The address on my display is 0x3F. I have a kit that was put together by the Packrats and the display works with their code. Randy VE3AX On Tue, Jun 20, 2017 at 6:02 PM, Tom Miller <tmiller11147 at verizon.net<https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts>> wrote: > Has anyone been able to get the Packrat software to work with a display? I > have been successful getting the Arduino board to initialize the > Trueposition board but can't get the display right. > > The problem seems to be getting the I2C addressing correct. There are > several 16x2 line displays available but they address at 0x20 to 0x27 and > 0x38 to 0x3F. Neither of these work. > > Since we do not have the source, is there any way to find out what address > is in use? > > Regards > > ----- Original Message ----- From: "Gregory Beat" <w9gb at icloud.com<https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts>> > To: <time-nuts at febo.com<https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts>> > Sent: Tuesday, June 06, 2017 8:44 PM > Subject: Re: [time-nuts] TruePosition on the Arduino > > >> Ben - >> I assume that you never received the Arduino "C code" >> written by Bruce, WA3YUE for the original project? >> >> Club's Powerpoint presentation indicated that source code was available. >> http://www.packratvhf.com/techinal.htm >> >> Packrat GPS Project (Gary, WA2OMY; Bruce, WA3YUE; George, KA3WXV) with >> TruePosition GPSDO and Arduino >> by The Mt. Airy VHF Radio Club "Pack Rats" (Southampton, PA). >> http://www.qsl.net/wa2omy/A%20Packrat%20GPS%20Receiver%20Project.pdf >> >> greg, w9gb >> == >>> >>> original message / digest < >> >> I'm getting to the point that once I've got the button logic working, I'll >> send out my source to anyone who wants to take a look at it or use it. >> I will stipulate one condition - you can't make too much fun of how poorly >> programmed it is. ;) >> thanks much and 73, >> ben, kd5byb >> == >> Sent from iPad Air >> _______________________________________________ >> time-nuts mailing list -- time-nuts at febo.com<https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts> >> To unsubscribe, go to >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. > > > _______________________________________________ > time-nuts mailing list -- time-nuts at febo.com<https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts> > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. -- Chris Albertson Redondo Beach, California