LCD2015 update and some cleanups

LCD2015/LCD2015.ino

@@ -0,0 +1,43 @@
+#include <LiquidCrystal.h>
+
+LiquidCrystal lcd(7, 6, 5, 4, 3, 2);
+
+int   samples[30];
+float tempC;
+float tempClast = 0;
+float tempF;
+int   tempPin = 0;
+
+void setup() {
+  pinMode(13, OUTPUT);
+  lcd.begin(16, 2);
+  lcd.print("Temperature:");
+}
+
+void loop() {
+  int i;
+  tempC = 0;
+  for(i = 0; i <= 29; i++) {
+    samples[i] = (5.0 * analogRead(tempPin) * 100.0) / 1024.0;
+    tempC = tempC + samples[i];
+    digitalWrite(13, HIGH);
+    delay(1000);
+    digitalWrite(13, LOW);
+    delay(1000);
+  }
+  tempC = tempC / 30.0;
+  tempF = (tempC*9) / 5 + 32;
+  lcd.setCursor(0, 1);
+  lcd.print(tempC);
+  lcd.print("C/");
+  lcd.print(tempF);
+  lcd.print("F  ");
+  if(tempClast > tempC) {
+    lcd.print("-");
+  } else if(tempClast < tempC) {
+    lcd.print("+");
+  } else {
+    lcd.print("*");
+  }
+  tempClast = tempC;
+}

LCD2015/LCD2015.ino/LCD2015.ino.ino

@@ -1,29 +0,0 @@
-#include <LiquidCrystal.h>
-
-LiquidCrystal lcd(7, 6, 5, 4, 3, 2);
-
-float tempRaw;
-float tempC;
-float tempF;
-int   tempPin = 0;
-
-void setup() {
-  pinMode(13, OUTPUT);
-  lcd.begin(16, 2);
-  lcd.print("Temperature:");
-}
-
-void loop() {
-  tempRaw = analogRead(tempPin);
-  tempC = tempRaw/2;
-  tempF = (tempC*9)/5 + 32;
-  lcd.setCursor(0, 1);
-  lcd.print(tempC);
-  lcd.print("C / ");
-  lcd.print(tempF);
-  lcd.print("F");
-  digitalWrite(13, HIGH);   // turn the LED on (HIGH is the voltage level)
-  delay(1000);              // wait for a second
-  digitalWrite(13, LOW);    // turn the LED off by making the voltage LOW
-  delay(1000);              // wait for a second
-}