Wow! I didnt see this. That really expands its potential use cases for it. Thank you for pointing that out!
I'll look into this tonight...now I'm excited. On May 23, 2012 9:53 AM, "Kevin Wright" <[email protected]> wrote: > > > On 23 May 2012 14:16, Steven Siebert <[email protected]> wrote: > >> Indeed, you are correct. >> >> I was responding to the use cases Casper put forth. Not only would the >> Arduino be a cheaper platform, but the sensors themselves would be as well >> (RP doesn't have analog/digital IO pins exposed, as I see, so you would >> have to purchase much more expensive sensors with USB). >> > > Not so! Most of the RP expansions under development use the GPIO/I2C > header, not USB. You could use exactly the same sensors with any one of > these expansions. > > Plus you get a more powerful processor (not microcontroller) with more > memory, upgradable flash storage, the ability to run linux (including an X > server), and enough hardware graphics acceleration to support 1080p video > playback > > > RP might be good for the processing/web server component, but I've been >> using Atom boards to create JVM clusters to process and provide services >> like this. At $80-100 for the mainboard and CPU and another $20-40, >> depending how much I need, it's a great price point for an at-home cluster. >> My Atom "blades" (they sit in a wooden box/"cabinet" I created) normally >> only have 2 running (do general web serving, and manage the cluster), those >> are the only blades with discs (SSD). When I need more capacity, the >> cluster manager starts more disc-less blades (ethernet wake up on lan) and >> those blades download their TinyCoreLinux OS from the cluster, running in >> memory. Depending on what they need to do, they may get data from the >> existing node members (currently this only happens in the form of >> Hazelcast re-partition or a straight file download). Everything is >> in-memory on the processing blades, so I need to be careful. The >> OS+JVM+other services take about 50MB last time I check. >> >> Sorry for the rant...I have too much fun with this. >> >> S >> >> On Wed, May 23, 2012 at 8:50 AM, Jan Goyvaerts I❤© < >> [email protected]> wrote: >> >>> To my knowledge the RP is not a kit, but rather a computer. >>> >>> >>> On Wed, May 23, 2012 at 2:44 PM, Steven Siebert <[email protected]>wrote: >>> >>>> Arduino [1] would be cheaper for this stuff =) >>>> >>>> [1] http://www.arduino.cc/ >>>> >>>> On Wed, May 23, 2012 at 8:00 AM, Casper Bang <[email protected]>wrote: >>>> >>>>> I'm just trying to think to an excuse^H^H^H^H^H^H a smart idea about >>>>>> what >>>>>> to do with that stuff so I buy one :-) >>>>>> >>>>> >>>>> Phase 1) Make your own process historian and hook up sensors for >>>>> electricy consumption, water consumption, heat consumption, temperatures, >>>>> mailbox arrivals etc. Phase 2) Have a small webserver generate charts and >>>>> prognoses for your devices, perhaps even Android gadgets and wallpapers. >>>>> Phase 3) Add some intelligence feedback to control windows, radiator, >>>>> exhaust fan etc. :) >>>>> >>>>> > -- > You received this message because you are subscribed to the Google Groups > "Java Posse" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/javaposse?hl=en. > -- You received this message because you are subscribed to the Google Groups "Java Posse" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/javaposse?hl=en.
