1. /*
2. Adafruit Arduino - Lesson 12. Light and Temperature
3. */
4.  
5. #include <LiquidCrystal.h>
6.  
7. int tempPin = 0;
8. int lightPin = 1;
9.  
10. // BS E D4 D5 D6 D7
11. LiquidCrystal lcd(7, 8, 9, 10, 11, 12);
12.  
13. void setup()
14. {
15. lcd.begin(16, 2);
16. }
17.  
18. void loop()
19. {
20. // Display Temperature in C
21. int tempReading = analogRead(tempPin);
22. float tempVolts = tempReading * 5.0 / 1024.0;
23. float tempC = (tempVolts - 0.5) * 100.0;
24. float tempF = tempC * 9.0 / 5.0 + 32.0;
25. // ----------------
26. lcd.print("Temp F ");
27. lcd.setCursor(6, 0);
28. lcd.print(tempF);
30. // Display Light on second row
31. int lightReading = analogRead(lightPin);
32. lcd.setCursor(0, 1);
33. // ----------------
34. lcd.print("Light ");
35. lcd.setCursor(6, 1);
36. lcd.print(lightReading);
37. delay(500);
38. }