[OLPC-Asia] xorduino项目

Xin Wang dram.wang at gmail.com
Mon Jun 11 20:37:08 EDT 2012


2012/6/11 lite li <litekok at gmail.com>:
> 大家好,
>
>   谁对下面这个xorduino项目感兴趣的?
>   大家一起玩一玩?
>
>   http://cananian.livejournal.com/
>
>   可以从这里开始:
>   https://github.com/cscott/xorduino
>   https://github.com/cscott/xostick
>
> BR,
> Lite
>

这个需要自制硬件?

虽然是学嵌入式出身,不过已经三年没碰硬件了。

Lite有什么具体的想法吗?

> ;--------------------------------------------------
> June 9th, 12:06
>
> I banged out two open hardware designs this week, designed for use with
> the OLPC XO laptops.
>
> The first is the XOrduino, a stripped down low-cost Arduino-compatible board
> that plugs right into the XO's USB ports. But wait, there's more: it's also
> compatible with the Scratch Sensor Board, so you can use this device to
> control Scratch (and Turtle Art?). It should be compatible with the Arduino
> IDE and all Arduino Leonardo-compatible shields.
>
> The board uses mostly through-hole parts, with one exception, and there are
> only 20 required components for the basic Arduino functionality, costing
> about $5 (from digikey, quantity 100). It is reasonable for local labor or
> even older kids to assemble by hand.
>
> It's open hardware: Eagle design files are on github (schematic PDF, pcb
> PDF). I expect to have a small number of boards in a few weeks; let me know
> if you'd like one in exchange for help with hardware and software bring-up.
> Schematic and layout review also appreciated (I did the PCB routing late at
> night under time pressure leaning heavily on autoroute, it's certainly not
> the prettiest). And feedback from Arduino and Arduino shield hackers would
> also be welcome.
>
> If $5 per student is too much money, there's also the XO Stick, my second
> board. It's based on the AVR Stick using the ATtiny85 processor and costs
> only $1/student. It's not quite as user-friendly as the Arduino-compatible
> board, but it can also be used to teach simple lessons in embedded
> electronics. For $0.12 more you can populate an ATtiny261A and get 13 I/O
> ports; this variant should be powerful enough to program other XO Sticks and
> perform XO maintenance tasks (accessing the serial console, debricking a
> laptop via SPI flash). The XO Stick is even easier for a kid to assemble
> themself: only 8 required components, all through-hole. (Sadly, my desire to
> shave every penny off the cost of this design meant that I couldn't use some
> of the symmetry tricks I invented for a 2012 Mystery Hunt puzzle to make the
> circuit impossible to assemble incorrectly.)
>
> Same deal as the XOrduino: design files on github (schematic PDF, pcb PDF);
> I expect to have a few boards available to people who want to help make some
> software for them. Schematic and layout review is also appreciated!
>
>
>
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> OLPC-Asia at lists.laptop.org
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>



-- 
Xin Wang (http://dram.me/)


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