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Arduino sd card issues2/2/2023 Then as usual I suspected my resistive network, especially after reading this “Is there a wiring/soldering problem?” I built another one and then another! Yet the problem persisted. One after the other I tried all their example sketches without any luck. SD chip select is the key hardware option. When I tested the quick start sketch form the newly installed library, I got this error message, Then after some research I discovered that, the Arduino SD library is just a colorful wrapper for the SDfatlib, and the actual library has much more options and can be used to debug properly. * did you change the chipSelect pin to match your shield or module? Initializing SD card initialization failed. When I burned one of the example sketch to check the Card Info, I got this error “SD card initialization failed”. I have some experience with Arduino in the past (all good ones), and I expected things to work out of the box. I was getting voltage levels that were withing the absolute maximum ratings of the SD card. I had an Arduino Mega at my disposal and built a resistive network to step down the logic levels of the Arduino SPI bus at 5v to the SD card’s at 3v3. I chose Arduino as it had a vary stable FAT (File Allocation Table) library. I was working on a project that involved the use of an SD (Secure Digital) card to log data into a text file.
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