Re: Temperature Controlled rasPi 3B

2017-04-26 Thread Achim Gratz via devel
Gary E. Miller via devel writes: > Thanks, but I'm more interested in the temp/freq logging program. When it's cleaned up… Regards, Achim. -- +<[Q+ Matrix-12 WAVE#46+305 Neuron microQkb Andromeda XTk Blofeld]>+ Wavetables for the Terratec KOMPLEXER: http://Synth.Stromeko.net/Downloads.html#Kom

Re: Temperature Controlled rasPi 3B

2017-04-26 Thread Gary E. Miller via devel
Yo Achim! On Wed, 26 Apr 2017 22:45:22 +0200 Achim Gratz via devel wrote: > Gary E. Miller via devel writes: > > Yes, I remember your descriptions, what I'm asking for is code. > > reuseable code. > > Have at it. Thanks, but I'm more interested in the temp/freq logging program. RGDS GARY --

Re: Temperature Controlled rasPi 3B

2017-04-26 Thread Achim Gratz via devel
Gary E. Miller via devel writes: > Yes, I remember your descriptions, what I'm asking for is code. reuseable > code. Have at it. The datafile (joined.txt) has the UTC timestamp, PPS offset, temperature (sampled each second right after the PPS pulse and averaged over 5min or 300 samples), NTP tim

Re: Temperature Controlled rasPi 3B

2017-04-26 Thread Gary E. Miller via devel
Yo Achim! On Wed, 26 Apr 2017 21:43:03 +0200 Achim Gratz via devel wrote: > Gary E. Miller via devel writes: > > Cool. Did you use ntpheat? > > No, I've simply extended the Perl script that logs all PPS timestamps > (this also ensures that all the measurements are aligned with the > loopsta

Re: Temperature Controlled rasPi 3B

2017-04-26 Thread Achim Gratz via devel
Gary E. Miller via devel writes: > Cool. Did you use ntpheat? No, I've simply extended the Perl script that logs all PPS timestamps (this also ensures that all the measurements are aligned with the loopstats). >> I still have to add an integral >> term to the control loop in order to make the

Re: Temperature Controlled rasPi 3B

2017-04-25 Thread Gary E. Miller via devel
Yo Achim! On Tue, 25 Apr 2017 12:34:52 +0200 Achim Gratz wrote: > So, just before I left last week I managed to finally set up a > temperature controller on my rasPi 3B using three sha512sum processes > that get individually stopped and continued by the temperature control > loop every 100ms to