[ale] semi [OT] running a robot with linux

[Jim Lynch]

On 01/21/2011 02:09 PM, Michael Potter wrote:
> On Fri, Jan 21, 2011 at 1:39 PM, Jim Lynch
> <ale_nospam at fayettedigital.com>  wrote:
>
>> I've been using the Teensy++( http://www.pjrc.com/store/teensypp.html )
>> for a project.   At $24 it's reasonable to try and if it doesn't work,
>> you haven't wasted much money.  I've cut a PC board with the Teensy++
>> and the WIZ812MJ Ethernet module
>> (http://www.saelig.com/product/ETH042.htm, $19.50) to give me a ethernet
>> connected device with 130K of flash (program) memory, 8K of RAM and 4K
>> of EEPROM.  Believe me you can do a lot with that much memory.  It uses
>> the Arduino development package and is extremely easy to use.  The
>> Arduino development platform is by far the most user friendly one I've
>> come across.  It's easy to run on Linux since the IDE is written in Java.
>>
>> It uses the avr-gcc compiler which isn't 100% C++ but it has a lot of
>> the features.  Here's some sample code from one of the libraries.
>>
>> class Matrix
>> {
>>    private:
>>      uint8_t _pinData;
>>      uint8_t _pinClock;
>>      uint8_t _pinLoad;
>>
>> There's a lot of software written for the Arduino platform that is
>> tailored to interfacing to the outside world.  Since you are an EET,
>> you'll not have any problem building the electronics to interface to
>> most anything.
>>
>> The Teensy++ has 46 I/O pings 8 10 bit A/D channels, 9 PWD outputs  a
>> UART, an I2C and an SPI port.
>>
>> For instance there are motor control libraries, servo libraries,
>> ethernet libraries, A/D and D/A libraries, etc.
>>
>> Besides, it's fun to watch an led blink and know you're the one that
>> made it happen.  :)
>>
>> Jim.
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> Does it have a web server library?
Yes, however ssl is way beyond 130K.
> The application that I have in mind would require an embedded web interface.
> That is, the end user of my project would connect to and configure the
> Teensy using their webbrowser.
> I need SSL security and would need to serve simple web services and
> well as webpages.
>