Re: [LUG] Pi Output Box

[Gordon Henderson <gordon+lug@xxxxxxxxxx>]

On Sat, 2 Jun 2012, Peter Lloyd-Jones wrote:

> On 2 June 2012 09:46, Gordon Henderson <gordon+lug@xxxxxxxxxx> wrote:
>
> > My stuffs at: https://projects.drogon.net/raspberry-pi/wiringpi/ but I'm
> > in the middle (as in right now; well this morning!) of making some changes,
> > etc.
>
>
> Thanks Gordon, you have given me more than enough to be getting on with!  I
> hope I will make some progress.  What will be a challenge will  be getting
> at the port from JMRI, but first lets get the thing running.  (BTW some of
> our users have got JMRI running, but say it is slow).
>
> http://jmri.org/
>
> Thanks again, you have given me a good start.

I think there are some folks on the IRC channel using/working on JMRI - 
Ah. it's Java. That's possibly why it's somewaht sub-optimal...

My wiringPi stuff includes a command-line tool that lets you control the 
GPIO - highly frowned upon by some of the purists, but I imagine the rate 
of calls will be low and if you can call a script from Java then you can 
poke IO.. It works like this:

# Set pins 1 and 2 to outputs

  gpio mode 1 out
  gpio mode 2 out

# Set 1 and 2 on, wait, then set them off

  gpio write 1 1
  gpio write 2 1
  sleep 1
  gpio write 1 0
  gpio write 2 0

so it's hugely innefficient, but it's great for doing basic testing. 
(IMO!)

Gordon

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