forked from Wien60Pioneers/beerbox
58 lines
1.1 KiB
Arduino
58 lines
1.1 KiB
Arduino
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#include <SPI.h>
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#include <SD.h>
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File myFile;
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const int chipSelect = 53;
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void setup() {
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Serial.begin(115200);
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Serial.begin(9600);
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while (!Serial) {
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; // wait for serial port to connect. Needed for Leonardo only
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}
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Serial.print("Initializing SD card...");
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// On the Ethernet Shield, CS is pin 4. It's set as an output by default.
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// Note that even if it's not used as the CS pin, the hardware SS pin
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// (10 on most Arduino boards, 53 on the Mega) must be left as an output
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// or the SD library functions will not work.
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pinMode(SS, OUTPUT);
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if (!SD.begin(chipSelect)) {
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Serial.println("initialization failed!");
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return;
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}
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Serial.println("initialization done.");
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check_for_file("p001", "per");
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}
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void loop() {
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}//end loop
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void check_for_file(String filename, String extension){
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String str = filename + '.' + extension;
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char* buf = NULL;
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str.toCharArray(buf, str.length() + 1);
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if (SD.exists("p001.per")) {
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Serial.println(str + " exists.");
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}
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else {
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Serial.println(str + " doesn't exist.");
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}
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}
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