45 lines
948 B
Arduino
45 lines
948 B
Arduino
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#include <Arduino.h>
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#include <SdFat.h>
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#define PIN_SPI_CHIP_SELECT_OTHER_DEVICE SS
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#define PIN_SPI_CHIP_SELECT 3
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void setup() {
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Serial.begin(115200);
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// Disable everything by default
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pinMode(PIN_SPI_CHIP_SELECT_OTHER_DEVICE, OUTPUT);
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pinMode(PIN_SPI_CHIP_SELECT, 3);
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digitalWrite(PIN_SPI_CHIP_SELECT_OTHER_DEVICE, HIGH);
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digitalWrite(PIN_SPI_CHIP_SELECT, HIGH);
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Serial.println("Setup complete");
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}
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void loop() {
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SdFat card;
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if(!card.begin(PIN_SPI_CHIP_SELECT, SD_SCK_MHZ(50))) {
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card.initErrorHalt();
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}
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SdFile file;
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if(!file.open("TEST.TXT", O_WRITE | O_CREAT | O_APPEND)) {
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Serial.println(F("Error: Failed to open microSD card"));
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while(true) delay(100);
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}
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char message[] = "strawberry\n";
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file.write(message, 11);
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if(!file.sync() || file.getWriteError()) {
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Serial.println(F("Error: Failed to open microSD card"));
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while(true) delay(100);
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}
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file.close();
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Serial.println(F("tick"));
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delay(5000);
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}
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