I am new to the beaglebone community, so I’d first like to say hello.
A little background, I have a little bit of experience with Linux Debian, so I’m not completely new to Linux, but I’m nowhere near knowledged yet. I do have extensive knowledge with Windows platforms. I also do write some code in C, C++, HTML, Batch scripts, and am planning on finally learning some Perl.
I am working on a smoker that I have been building for some time now. I came across a 330 gallon oil tank and have put about 120 hours so far into it. I finally am approaching the point where the fabrication process is coming to fruition, and have installed K Type thermocouples. I have a Fluke temperature standard that I am using in parallel with a voltage multimeter. The thermocouples are a voltage standard, and return a small millivoltage return as temperature fluctuates
I am planning on monitoring a range of room temperature (70ish F) to 500F, even though that is way above the temperature I will be reaching. That gives me a range of 0mV to 9.5mV. I am then using Op Amps with a 175 gain to achieve a range of 0V to 1.8V (yes I realize it isn’t 1.8V exact, but I am observing the 1.8V maximum).
I then found this link which helped me understand a little bit more as far as to viewing the AIN inputs:
I understand that the above link is not exactly what I will be doing, but I think it is an OK starting as far as to view the 12 bits of information I will receive when the temperature changes
My question is, am I on the right track? What would be my next step as far as creating a continuous loop to run when beaglebone boots?
My eventual plan for this is to use a 4x40 LCD display I have and mount it on the smoker to give continuous temperature reading, and maybe even push it to an Android App to be able to monitor it remotely (802.11) from a reasonable distance