raspberrypi expansion module

Request new hardware or ideas for the controller

Posts: 109
Joined: Sun Oct 09, 2011 6:04 am
Location: Dominican Republic
PostPosted: Sun Dec 09, 2012 8:51 am
If i get hard wire internet, put my in, I hate the wifi module.

Posts: 289
Joined: Wed May 16, 2012 9:52 pm
PostPosted: Sun Dec 09, 2012 6:48 pm
symon_say wrote:If i get hard wire internet, put my in, I hate the wifi module.

I'll second that!!
20GH QT#1
29G QT#2

User avatar
Posts: 14
Joined: Fri Nov 23, 2012 2:59 pm
PostPosted: Sat Jan 05, 2013 1:06 am
I am interested to hear more about mixing ra and pi as I have been playing with programming both.

Posts: 12628
Joined: Fri Mar 18, 2011 6:47 pm
PostPosted: Sat Jan 05, 2013 9:49 am
You could connect both UART ports together and use a java app on PI as a ethernet packet relay.
Technically, you could even run a remote shell to run avrdude and upload codes remotely.

Posts: 107
Joined: Sun Jul 22, 2012 4:51 am
Location: Singapore
PostPosted: Sat Jan 05, 2013 10:19 am
Looking forward for this to be in stores! :)
User avatar
Posts: 2812
Joined: Fri Mar 18, 2011 6:20 pm
Location: Illinois
PostPosted: Tue Jan 15, 2013 9:54 am
has anybody made any progresson this? i ask because i own 2 pi's now and a usb wifi module for the pi. of course i have all of my extra ra equipment for testing as well. if anybody has anything coded up, please let me know so i can start helping out on it. who knows, maybe i can get what we want done for some remote programming or data logging or something.

Posts: 33
Joined: Thu Sep 20, 2012 2:34 am
PostPosted: Sat Feb 02, 2013 8:41 pm
I did eventually get a Pi, but my unit proved to be flaky. It would only run for 10 minutes regardless of the power supply I used. I am just waiting to get another.

I started on a Python program running on a laptop over a FTDI breakout to the RA. I got it to the point where it could update the portal and was working on getting it handling requests from the portal when I got busy with work. Hopefully I will get back to it in the future and have something for when I finally get a working Pi.


Posts: 13
Joined: Fri Oct 05, 2012 11:01 am
PostPosted: Sat Feb 16, 2013 8:53 pm
I have been thinking about this more and begun to wonder about another approach to it, instead of having a PI talk to the RA head unit, could a PI replace the head unit entirely?

Is there any reason why one could not connect a RA expansion hub directly to a PI and then connect various RA Expansion Modules to the hub?

Posts: 12628
Joined: Fri Mar 18, 2011 6:47 pm
PostPosted: Sat Feb 16, 2013 10:08 pm
You can do that too :)

Posts: 137
Joined: Sat Feb 16, 2013 7:44 am
PostPosted: Tue Feb 19, 2013 12:09 am
rimai wrote:Cool.
So basically, the first thing we need is to have some sort of java or any other application that would read UART and send it straight to the portal server. This would take care of sending data to server.
This is the easy part.
The more complex part would be incoming data. When someone connects to PI, we need the webserver to relay messages to RA over UART too.
So, let's say PI webserver is using and port 2000 and you browse http://www. What PI needs to do is send GET / to RA via UART, read the response from RA and relay the reply to the browser.
Do you think you would be able to get this part done?

Would the easiest way to push the querystring to RA or instead create a Serial library that can read/write data in a simpler format?

Return to Requests

Who is online

Users browsing this forum: No registered users and 3 guests