I have committed to provide an open-source energy monitoring system for about 20 residential homes, and I need a gateway device I can program that will take in data from an RS232 connected energy monitor, and then upload it to http://emoncms.org
I can do this with a GTA02 (wifi built-in, and USB-host mode), or *maybe* a GTA01 with a usb hub and wifi dongle, but I don't really want to spend a lot of time testing, so I'd rather go with something that already has wifi, or if someone is willing to test it with a GTA01. For an example of what this looks like, see http://grid.coop/meter.jpg (for the curious, you can also see my electrical usage/generation at http://emoncms.org/grid.coop/ , which is uploaded by a python program I wrote, that I'll want to run on the GTAxx ) My per-unit budget for the hardware is between $50 (bare GTA) and $150 (GTA running my python code with wifi and rs232) If anyone has some hardware lying around they'd like to sell and get a Raspberry Pi or just help out another open source hardware project. I also have some http://xess.com/prods/prod048.php boards I'd be willing to trade for a GTA if you promise you'll try compiling the http://yasep.org vhdl for the fpga ;) -- -------------------------------------------------------------------------- Troy Benjegerdes 'da hozer' ho...@hozed.org Somone asked my why I work on this free (http://www.fsf.org/philosophy/) software & hardware (http://q3u.be) stuff and not get a real job. Charles Shultz had the best answer: "Why do musicians compose symphonies and poets write poems? They do it because life wouldn't have any meaning for them if they didn't. That's why I draw cartoons. It's my life." -- Charles Shultz _______________________________________________ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
