Hi ı want to read specific line from txt file.Here is my code.This code read all lines.What is wrong here? Thank you for your effort and knowledge.
#include <SPI.h>
#include <SdFat.h>
#define DIRECTORY_ENTRY_LENGTH 30
#define FILE_LINE_LENGTH 30
SdFat SD; //Main SD Object
int count=0;
int id=3;
void setup() {
Serial.begin(9600);
if(!SD.begin(4)){
Serial.println(" Error initializing SD Card ");
return;
}
readFile("/","NAMES.txt");
}
void loop() {
/* NOTHING */
}
void readFile(char* Path, char* FileName){
Serial.print(F(" -- Reading entries from file = "));
Serial.print(Path);
Serial.println(FileName);
SdFile directory;
SdFile file;
if(SD.chdir(Path)){
if(file.open(FileName)){
char Line[FILE_LINE_LENGTH];
memset(Line,0,sizeof(Line));
char Char[2];
memset(Char,0,sizeof(Char));
while (file.available()) {
Char[0] = file.read();
if(Char[0]=='\n'){
count=count+1;
if(count==id);{
Serial.println(Line);
}
memset(Line,0,sizeof(Line));
}
else if(Char[0]>=32)
strcat(Line,Char);
}
file.close();
}
else
Serial.println(F("ERROR: Couldn't open file."));
directory.close();
}
else
Serial.println(F("ERROR: Couldn't open path."));
Serial.println(F("DONE Reading"));
}
