On Sun, 2010-12-19 at 12:41 -0600, John Thornton wrote: > On the PC side of the control would be the smarts to control > temperatures and have various recipes for different temperature profiles. > > These scenarios are common when smoking > > Control the cabinet temperature only. > Control the cabinet temperature and when the internal temperature of the > meat reaches a point change the cabinet temperature to the internal > temperature just to maintain internal temperature and sound the general > alarm! > Control the cabinet temperature and ramp from one temp to the next over > a given time span. > Have recipe controlled time and temperatures. ... snip > > It doesn't have to be fast, just be able to get the temperature info to > the PC and be able to switch on and off some SSR's. > > John
One thought I had was to use HAL and pvVCP/GladeVCP similar to a DRO which could do the logic, temperature scripting and such, but then you need to get the temperature information in. You would need an analog input. Since you don't really need real-time, you might be able to use USB and this USB datalogger I found last week: http://www.sparkfun.com/products/9147 http://www.wallacecompany.com/machine_shop/EMC2/AVR/data_logging_avr.png http://www.wallacecompany.com/machine_shop/EMC2/AVR/dcp_6935-1a.jpg (the lower board, upper board is for something else) It comes assembled and programmed. You need to connect a temperature sensor and signal conditioning (make an analog signal of 0 to +5V). I'm not sure what would happen if you plug more than one of these in. Another option is an SPI ADC: http://www.wallacecompany.com/machine_shop/EMC2/serial_adc/ -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/index.html California, USA ------------------------------------------------------------------------------ Lotusphere 2011 Register now for Lotusphere 2011 and learn how to connect the dots, take your collaborative environment to the next level, and enter the era of Social Business. http://p.sf.net/sfu/lotusphere-d2d _______________________________________________ Emc-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-developers
