First, do any of the Demo's have logging to the SD card? Looking how to learn to log the data I collect to the SD card but I want it in like a CSV type format. But any example of writing actual data to the SD would be helpful.
Second, I'm trying to understand how a blob works with a hardware register. I hope I have that right. In the OneWire or maybe the DS18b20 nuts one of them is reading a register that contains the SN of the 1-wire device, the DS18B20, and I'm trying to get at that number and save it for future use. There is an address method but it changes so I don't think it is the SN of the device that has been laser coded. The address seems to change so It would be hard to reference the same temp probe every time I think. Could be wrong about that.
I'm very new at writing code to talk to hardware and still understanding how get information from the device and put information into the device or change it's behavior settings I guess you could say.
I have the Data Sheet for the DS18B20 and can see in what register and what bits are used for the SN, just don't know how to get it out.
Thanks, any help would be most appreciated.