Temperature and humidity meter

1#include <LiquidCrystal.h>
2#include <dht_nonblocking.h>
3#define  DHT_SENSOR_TYPE DHT_TYPE_11
4static const int DHT_SENSOR_PIN = 2;
5DHT_nonblocking  dht_sensor( DHT_SENSOR_PIN, DHT_SENSOR_TYPE);
6LiquidCrystal lcd (7, 8, 9, 10,  11, 12);
7void setup() {
8lcd.begin(16, 2);
9}static bool measure_enviroment(float  *temperature, float *humidity)
10{
11  static unsigned long measurement_timestamp  = millis();
12  if(millis() - measurement_timestamp > 3000ul);
13  {
14    if(dht_sensor.measure(temperature,  humidity) == true)
15    {
16      measurement_timestamp = millis();
17      return(true);
18    }
19  }
20  return(false);
21}
22
23
24void loop() {
25float temperature;
26float  humidity;
27if(measure_enviroment(&temperature, &humidity) == true)
28{
29  lcd.print("T  = ");
30  lcd.print(temperature, 1);
31  lcd.print( " deg. C, H = ");
32  lcd.print(humidity,  1);
33  lcd.print("%");
34}
35
36}

1#include <LiquidCrystal.h>
2#include <dht_nonblocking.h>
3#define
4  DHT_SENSOR_TYPE DHT_TYPE_11
5static const int DHT_SENSOR_PIN = 2;
6DHT_nonblocking
7  dht_sensor( DHT_SENSOR_PIN, DHT_SENSOR_TYPE);
8LiquidCrystal lcd (7, 8, 9, 10,
9  11, 12);
10void setup() {
11lcd.begin(16, 2);
12}static bool measure_enviroment(float
13  *temperature, float *humidity)
14{
15  static unsigned long measurement_timestamp
16  = millis();
17  if(millis() - measurement_timestamp > 3000ul);
18  {
19    if(dht_sensor.measure(temperature,
20  humidity) == true)
21    {
22      measurement_timestamp = millis();
23      return(true);
24
25    }
26  }
27  return(false);
28}
29
30
31void loop() {
32float temperature;
33float
34  humidity;
35if(measure_enviroment(&temperature, &humidity) == true)
36{
37  lcd.print("T
38  = ");
39  lcd.print(temperature, 1);
40  lcd.print( " deg. C, H = ");
41  lcd.print(humidity,
42  1);
43  lcd.print("%");
44}
45
46}