I have a few simple scripts that are writing to the display using the screenyx. It seems to fun fine for awhile...and then the screen goes blank. If I send a clear (via owhhtpd) the display wakes up and continues to run....for awhile. Clearing the display always seems to restore it. I'm assuming that my script is somehow turning the display off (by sending bad data?, and clearing it forces it to turn back on.
As for garbage, I had lots of it...until I remembered to add pull-ups on the i/o lines. No more garbage anymore. I currently have about 25 sensors on a network that is about 100-150' long. All of my sensors (ok, all that are installed permanently, and not just being tested) are wired so that 1 pair goes down to a sensor, and 1 pair comes back on the same run of CAT5, such that all stubs are actually daisy-chained. Oh, I'm running 2.8p14. Bruce -----Original Message----- From: Markus Gaugusch [mailto:mar...@gaugusch.at] Sent: Tuesday, January 10, 2012 2:03 PM To: OWFS (One-wire file system) discussion and help Subject: Re: [Owfs-developers] Help with DS2408 LCD_H/onoff Hi Bruce, Interesting question! I built one myself and I also had that problem. But even worse, my display doesn't work very reliable. After using screenyx for a few times, the LCD only showed garbage and I had to restart owserver to get it into a sane state again. Did you experience that too? I'm using "clear" and "message" now to write to my LCD. It works fine most of the time, although some writes still cause garbage to be displayed (but it heals itself with the next write). It happened in my Test-Network (only on my desk) as well as on my larger home network (~100m cat5 cable, mostly "bus" topology, with a few exceptions). Therefore I'm confident that this is a software problem (especially regarding screenyx, because it requires an owserver restart). I'm using 2.8p13. best regards, Markus On Jan 10, brucek <bru...@valinet.com> wrote: > I have an LCD I put together based on the hobbyboard design, and I cant for > the life of me figure out what the LCD_H/onoff wants to see. > > > LCD_H/onoff <http://owfs.org/uploads/DS2408.3.html#toc16#toc16> > > > write-only, unsigned > Sets several screen display functions. The selected choices should be added > together. > > 1. Display on > 2. Cursor on > 3. Cursor blinking > > Does this mean writing a 1 will turn the display on and a 0 will turn off? > > Does turning the display on with a blinking cursor mean writing a 4? > > I just don't get it, because nothing seems to work. > > > > I have the other LCD_H properties working as I expect (clear, home, message, > screen, screenyc) but I'm stuck on the LCD_H/onoff. > > Thanks > > Bruce > > > > -- __________________ /"\ Markus Gaugusch \ / ASCII Ribbon Campaign markus(at)gaugusch.at X Against HTML Mail / \ ---------------------------------------------------------------------------- -- Write once. Port to many. Get the SDK and tools to simplify cross-platform app development. Create new or port existing apps to sell to consumers worldwide. Explore the Intel AppUpSM program developer opportunity. appdeveloper.intel.com/join http://p.sf.net/sfu/intel-appdev _______________________________________________ Owfs-developers mailing list Owfs-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/owfs-developers ------------------------------------------------------------------------------ Write once. Port to many. Get the SDK and tools to simplify cross-platform app development. Create new or port existing apps to sell to consumers worldwide. Explore the Intel AppUpSM program developer opportunity. appdeveloper.intel.com/join http://p.sf.net/sfu/intel-appdev _______________________________________________ Owfs-developers mailing list Owfs-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/owfs-developers
