Porker,
Yes, you are right . The original is more or less a stand alone program that hogs the machine it is running on. Not what I want at all.
I'm going to go with the idea of creating a BASIC prog that I can use as a sub-routine and call it every minute from the main program to take one set of readings from each of the four inputs. Then save these to a file.
What I do at the moment (or when I use the device) is to let it run for a while, then use a small BASIC program to create a new file from every sixtieth reading of the original. Much more manageable when I pass this to my spreadsheet for graphing.
Those sensors are quite nifty, and relatively expensive.
At the moment I am getting my 'den' ready for the coming cold weather. I just won a set of six driving wheel castings on Ebay, so I will have to get back into the modelling frame of mind,
What with that and the car, there isn't even time to think about getting old.
Dave.