open source hardware (adolescence)open source hardware (adolescence) limor fried - phillip torrone....
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Open Source Hardware(adolescence)
Limor Fried - Phillip Torrone
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I see no social imperative for free hardware designs like the imperative for free software. Freedom to copy software is an important right because it is easy now--any computer user can do it. Freedom to copy hardware is not as important, because copying hardware is hard to do.
On "Free Hardware"By Richard Stallman - Linux Today, 1999
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There are a few definitions, some of which come from "open source software," which is usually considered software's "source code under a license (or arrangement such as the public domain) that permits users to study, change, and improve the software, and to redistribute it in modified or unmodified form."
So how does this translate to hardware?
Electronic hardware can be divided up into layers, each of which has different document types and licensing concerns.
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It’s a 7 layer burrito...
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Hardware / Mechanical Diagrams
• Dimensions for enclosures, mechanical subsystems, etc.
• For 2D models, preferred document type is vector graphics file, with dimension prints, DXF, or AI, etc.
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Motor-driven screw block from the RepRap 's thermoplast extruder head, an open source 3D printer.
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Schematics & Circuit Diagrams
• Symbolic diagrams of electronic circuitry, includes parts list (sometimes inclusively).
• Preferred document type is any sort of image (PDF, BMP, GIF, PNG, etc).
• Often paired with matching layout diagram.
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3.3V and 5V regulator schematic from Chumby, the open source information device.
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Parts List (BOM)
• What parts are used, where to get them, part numbers, etc.
• Ideally - have data sheets, generic, easy to get, notes and specifications. (No fucking NDAs)
• Standard format is a text file, BOM (bill of materials).
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Parts List from the open source Roland 303 MIDI synth clone, the x0xb0x.
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Layout Diagrams
• Diagrams of the physical layout of electronic circuitry, including the placement of parts, the PCB copper prints, and a drill file. This is often paired with a schematic. Preferred distribution is Gerber RS274x and Excellon (for drills).
• These are like PostScript for printers but the primitives aren't text and arcs, they're lines of solder and components.
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Board (.brd) files for the MAKE: Daisy Open Source MP3 Player.
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Board (.brd) files for the MAKE: Daisy Open Source MP3 Player.
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Core/Firmware
• The source code runs on a microcontroller/microprocessor chip. In some cases, the code may be the design of the chip hardware itself (in VHDL/Verilog/RTL, etc...).
• Preferred distribution: text file with source code in it, as well as compiled 'binary' for the chip.
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Open core 8080 compatible CPU code snippet from executing the 8080 instruction set.
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Software/API
• The source code that communicates or is used with the electronics from a computer (if applicable).
• Any drivers necessary for the chipset.
• Preferred format is source code and binaries.
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A screenshot of the Arduino IDE showing a simple example program.
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Each level can be open sourced, but the exact nature of what it means to open it varies.
In practice, not every layer is fully open. Often only a subset of the layers are released, documented, or open source.
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The WRT54GL wireless router only has the firmware open sourced (GPL).
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The Roomba robot vacuum has an "open" API (interface).
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The Ambient Orb (information device) is not open source, but the schematics and parts list are documented and available for people to tinker with and possibly build their own.
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“Jaldi” battery charger for rural areas
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“Neuros OSD” schematics
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“Neuros OSD” schematics
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“Simputer” licensing fees - ‘cannibalizing’ the GPL
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Licensing
• Because hardware is mostly based on patents, not copyright, different licenses may be better.
• Creative Commons, GPL / LGPL, BSD, MIT
• The TAPR Open Hardware License (2/07)
• Chumby HDK License (3/07)
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Business models
• Compiling software is free, but the software is complex, so companies try to make money on support.
• Compiling hardware is costly, but scales very easily, so profit can be made on the assembly service.
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Business models
• Arduino - Assembled dev boards (20k?)
• Chumby - Direct to consumer
• Fab@Home - 3rd party sells kits
• Daisy MP3 player - Direct to resellers
• Adafruit - kits, direct to maker/wholesale
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Why?
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Projects and examples
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RepRap & Fab@Home - Desktop fabrication
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Arduino - Physical computing
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Arduino - Protoshield / starter pack
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Arduino - Barebone Ardunino (clone)
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Arduino - Lilypad (wearable)
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Arduino - Xbee shield kit
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Arduino - Boardino (clone)
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Arduino - Twittering plants (ethernet shield)
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Arduino - Twittering plants (ethernet shield)
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Arduino - Twittering plants (ethernet shield)
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Arduino - Twittering plants (ethernet shield)
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Arduino - Motorshield
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Arduino - Motorshield (whiteboard bot)
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Wii Nunchuck adaptor (Arduino)
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Open prosthetics
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MintyBoost - Open source USB charger
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MintyBoost - Open source USB charger
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MintyBoost - Open source USB charger
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SpokePov - Persistence of vision bike lights
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SpokePov - Persistence of vision bike lights
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SpokePov - Persistence of vision bike lights
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MiniPOV - Persistence of vision
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MiniPOV - Persistence of vision
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MiniPOV - Persistence of vision
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x0xb0x - Roland 303 clone (MIDI synth)
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x0xb0x - Roland 303 clone (MIDI synth)
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WaveBubble - Open source RF jammer
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WaveBubble - Open source RF jammer
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TV-B-Gone - Open source TV turner-offer
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FireFly - Open source guitar amp
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MAKE controller kit
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MAKE controller kit
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MAKE controller kit
http://www.youtube.com/watch?v=QDRA6LNKA40
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MAKE controller kit - Used for "moaning lisa" at arse electronika.
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Chumby - Open source wi-fi bean bag computer
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LED mini- menorahs - open source for the chosen people
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Peggy - Open source LED board
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Peggy - Open source LED board
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BugLabs - Widget computing (not shipping yet)
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Some show-n-tell...
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Limor - adafruit.comPhil - makezine.com