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就像標題所說,我試圖從我的Arduino草圖創建一個文本文件。我的Arduino通過以太網電纜連接到我的電腦,但SD卡安裝在Arduino上,所以我假設連接到計算機(USB或以太網)並不重要。我在official Arduino documentation上找到的東西看起來非常簡單,但我無法創建文件。如何在安裝在Arduino Yun上的SD卡上創建文本文件?
這裏是我的代碼:
#include <Bridge.h>
#include <Console.h>
#include <SPI.h>
#include <SD.h>
File myFile;
void setup() {
// Start using the Bridge.
Bridge.begin();
// To output on the Serial Monitor
Console.begin();
// Open serial communications and wait for port to open:
Serial.begin(9600);
if (!SD.begin(4)) {
Console.println("initialization failed!");
//return;
}
Console.println("initialization done.");
myFile = SD.open("test.txt", FILE_WRITE);
if (myFile) {
Console.print("Writing to test.txt...\n");
myFile.println("testing 1, 2, 3.");
// close the file:
myFile.close();
Console.print("done.\n");
} else {
// if the file didn't open, print an error:
Console.print("error opening test.txt\n");
}
// re-open the file for reading:
myFile = SD.open("test.txt");
if (myFile) {
Console.print("test.txt: ");
// read from the file until there's nothing else in it:
while (myFile.available()) {
Console.print(myFile.read());
}
// close the file:
myFile.close();
} else {
// if the file didn't open, print an error:
Console.print("error opening test.txt\n");
}
}
void loop() {
Console.print("Loop\n");
delay(1000);
}
這是輸出:
initialization failed!
initialization done.
error opening test.txterror opening test.txt
Loop
[...]
Loop
至於反對我上面提供的鏈接,我使用Console
代替Serial
的打印語句。其餘的都是一樣的。我顯然已經安裝了SD卡。
任何想法的人?
你有沒有格式化SD?在哪種類型? – George
我做了,它是FAT32。 – BourbonCreams
我也已經用它來更新Arduino的軟件,並且在ssh進入Arduino之後,我可以看到目錄/ mnt/sda1 /仍然包含該文件。我甚至可以使用nano創建從終端創建文件,因此SD卡一定能夠很好地工作。 – BourbonCreams