Members of the MIT Media Lab can teach you how to create the devices on which so much of their work has depended.

It may not be the iPhone 5S or a new Samsung, but it works, you understand how, and you made it yourself. David Mellis, one of the creators of the Arduino platform, has released the blueprints for a DIY cellphone that is a “a difficult but potentially do-able project.” The project uses the widely available Arduino GSM shield, through which Arduino-based machines access the internet over cellular networks, and added support for a display, buttons, speakers, a microphone and a full interface to its hardware and software. The resulting phone can send and receive calls and text messages, store names and numbers, and tell the time. OSH Park will print three copies of the phone's circuit board for around $60, but the rest of the project's components bring its cost up to $200, highlighting the material costs involved in building such a device – no, it's not all just markup these days.

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