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Reducing SD card power consumption ... #19

Open dwblair opened 10 years ago

dwblair commented 10 years ago

Comment thread here w/ some ideas:

http://forum.arduino.cc/index.php?topic=149504.0

walkerjeffd commented 10 years ago

looks like SD.h has some bugs that prevent the card from going low power, interesting.

Another idea I've had is to temporarily store the data in memory (or EEPROM or whatever) and then write it to the card in batches. Say every 10 readings, right the last 10 readings to the SD card. Don't know if that's possible or beneficial, just an idea. Guess it depends on whether its the actual number of bytes written to the card that draws power, or the number of times opening/closing the file or somehow activating the card that matters.