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POGet value out of sd card file
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copied!<p>I have -32,-20,-30,-35,-40,-45 stored into sd card Test.cal file. I want to put them into char and then put them into array without comma inside array. At the end, result would be like this, array[0]=-32, array[1]=-20.....</p> <p>Please help!!!!!</p> <pre><code>/* SD card read/write This example shows how to read and write data to and from an SD card file The circuit: * SD card attached to SPI bus as follows: ** MOSI - pin 11 ** MISO - pin 12 ** CLK - pin 13 ** CS - pin 4 created Nov 2010 by David A. Mellis modified 9 Apr 2012 by Tom Igoe This example code is in the public domain. */ #include <SD.h> char inData[20]; int index=0; char inchar ; File myFile; String test; void setup() { // Open serial communications and wait for port to open: Serial.begin(9600); while (!Serial) { ; // wait for serial port to connect. Needed for Leonardo only } Serial.print("Initializing SD card..."); // On the Ethernet Shield, CS is pin 4. It's set as an output by default. // Note that even if it's not used as the CS pin, the hardware SS pin // (10 on most Arduino boards, 53 on the Mega) must be left as an output // or the SD library functions will not work. pinMode(53, OUTPUT); if (!SD.begin(4)) { Serial.println("initialization failed!"); return; } Serial.println("initialization done."); // re-open the file for reading: myFile = SD.open("Test.cal"); if (myFile) { Serial.println("test.txt:"); // read from the file until there's nothing else in it: while (myFile.available()) { inchar= myFile.read(); Serial.print(inchar); inData[index]=inchar; index++; } // 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 } </code></pre>

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