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Homeroasters - Home Roasting Coffee Community » ALL ABOUT ROASTERS » Gene Cafe Roaster

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Page 2 of 2: 12

make a programmer for the gene cafe
kernelhmm	#26 Posted on 03/12/2012 10:40 AM
Newbie Posts: 5 Joined: October 20, 2011	After a weekend programming. I eventually make this PID controller works. Here is a screen capture of a test. I didn't load beans and just test the basic PID functions. The first part gene is controlled by the default settings. And then I switched to PID profile. Seems it works very well :-)


mikepetro	#27 Posted on 03/12/2012 11:02 AM
Newbie Posts: 25 Joined: February 25, 2012	What software are you using, it looks interesting. Mike Petro Martinsville, VA -------------------------------- Lady Silvia, Stepless Rocky, Gene Cafe http://mikepetro.org/coffee/


bvwelch	#28 Posted on 03/12/2012 6:34 PM
1 1/2 Pounder Posts: 1064 Joined: December 27, 2007	Looks like some really neat projects going on here -- I would suggest you try to use real greens, of the expected amount/mass/payload -- it will make a big difference on PID, heat, fan, etc.


mikepetro	#29 Posted on 03/12/2012 10:40 PM
Newbie Posts: 25 Joined: February 25, 2012	Ran it under full load tonight via PID. very simple automated profile, no ramps but all setpoint changes were automated by the controller, just wanted to see what the machines fully loaded (227g) ROR was. Control was great, +/- 1 degree or better. Roast of Costa Rican looked good, will see what my cup says in 3 days....... Mike Petro Martinsville, VA -------------------------------- Lady Silvia, Stepless Rocky, Gene Cafe http://mikepetro.org/coffee/


kernelhmm	#30 Posted on 03/13/2012 2:47 AM
Newbie Posts: 5 Joined: October 20, 2011	Quote mikepetro wrote: What software are you using, it looks interesting. I didn't find any appropriate temperature log software. So I wrote one by myself.


kernelhmm	#31 Posted on 03/13/2012 9:07 AM
Newbie Posts: 5 Joined: October 20, 2011	This time a real roast testing with 150g beans. I slightly modified the programm to add a PID output power curve, which is showed in yellow line. I think 150C for 6 minitues dry cycle may not be enough. And after 20minites roast I just got a city+ result. Maybe you already notice there are a few jumps of PId output. Those jumps happened when i try to mannually offset the PID set value, e.g. +5C or -5C. So just neglect them. Edited by kernelhmm on 03/13/2012 9:39 AM


bvwelch	#32 Posted on 03/13/2012 7:24 PM
1 1/2 Pounder Posts: 1064 Joined: December 27, 2007	Quote kernelhmm wrote: [I didn't find any appropriate temperature log software. So I wrote one by myself. Is there any chance this program could work with our TC4 ? We need more choices on the PC/host side of things. thanks! -bill


kernelhmm	#33 Posted on 03/18/2012 8:31 AM
Newbie Posts: 5 Joined: October 20, 2011	Quote bvwelch wrote: Quote kernelhmm wrote: [I didn't find any appropriate temperature log software. So I wrote one by myself. Is there any chance this program could work with our TC4 ? We need more choices on the PC/host side of things. thanks! -bill Does TC4 use serial port to exchange data with PC? If so, I think it could be. The program itself is very simple, and isn't well polished. I am afraid it could only run on my PC :-( (need serveral external java lib and dll). But if someone consider it is useful, I can contribute my source.


JimG	#34 Posted on 03/18/2012 2:29 PM
1 1/2 Pounder Posts: 834 Joined: October 23, 2008	Quote kernelhmm wrote: Does TC4 use serial port to exchange data with PC? If so, I think it could be. The program itself is very simple, and isn't well polished. I am afraid it could only run on my PC :-( (need serveral external java lib and dll). But if someone consider it is useful, I can contribute my source. Yes, it has a serial interface that has been configured to work with a few different host programs. There is an open source repository for the project's code here: http://code.googl...c4-shield/ If you would be willing to have your source posted there, and I hope you are, please send me a PM and I will get it done. Jim
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