lead into the final two sessions that are broken up by a social pause. Thanks to our Hackaday Prize Sponsors (Atmel, Freescale, Microchip, Mouser, and Texas Instruments) we had plenty of time to discuss the builds each person is planning and to connect them with sponsor-supplied dev boards to help with the prototyping.

We have an album up so that you can check out all the pictures from this event. We’ve held the Zero to Product workshop in Los Angeles, and Shenzhen as well in the recent weeks. Keep watching Hackaday to learn of future opportunities to take part in events in your area!

The 2015 Hackaday Prize is sponsored by:

Hackaday Prize Entry: DIY Eye Tracking

Deep in the dark recesses of Internet advertisers and production studios, there’s a very, very strange device. It fits on a user’s head, has a camera pointing out, but also a camera pointing back at the user. That extra camera is aimed right at the eye. This is a gaze tracking system, a wearable robot that looks you in the eye and can tell you exactly what you were looking at. It’s exactly what you need to tell if people are actually looking at ads.

For their Hackaday Prize entry, Makeroni Labs is building an open source eye tracking system. It’s exactly what you want if you want to test how ‘sticky’ a webpage is, or – since we’d like to see people do something useful with their Hackaday Prize projects – for handicapped people that can not control their surroundings.

There are really only a few things you need to build an eye tracking camera – a pair of cameras and a bit of software. The cameras are just webcams, with the IR filters removed and a few IR LEDs aimed at the eye so the eye-facing camera can see the pupil. The second camera is pointed directly ahead, and with a bit of tricky math, the software can figure out where the user is looking.

The electronics are rather interesting, with all the processing running on a VoCore It’s Linux, though, and hopefully it’ll be fast enough to capture two video streams, calculate where the pupil is looking, and send another video stream out. As far as the rest of the build goes, the team is 3D printing everything and plans to make the design available to everyone. That’s great for experimentations in gaze tracking, and an awesome technology for the people who really need it.

The 2015 Hackaday Prize is sponsored by:

Hackaday Prize Entry: Controlling Relays Over WiFi

It’s been less than a year since the ESP8266 WiFi Module was released. This is a chip whose original data sheets were only available in Chinese, could only be controlled through AT commands, and was (originally) only sold through Seeed Studio and other various Chinese retailers. It had one thing going for it: it was five dollars. For the price of a crappy sub, you can blink an LED from the Internet. Needless to say, the ESP8266 is now very popular.

There are a lot of ESP8266 projects in The Hackaday Prize this year, and [David]’s project is making great use of the relatively meager pinout of this module. He’s built an 8-channel relay controller with a WiFi interface to control industrial equipment. It’s a great project, but just of many ESP projects in the prize this year.

The ESP doesn’t have a huge number of pins, but there are enough for some serious work with the right hardware. He’s using the ESP-12 module to get the most pins, and using an SPI port expander to drive an octet of relays. It’s a simple board, but everything you need to control a bunch of relays over WiFi is right there: LEDs, reset buttons, and RS232 level conversion.

You can check out a pair of very satisfying videos of relays clicking below.

 

The 2015 Hackaday Prize is sponsored by:

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Hackaday Prize Entry: They Make FPGAs That Small?

There are a few development boards entered in this year’s Hackaday Prize, and most of them cover well-tread ground with their own unique spin. There are not many FPGA dev boards entered. Whether this is because programmable logic is somehow still a dark art for solder jockeys or because the commercial offerings are ‘good enough’ is a matter of contention. [antti lukats] is doing something that no FPGA manufacturer would do, and he’s very good at it. Meet DIPSY, the FPGA that fits in the same space as an 8-pin DIP.

FPGAs are usually stuffed into huge packages – an FPGA with 100 or more pins is very common. [antti] found the world’s smallest FPGA. It’s just 1.4 x 1.4mm on a wafer-scale 16-pin BGA package. The biggest problem [antti] is going to have with this project is finding a board and assembly house that will be able to help him.

The iCE40 UltraLite isn’t a complex FPGA; there are just 1280 logic cells and 7kByte of RAM in this tiny square of programmable logic. That’s still enough for a lot of interesting stuff, and putting this into a convenient package is very interesting. The BOM for this project comes out under $5, making it ideal for experiments in programmable logic and education.

A $5 FPGA is great news, and this board might even work with the recent open source toolchain for iCE40 FPGAs. That would be amazing for anyone wanting to dip their toes into the world of programmable logic.

The 2015 Hackaday Prize is sponsored by: