Hello,
I am not able to initialize the SD card. Can't find figure out what the issue is. It fails at the condition
if (!SD.begin(D8)) {
Serial.println("initialization failed!");
return;
}
I am using D1 Mini V2 board and standard SD card module. Pin configuration attached with images below.
Connections are -
GND => GND
VCC => 3.3V
MISO => D6
MOSI => D7
SCK => D5
CS => D8
Code is -
#include <SPI.h>
#include <SD.h>
File myFile;
void setup() {
// Open serial communications and wait for port to open:
Serial.begin(115200);
Serial.print("Initializing SD card...");
if (!SD.begin(D8)) {
Serial.println("initialization failed!");
return;
}
Serial.println("initialization done.");
// open the file. note that only one file can be open at a time,
// so you have to close this one before opening another.
myFile = SD.open("test.txt", FILE_WRITE);
// if the file opened okay, write to it:
if (myFile) {
Serial.print("Writing to test.txt...");
myFile.println("testing 1, 2, 3.");
// close the file:
myFile.close();
Serial.println("done.");
} else {
// if the file didn't open, print an error:
Serial.println("error opening test.txt");
}
// re-open the file for reading:
myFile = SD.open("test.txt");
if (myFile) {
Serial.println("test.txt:");
// read from the file until there's nothing else in it:
while (myFile.available()) {
Serial.write(myFile.read());
}
// close the file:
myFile.close();
} else {
// if the file didn't open, print an error:
Serial.println("error opening test.txt");
}
}
void loop() {
// nothing happens after setup
}
