I am deeply humbled by your help, and consideration. I had envisioned it would have a simpler solution, but, alas, I am so dumb, I couldn't see it!!! Thank you for pointing this out to me. I understand what was done now, and I was trying to over simplify a routine, for a learning experience. I know I tried something a bit over my head to start, but, I always dive in head first. I learn better that way, I guess. I am reading the Arduino Programming book, from Sam's, and it is not able to give me the in depth answers I am looking for.
My goal, is to create a program, to read several devices, actively store the data on a mini-SD card, for analysis after its deployment and completion of it's use for each deployment. I am adequate at designing the hardware. I need to get EXTREMELY more efficient, and better at the software, and programming. I will make it, I will just have to be diligent in my learning curve with the "C" language use here.
Just a question about a future routine... I know I am WAY ahead of myself, but, I have the hardware just about ready, and I need to stay focused on the end result. Here is the question -- If I have several, shall we say 4 devices to be read, and can each device have a set spot on the SD card storage, so it is easily accessed, and not over storing data? Like a file folder, as an example? I do NOT want streamed data on the card, but, start, mid range, end of max increase of data.
I believe most of my sensors are serial data communication. I have this process in using the "KISS" principle, so I am going to assume there are already routines written for most of these devices, and all I need is to modify each to accomplish the desired data acquisition.
Again, folks, I thank you for being so forthright, and helpful to a newbie programmer, and I hope I NEVER make myself look as stupid as I feel about this extremely talented group of people, who show their outstanding talent, in this new age of programmable controllers.
Bless all of who looked, took time to answer, and helped me off to start thinking more and deeper on the methods I need to learn!!!!
MANY, MANY, thanks!!!
Retired_Phart...