Tom -- did you also fix the code that looks for a specific string at the end of the APRS data to determine what kind of station it is?
Clay N7QNM > On Fri, May 15, 2009 at 10:31:05PM -0600, we recorded a bogon-computron > collision of the <[email protected]> flavor, containing: >> On Fri, May 15, 2009 at 10:41:31AM -0600, we recorded a bogon-computron >> collision of the <[email protected]> flavor, containing: >> > Hello all, >> > >> > I'm new to Xastir and love the software, and I have a question. >> > >> > With the new APRS Data logger for the Davis weather stations it is no >> longer >> > necessary to poll the station for data. Additionally the unit can >> stream >> > data in APRS packet format as fast as every minute. The data is >> formatted >> > as such: >> > >> > @151632z3500.03N/10620.88W_267/002g007t070r000p016P000h17b10219.DsVP >> > >> > Is there any chance of implementing this in Xastir? It would >> certainly take >> > the headache out of trying to interface my station with MySql and the >> like. >> > Thanks in advance, >> >> Hmmmm. I've been looking at this, and think that it would actually be >> even easier than I thought. >> > [...] >> >> Mike: I can hack the code, but since I don't have such a unit I can't >> test it. >> But what I can do is try to hack it into my copy, make sure the hack >> compiles, >> and then shoot you a "patch" file and instructions for applying it. >> Then you >> can test it out and let me know if it works. If it does, I'll commit >> it, and >> we can iterate if it *doesn't*. > > Patch sent. Tested by sending Mike's example string (and several > variations > on it) to a little perl script that feeds data to a PTY and connecting > Xastir > to that PTY as if it were a Serial WX unit. It was, in fact, very simple. > > If it works for Mike then I will commit it and wait for the bug reports to > come in. > > In doing this hackage, I notice that the WX decoding stuff is extremely > variable from one device to another. In some blocks, the code attempts to > calculate wind chill and heat index using formulas --- but does so in > duplicated code for some device types and not others. So the Davis/Meteo > code > computes wind chill from formulas, but not the heat index. The RSWX200 > code > gets wind chill from the unit, but computes the heat index. The Peet > Ultimeter in "Complete" mode does exactly the same thing. Every other > device > type simply doesn't fill in the heat index at all. I hacked the > Davis/APRS > Datalogger code so it does both, but by copying the code in other blocks, > compounding the mess. > > This enormous "wx_fill_data" routine could use a serious refactor so it > can > reuse code instead of duplicating it. > > -- > Tom Russo KM5VY SAR502 DM64ux http://www.swcp.com/~russo/ > Tijeras, NM QRPL#1592 K2#398 SOC#236 > http://kevan.org/brain.cgi?DDTNM > In some cultures what I do would be considered normal. > -- Ineffective daily affirmation > > _______________________________________________ > Xastir mailing list > [email protected] > http://lists.xastir.org/cgi-bin/mailman/listinfo/xastir > > _______________________________________________ Xastir mailing list [email protected] http://lists.xastir.org/cgi-bin/mailman/listinfo/xastir
