On Sep 24, 2016 4:57 PM, "Denis Heidtmann" <denis.heidtm...@gmail.com> wrote: > > I am developing a logging program. The Arduino is a Uno R2. It has an > ATAfruit SD shield w/ RTC. For testing purposes I record data once per > second. When I am finished testing I will be taking data much less > frequently, although there might be random times when a few data points are > only one second apart. > > I convert the data ( a long; two strings, 3 ints) to a string in CSV > format. But often not all the data gets assembled into the string. It > seems that the += operation does not append the string to be added. >
Try simplifying things. Just write out the long and see if that works. If so move to the ints, etc and see if you can find out if one of the individual datum is causing the problem. Bill > I removed the references to the SD card and the failures went away, or so > it seems. I need to run it for a longer time, but before I removed the SD > stuff the problem showed up in two to four seconds. So let's assume that > the issue was the SD writing. > > How might I go about exploring this issue? > > Thanks, > -Denis > _______________________________________________ > PLUG mailing list > PLUG@lists.pdxlinux.org > http://lists.pdxlinux.org/mailman/listinfo/plug _______________________________________________ PLUG mailing list PLUG@lists.pdxlinux.org http://lists.pdxlinux.org/mailman/listinfo/plug
