I'm still trying to digest all the ideas and yes a USB interface would be the best. I'm not sure if this may be part of the puzzle or not. http://www.sparkfun.com/products/8165
It does seem to me that a thermocouple amplifier chip would be needed like the AD594 or the thermocouple to digital converter like the Max6675. Could the Max6675 be connected with it's serial interface directly to a USB in a laptop? Thanks for all the ideas... I know there is a good solution out there to be found. John Dave wrote: > Wow. That SPI interface is a lot simpler than I thought it would be. > Nice! > > But this doesn't address the issue of using a laptop that does not have > a LPT port. > > Still it is a slick solution. > > Thanks for sharing that. > > I would think that JT would want to use a newer laptop for this app - > which would not have a LPT port.. after all we are talking barbecue. :-) > > There are a few memorable places I have had really good smoked > barbecue. Kansas City - I camped out there for months back in the > 80's. Land between the lakes Kentucky (a customer insisted that we go > there for dinner - he didn't mention that it was over an hour away!), > several locations in Texas, and a place in North Carolina where we > waited in line for about a half an hour due to the crowd at lunch time. > The Montgomery Inn / Ribs King in Cincinnati is right up there for ribs, > but I don't think they smoke their ribs, so they might not count. > > Dave > > > On 12/21/2010 8:43 AM, Kirk Wallace wrote: > >> On Tue, 2010-12-21 at 06:21 -0700, Jonathan George wrote: >> >> >>> Ok, so my whole point was that in my opinion the best device for >>> digitizing a thermocouples milli-volt signal is the MAX6675 IC. This >>> device is great because all you have to do is hook the thermocouple up >>> to it and read the temperature using some SPI interface. I have used >>> these devices with an Arduino (read cheap and easy IO) with EMC and >>> other software. You can read several of these devices using an arduino >>> and I think it is the cheapest way to get a thermocouple signal into a >>> PC. >>> >>> >> Or rather MAX6674: >> http://datasheets.maxim-ic.com/en/ds/MAX6674.pdf >> >> One could just use a MAX6674, modify the number of clock bits and pin >> names in LTC1286.comp: >> http://www.wallacecompany.com/machine_shop/EMC2/serial_adc/LTC1286.comp >> >> Name it MAX6674.comp., comp it, three wires to a parallel port breakout >> board, hook up the pins and function in your .hal file and done. >> >> > > ------------------------------------------------------------------------------ > Forrester recently released a report on the Return on Investment (ROI) of > Google Apps. They found a 300% ROI, 38%-56% cost savings, and break-even > within 7 months. Over 3 million businesses have gone Google with Google Apps: > an online email calendar, and document program that's accessible from your > browser. Read the Forrester report: http://p.sf.net/sfu/googleapps-sfnew > _______________________________________________ > Emc-developers mailing list > Emc-developers@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-developers > ------------------------------------------------------------------------------ Forrester recently released a report on the Return on Investment (ROI) of Google Apps. They found a 300% ROI, 38%-56% cost savings, and break-even within 7 months. Over 3 million businesses have gone Google with Google Apps: an online email calendar, and document program that's accessible from your browser. Read the Forrester report: http://p.sf.net/sfu/googleapps-sfnew _______________________________________________ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
