Tag Archives: DIY

Ytai Ben-Tsvi is the creative mind behind the IOIO (pronounced “yo-yo”). It is a hobby development board similar to the Arduino, but designed specifically to attach hobby peripherals to an Android phone through the USB port. I recently had a chance to interview him. What is the story behind the IOIO board and what has been your involvement thus far? In the summer of 2010 I was in California on a business trip (I was living in Israel then). A colleague of mine was telling me about the cellbots.com project that he was involved with. They were building little hobby robots based around Android phones. He was unhappy about the hacky ways they were using to connect the phone to motors and asked me whether I have an idea to fix this. After a couple of days, I thought I found a solution and that’s how IOIO was born. Another thing that makes it…

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It began as so many engineering projects do – the simple thought, “you know, it wouldn’t really be ALL that hard to do….” One of my good friends drinks a lot of carbonated water, and on her wish list is a Sodastream carbonation system. I looked at those online, and it offended my open-source sensibilities that you have to buy the filling station, the proprietary CO2 bottles, the proprietary flavoring, and the proprietary bottles to fill. Really, I thought, one should be able to buy a tank of CO2, some appropriate fittings, and do this a whole lot cheaper. Now I really don’t drink much soda, nor do I care for carbonated water, but as an engineering project this fascinated me. There are even excellent tutorials already available online on this very subject. I walked myself down the street to the welding supply shop (I love living near a technical university…

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