A simple sense-log-sleep loop for the TMP36.

tmp36-sls.ino

/**************************************
 * VARIABLES AND PINS
 **************************************/

/* Declare a variable to store the sensor reading. */
int theReading;

/* Declare the pin we have attached the sensor to. */
int TMP36 = A0;

/**************************************
 * SETUP
 **************************************/
void setup () {
  /* Set the speed that we send data to the SD card. */ 
  Serial.begin(9600);
}

/**************************************
 * LOOP
 **************************************/
void loop () {
  /* Read from the sensor. */
  theReading = analogRead(TMP36);
  
  /* Print the value. This sends it to the SD card. */
  Serial.println(theReading);
  
  /* Wait for 10 seconds (for testing purposes). Later, we'll change this. */
  waitMinsSecs(0, 10);
  
}

/**************************************
 * HELPER FUNCTIONS
 **************************************/

/* FUNCTION: 
      waitMinsSecs(mins, secs)
   PURPOSE: 
      A fancy version of "delay".
   USE:
      waitMinsSecs(1, 0) would wait one minute and zero seconds.
      waitMinsSecs(5, 30) would wait five minutes and 30 seconds.
      waitMinsSecs(0, 5) would wait zero minutes and five seconds.
*/
void waitMinsSecs (int mins, int secs) {

  int m, s;
  
  /* Loop for the number of minutes the programmer specified.
     This could be zero, in which case, nothing happens here.
  */
  for (m = 0; m < mins; m++) {
    for (s = 0 ; s < 60; s++) {
      delay(1000); 
    }
  }
  
  /* Loop for the number of seconds the programmer specified.
     This could also be zero, in which case, nothing happens here, either.
  */
  
  for (s = 0; s < secs; s++) {
    delay(1000);
  }

}