Ok, I'm a noob to programing on the Arduino, and I'm wondering if someone will please help me fix this code. It is to use the DHT11 sensor and datalog its readings with a SD card shield.
The error is :
exit status 1
expected unqualified-id before 'if'
Here is the code:
[#include <dht.h>
dht DHT;
#define DHT11_PIN 7
#include <SD.h>
const int chipSelect = 4;
void setup() {
// Open serial communications and wait for port to open:
Serial.begin(9600);
while (!Serial) {
; // wait for serial port to connect. Needed for native USB port only
}
Serial.print("Initializing SD card...");
// see if the card is present and can be initialized:
if (!SD.begin(chipSelect)) {
Serial.println("Card failed, or not present");
// don't do anything more:
return;
}
Serial.println("card initialized.");
}
void loop() {
// make a string for assembling the data to log:
String dataString = "";
// read three sensors and append to the string:
int chk = DHT.read11(DHT11_PIN);
dataString += String(chk);
dataString += ",";
}
// open the file. note that only one file can be open at a time,
// so you have to close this one before opening another.
File dataFile = SD.open("datalog.txt", FILE_WRITE);
// if the file is available, write to it:
if (dataFile) {
dataFile.println(dataString);
dataFile.close();
// print to the serial port too:
Serial.println(dataString);
}
// if the file isn't open, pop up an error:
else {
Serial.println("error opening datalog.txt");
}
}
