multiple log files with datalogger shield

[andywatson]

I have an Arduino Pro board along with the Adafruit datalogger shield. So far I've only been logging data from one sensor, but I can successfully write the time stamp and sensor value to the file at 5 minute intervals. But now I need to measure 6 sensors and some of them will be sampled every minute and some every 5 minutes. So instead of writing all of the data to different columns in the same log file, I'd like to have 6 different log files open, one for each sensor. Is that possible?

[adafruit_support_bill]

You can open & close the files as needed as is done here: http://forums.adafruit.com/viewtopic.ph ... le#p105627

[andywatson]

I saw that page earlier, but it wasn't clear to me if I have to open and close each file one at a time, or can you have multiple files open simultaneously and then choose which file you want to write to based on which sensor data comes in?

[adafruit_support_bill]

Yea, that wasn't the best example. SDFat does allow multiple files to be open. You would create a separate file object for each open file.

[adafruit]

the new SD library that we have in github (you installed it already) does support multiple files! the 'default' SD library does. please try it, it should 'just work' to have multiple File objects