Temperature and Light on an LCD

1/*For more details and information on the code used to get the temperature  sensor to work properly, visit my previous project*/
2#include <LiquidCrystal.h>
3LiquidCrystal  lcd(12, 11, 5, 4, 3, 2);
4const int sensorPin = A0;
5float fntemp;
6float  sum;
7float voltage;
8int sensorVal;
9int count;
10float lux=0.00,ADC_value=0.0048828125,LDR_value;//Conversion  of the
11float lux2=0.00,LDR_value2;//photoresistor value to the SI Unit of lux
12float  lux3=0.00,LDR_value3;
13float lux4=0.00,LDR_value4;
14void setup() {
15  Serial.begin(250000);
16  lcd.begin(16, 2);
17  lcd.setCursor(0, 0);
18  sum = 0.0;
19  voltage = 0.0;
20  fntemp = 0.0;
21  sensorVal = 0;
22  count = 0; 
23  pinMode(A1,INPUT); 
24  pinMode(A2,INPUT);
25  pinMode(A3,INPUT);
26  pinMode(A4,INPUT);  
27}
28
29void  loop() {  
30  if (count < 30) {
31    sensorVal = analogRead(sensorPin);
32    voltage = (sensorVal/1024.0)*5.0;
33    sum += ((voltage-0.5) * 100);
34    count  ++;
35    delay(1);
36  }
37  else {
38    fntemp = sum / count;
39    count  = 0;
40    sum = 0.0;
41  }
42  Serial.println(fntemp);
43  lcd.print(fntemp);
44  lcd.print(" C");
45  lcd.setCursor(0, 1);
46  delay(100);
47  LDR_value=analogRead(A1);
48  lux=(250.000000/(ADC_value*LDR_value))-50.000000;
49  LDR_value2=analogRead(A2);
50  lux2=(250.000000/(ADC_value*LDR_value2))-50.000000;
51  LDR_value3=analogRead(A3);
52  lux3=(250.000000/(ADC_value*LDR_value3))-50.000000;
53  LDR_value4=analogRead(A4);
54  lux4=(250.000000/(ADC_value*LDR_value4))-50.000000;
55  float luxa = (lux + lux2  + lux3 + lux4) / 4;
56  delay(100);//All delay values can be tweaked to your desires.  I found
57  Serial.println(luxa);//the values that are currently set as the
58  lcd.print(luxa);//optimum.
59  lcd.print(" lx");
60  lcd.setCursor(0, 0);
61}
62

1/*For more details and information on the code used to get the temperature   sensor to work properly, visit my previous project*/
2#include <LiquidCrystal.h>
3LiquidCrystal   lcd(12, 11, 5, 4, 3, 2);
4const int sensorPin = A0;
5float fntemp;
6float   sum;
7float voltage;
8int sensorVal;
9int count;
10float lux=0.00,ADC_value=0.0048828125,LDR_value;//Conversion   of the
11float lux2=0.00,LDR_value2;//photoresistor value to the SI Unit of lux
12float   lux3=0.00,LDR_value3;
13float lux4=0.00,LDR_value4;
14void setup() {
15  Serial.begin(250000);
16   lcd.begin(16, 2);
17  lcd.setCursor(0, 0);
18  sum = 0.0;
19  voltage = 0.0;
20   fntemp = 0.0;
21  sensorVal = 0;
22  count = 0; 
23  pinMode(A1,INPUT); 
24   pinMode(A2,INPUT);
25  pinMode(A3,INPUT);
26  pinMode(A4,INPUT);  
27}
28
29void   loop() {  
30  if (count < 30) {
31    sensorVal = analogRead(sensorPin);
32     voltage = (sensorVal/1024.0)*5.0;
33    sum += ((voltage-0.5) * 100);
34    count   ++;
35    delay(1);
36  }
37  else {
38    fntemp = sum / count;
39    count   = 0;
40    sum = 0.0;
41  }
42  Serial.println(fntemp);
43  lcd.print(fntemp);
44   lcd.print(" C");
45  lcd.setCursor(0, 1);
46  delay(100);
47  LDR_value=analogRead(A1);
48   lux=(250.000000/(ADC_value*LDR_value))-50.000000;
49  LDR_value2=analogRead(A2);
50   lux2=(250.000000/(ADC_value*LDR_value2))-50.000000;
51  LDR_value3=analogRead(A3);
52   lux3=(250.000000/(ADC_value*LDR_value3))-50.000000;
53  LDR_value4=analogRead(A4);
54   lux4=(250.000000/(ADC_value*LDR_value4))-50.000000;
55  float luxa = (lux + lux2   + lux3 + lux4) / 4;
56  delay(100);//All delay values can be tweaked to your desires.   I found
57  Serial.println(luxa);//the values that are currently set as the
58   lcd.print(luxa);//optimum.
59  lcd.print(" lx");
60  lcd.setCursor(0, 0);
61}
62