Adding an SD/MMC card - step 1
I set up the arduino this way to connect a micro SD card to it for extra memory.
Step one is to get regulated 3.3V to the SD card. I used an LM317T and some resistors to take the 5V from the arduino and turn it into 3.3V.
I purchased the micro SD card breakout board from SparkFun electronics.
Step two will be to write the firmware. This will be discussed in my next installment.
posted by Jim Cook @ 1:55 PM
2 comments
2 Comments:
Hi, could you post your schematics using the LM317T to get 3.3V?
Or at least tell the resistors you used...
Thank ye!
Doesn't the Arduino have a 3.3v out already... could you use that instead of the LM317T?
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