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November 22, 2013 AT 3:00 pm

Community Corner: A Gemma Workshop, Miditron, PiEye, Internet Enabled Fishtank, Other Treats from this Past Week in the Adafruit Community


Featured Adafruit Community Project

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Last week these Dutch teenagers learned to solder and make a GEMMA + NeoPixel ring circuit to wear and share. The workshop was held at MU as part of the FAT GOLD Europe show.

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There are people making amazing things around the world, are you one of them? Join the 67,586 strong! And check out scores of projects they shared this week after the jump!


From the Google+ Community

(Note: Google+ login required.)

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Jason Stewart shared: “I made a Thing! 🙂 I took a couple of those remote power switch things for Christmas lights, and hacked a couple of relays onto their switches. I’m going to hook them up to a networked Arduino, so I can control them with the interwebs. 🙂 (One of them is for indoor lights, the other the outdoor lights.)” (read more)


Omar EL KADMIRI shared: “Helianthus360 Solar Tracker OutDoor Experiment” (read more)


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Nikolaus Gradwohl shared: “I have successfully midified my korg monotron using an arduino uno and an mcp4822 2 channel 12-Bit DAC.” (read more)


Jeff DelPapa Google My newest creations Decisions Decisions aka my thumb at

Jeff DelPapa shared: “My newest creations: “Decisions Decisions”, aka my thumb at 15X magnification, and “A Sure Bet”, which flips real coins, as unfairly as possible. Both were built for David Rees’s series on the National Geographic Channel, they flip coins, or at least coin shaped objects. Decisions flips large coins, fairly, motivated by a pair of springs from a motorcycle. (for filming it was a 60cm disk of MDF, covered in galvanized steel). At the other end of the size spectrum was the Sure Bet, which will return a predictable result >80% of the time with a real, normally fair coin. Lift the weight to the stop (buried under the “thumb”), put a coin into the recess, and let it drop. The coin will make a single turn about its axis, and land with the same face showing more than 80% of the time.” (read more)


Jan De Coster shared: “I made a little video about yesterday’s class, when we built 33 little proto-robots in 3 hours.” (read more)


Martin Atkins Google Finally found some time today to solder the parts onto my

Martin Atkins: “Finally found some time today to solder the parts onto my first OSH Park PCB. The primary motivation for this was to learn Eagle and try out OSH Park, so I wanted to make something with only components I’d already purchased, and that’s why it has a whole Arduino Micro attached to it even though a smaller board (or even just a lone microcontroller) would’ve been sufficient. I didn’t get the displays lined up quite right, so there’s a small gap between them that looks obvious in this photo but isn’t so bad if you’re further away and looking at it head-on. But my learning for next time is to watch out for the positioning of odd-sized components.” (read more)


Makers hackers artists engineers Community Google

Christopher Smolinski shared: “Here is my twist on the Adafruit Industries steampunk goggles.” (read more)


Community Projects from the Adafruit Blog

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Jody shared a fantastic hand-made, retro-gaming, Raspi Coffee Table! A great RPi project combining carpentry and electronics: “I needed a coffee table to replace the kids Train Playset table so I set out to use my new Rasperry Pi and create a nice piece for the entertainment room. I already have a 120″ projector screen in this room so I could have easily hooked up the Raspberry Pi to the big screen, but where’s the fun in that! I had the Raspberry Pi and needed to do something with it so why not make a retro gaming platform out of it. I installed the RetroPie image that I found on the petRockBlog. This was pretty easy as all the instructions and help is located there.” (read more)


raygeeknyc shared pieye … as seen on last week’s Show and Tell – Live:”This is a simple bit of hardware and software that uses a raspberry pi and a 2 servo pan/tilt bracket to sweep a webcam across the room when motion is detected. Images and videos are uploaded asynchronously to a server so that you can check on your camera(s) from anywhere that you have Internet access.” (read more)



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Dustin Evans shared a Bluetooth NES Controller Project: “The blueNES 2 is a follow-up to the blueNES. Instead of using an Arduino, the blueNES 2 uses Adafruit’s Bluefruit. When connected to ground pins 0 – 11 on the Bluefruit will send a keyboard command. I’ve connected mine to an old NES controller. It’s that simple. The controller pinout I found on this Instructables.” (read more)


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KPWR in the Adafruit Forums shared a costume he created using an Adafruit Wave Shield: “turned into a xylophone ‘fairy’ – arduino in the box at the bottom and speaker in the candy basket.” (read more)


Hayden Kibble shared and “Internet Enabled Fish Tank”: “I imagine you’re here because you have heard about the internet enabled fish tank, the world’s most advanced taking aquarium. I made it as a one-off project purely to push my technical skills to the limit and create something awesome. I had a vision and loads of crazy ideas of what I could make it do, some seemed way beyond my level of technical skill. I’m happy to say I proved myself wrong. I’m really happy with how it turned out. Naturally there’s a few bits I’d like to neaten up or spend more time on, but overall it’s a finished project.” (read more)


buran electrix‘s Lunchbeat: “LUNCHBEAT is a 1-bit groovebox, making impossibly-dirty digital sounds, with a built-in step sequencer. While we await a proper DIY kit, it’s an ideal learning project: it’s nice and simple, has a low part count, everything you need as far as specs is available free to create your own, and it’s a good way to work out the basics of digital sound and sequencing.” (read more)


Zach Burhop shared his Arduino Powered next Keyboard in the Adafruit Forums: “I did some work with the Arduino powered NEXT keyboard tutorial. Check out my video on it!” (read more)


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