It appears that the switch just turns the power to the Openlog on and off. Then when you apply power the Openlog will read the config.txt file on the SD card to get its configuration info including the baud rate and the name of the file to write the logging data to and start logging. No PC is required to be connected and you move the SD card to a computer to read the logged data. Data from the PC still goes to the FA2 to set its operating modes if desired, and you can still see the data in real time on the PC.
Unless I am missing something, with this arrangement up to the last 512 characters of data will be lost if you switch off the power to the Openlog or remove the SD card. With more complex switching, 3PDT required I think, you could leave the Openlog powered on and have two modes: -- Logging mode as above where the FA2 sends data to the Openlog and the PC, and the PC data goes to the FA2, to set its operating mode. The PC would not need to be connected. -- Openlog mode where the FA2 is ignored and the PC just talks to the Openlog. In this mode, the PC can send commands to the Openlog to set it up and could also read the logged data. In either case this looks like a very clever and practicl solution. On Wed, Oct 23, 2019 at 7:05 PM shouldbe q931 <[email protected]> wrote: > On Wed, Oct 23, 2019 at 2:04 PM ew via time-nuts > <[email protected]> wrote: > > > > From Juerg Koegel > > > > 4$ Openlog > > 6$ Micro SD Card > > 1 hour work > > Bert Kehren_______________________________________________ > > Presumably one has to stop logging to access the logged data ? > > Cheers > > Arne > > -- --Jim Harman _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
