Ruby Arduino Development Google Group

Rubinius Shotgun

2008-08-04T15:13:08Z

Hi Guys
I say the "Glass" demo, and "pointed" me this way.
I'm interested in doing a "implementation" of a Rubinius/Shotgun VM
for a pic32.

First I've been doing embeeded hardware and software development for
20+ years.

Rubinius is a Rub y Implentation that features a p-code/virtual
machine implentation.

Re: Arduino Nano?

2008-07-31T10:58:21Z

Thanks for the quick responses! I'll see how it goes.

Re: Arduino Nano?

2008-07-31T02:26:03Z

JD Barnhart (of the singing glasses video) uses the Nano as well as
some of my hardware ...

Re: Arduino Nano?

2008-07-31T02:17:07Z

Hi Jacob,
RAD is as hardware independent as the Arduino software toolchain since
it uses that to do most of the work. It should work great on an
Arduino Nano.
Let us know how it turns out for you!
-- Greg

Arduino Nano?

2008-07-31T01:42:00Z

Hi,

I was considering buying an Arduino Nano board but was just wondering
if RAD was compatible. Has anyone every tried - or is RAD hardware
independent?

Thanx in advance for any help,

Jacob

RAD at OSCON

2008-07-22T17:12:19Z

Hey Everybody,
If you're in Portland for OSCON, there's a couple of great
opportunities to see talks about RAD.
First, early RAD contributor Ben Bleything is giving a talk on
Wednesday on "Controlling Electronics with Ruby" that does includes
some RAD stuff:
[link]

Re: New to RAD and Arduino

2008-07-18T23:42:42Z

I got an em408 on sparkfun. It was the cheapest GPS module I could find
that handled everything I needed
[link]
There's also some code on the arduino boards as well, if you need to parse
out GPRMC line (but that's in C, not ruby). Since I set mine up to talk to

Re: New to RAD and Arduino

2008-07-18T21:07:58Z

Scott, just a quick question, what GPS module were you using? how did
you find it.
Ray

Re: New to RAD and Arduino

2008-07-18T13:49:13Z

My idea was to send the strings out direct using the xbee with no
parsing, maybe with just an id appended to it, so that sounds like it
would work out ok.
Ray

Re: New to RAD and Arduino

2008-07-18T13:43:39Z

For GPS, & Xbee, you'll definately need to use the serial support library,
which has been included.
The only problem I've run into with GPS and RAD is how to handle the string
parsing. Generating string consts has been fine, but the string objects
that RubyToC generates don't compile with avr-gcc. Has anyone found a good

New to RAD and Arduino

2008-07-18T13:32:06Z

Hey all,

I just ordered an Arduino yesterday and have been looking at all my
options. I have a project in mind that will use an Xbee and GPS module
but that wont be for a while. I've done a lot of rails development so
RAD greatly interests me, but before I commit to using RAD over the
stock dev platform I was wondering if I would be able to use it for my

RAD Development

2008-07-16T16:56:03Z

As some of may have gathered from recent exchanges, JD and I have
gotten I2C working and I have ported over the Ds1307 Real Time Clock
library and have it up and running, reading the clock and displaying
time to a serial LCD display. I also wrote a helper routine to handle
serial EEPROMs (24LC16 to 24LC512).

Re: A little help translating from Arduino language to RAD

2008-07-16T16:39:03Z

so I could say
external_arrays "int clock[7];"
define HRS 2
and then reference it in Ruby
clock[HRS] = rtc.get(HRS,1)
or
rtc.get(clock, 1) # this all puts all 7 clock values
into the seven elements of the array
I like this last form

Re: A little help translating from Arduino language to RAD

2008-07-16T16:35:35Z

What about making the array method take three arguments:
array 32, :byte, "buffer"
the symbol is the type, the string is the name of the var, and the int
is the size of the array.
I think it's somewhat important on this stuff to keep it ruby-ish
(rather than just having the end user write the C themselves basically

Re: A little help translating from Arduino language to RAD

2008-07-16T16:21:13Z

in madrona rad, you can do :var => or :external_var =>
Here's how they differ:
var :a => :int
.cpp results:
int _a;
int a(){
return _a;
}
external_var :a => "int"
cpp results:
int d;
you can do the following with external variables (today i don't have the
cool assume an integer is an int, but why not):