I have been looking at SNMP intensively for the last 2 weeks. I came to appreciate the warning I saw on one of the first documents I read about it: the protocol is simple although the implementation is not :) While I am sure you can run a useful subset of SNMP on a small machine, there are much simpler protocols to use for something like that. I like the web browser client with javascript and Ajax if you need it because every device nowadays can run it, and every device is powerful enough to do a decent job with it. Now, if you feel that you absolutely need to monitor your Thunderbolt with your cell phone, I suggest you get a life :) My suggestion was mainly based on using a laptop or other "computer", just like LadyHeather does not.
On Mon, Aug 19, 2013 at 10:39 AM, Chris Albertson <[email protected] > wrote: > Sending GIF images is not a good idea for several reasons > 1) If the display updates once per second, you'd need to send an entire GIF > image every second, > 2) What if the user has a very small screen, like a cell phone, or he has a > large screen? The GIF will either be the wrong size or you need a way to > tell the server what size image to make > 3) How to zoom and change the image scale? Again all the heavy lifting > must be dome on the server side > > THis is backwards. I'd like the monitor to run on very LOW-END hardware, > like a PIC, AVR chip or whatever and hopefully without even the need to > boot an OS. > > One way to move data from a monior to a display is SNMP > http://en.wikipedia.org/wiki/Simple_Network_Management_Protocol > This can be implemented with a very light weight process and not very much > data moves over the network. Also display programs that run on the > desktop computer already exist. It is easy to query and plot SNMP data. > So makethe Thunderbolt look like an SNMP device. > > SNMP implements commends that i effect say "get me the temperature data for > the last N hours." or "set this parameter to this value". It is exactly > what is needed and we don't need to write the client side software. Unless > you'd want a custom display. > > I think the monitor should be able to run on atiny uP, something that cost > $20 or so and use very little power, under 1W. > > > On Mon, Aug 19, 2013 at 4:30 AM, Didier Juges <[email protected]> wrote: > > > I can imagine creating a screen image as a jpeg and making it available > > via the web server. > > > > I have done that before for something else (a headless device.) > > > > Didier KO4BB > > > > Chris Albertson <[email protected]> wrote: > > >On Sun, Aug 18, 2013 at 10:11 PM, Eric Williams <[email protected]> > > >wrote: > > > > > >> Would be nice if someone did a Linux port of LH that could run on a > > >> Raspberry Pi or something, then you could embed it into your T-Bolt > > >> installation. Plug in a HDMI monitor if you want to look at it all > > >the > > >> time, or come in remotely via Ethernet. > > > > > > > > >No, the display capability needs to be removed from the the software. > > > A > > >ported LH would just put the data someplace. A second program could > > >create > > >plots and it could run on a different computer. Getting rid of the > > >display would make the porting go faster and no tie you to some > > >specific > > >platform. > > > > > > > > > > > >-- > > > > > >Chris Albertson > > >Redondo Beach, California > > >_______________________________________________ > > >time-nuts mailing list -- [email protected] > > >To unsubscribe, go to > > >https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > > >and follow the instructions there. > > > > -- > > Sent from my Motorola Droid Razr 4G LTE wireless tracker while I do other > > things. > > _______________________________________________ > > time-nuts mailing list -- [email protected] > > To unsubscribe, go to > > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > > and follow the instructions there. > > > > > > -- > > Chris Albertson > Redondo Beach, California > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
