Indoor Environment Monitoring
Experimental introduction
In this experiment we will use three modules to collect data such as light, temperature, humidity and atmospheric pressure. At the same time, the data is sent and displayed on the LCD12854 through the serial port.
Experimental Materials
1X Adeept UNO Board
1X DHT-11 Module
1X Photoresistor Module
1X Barometer Module
1X LCD12864 Module
1X Breadboard
Some jumpers
Experimental connection diagram
Experiment code
/***********************************************************
File name: AdeeptLCD12864.ino
Website: www.adeept.com
E-mail: support@adeept.com
Author: Tom
Date: 2019/03/20
***********************************************************/
#include <Adeept_LCD12864RSPI.h>
#include <Adeept_DHT11.h>
#include <Adeept_BMP180.h>
#define AR_SIZE( a ) sizeof( a ) / sizeof( a[0] )
Adeept_DHT11 Adeept_dht11;
Adeept_BMP180 Adeept_bmp180(0x77);//I2C address of BMP180
#define DHT11PIN 2 //Set the digital 2 to the S pin
int photoresistorPin = 0; // photoresistor connected to analog pin 0
unsigned char show0[]=" photoresistor"; //Test the code
unsigned char show1[]=" analog: ";
unsigned char show2[]=" www.adeept.com";
unsigned char show3[]="DHT11 sensor";
unsigned char show4[]="Humi: %";
unsigned char show5[]="Temp: %";
unsigned char show6[]=" Pressure ";
unsigned char show7[] = "Pr: Pa ";
unsigned char show8[] = "Atm: ";
unsigned char show9[] = "Alti: M ";
int btnpin1 = 12; //Set the digital 12 to button module interface
int btnpin2 = 13; //Set the digital 13 to button module interface
int pageNumber = 1;
void setup()
{
pinMode(photoresistorPin, INPUT);//Set analog 0 port mode, the INPUT for the input
Serial.begin(9600); //opens serial port, sets data rate to 9600 bps
Adeept_bmp180.begin();
pinMode(btnpin1,INPUT); //Set digital 12 port mode, the INPUT for the input
pinMode(btnpin2,INPUT); //Set digital 13 port mode, the INPUT for the input
Adeept_12864.Initialise(); // The screen is initialized
delay(100);
}
void loop()
{
double dataphotoresistor = 0;
char strphotoresistor[5];
double temphumidity = 0;
double tempTemperature = 0;
char strhumidity[5];
char strTemperature[5];
char strPressure[7];
char strAtm[3];
char strAltitude[5];
dataphotoresistor = analogRead(photoresistorPin);
Serial.print("photoresistor: "); //send data to the serial monitor
Serial.println(dataphotoresistor); //send data to the serial monitor
Adeept_dht11.read(DHT11PIN);
temphumidity = Adeept_dht11.humidity;
Serial.print("humidity: "); //send data to the serial monitor
Serial.print(temphumidity); //send data to the serial monitor
Serial.println("%"); //send data to the serial monitor
tempTemperature = Adeept_dht11.temperature;
Serial.print("temperature: "); //send data to the serial monitor
Serial.print(tempTemperature); //send data to the serial monitor
Serial.println("C"); //send data to the serial monitor
double dataTemperature = Adeept_bmp180.GetTemperature(); //MUST be called first
float dataPressure = Adeept_bmp180.GetPressure();
float dataAtm = dataPressure / 101325; // "standard atmosphere"
float dataAltitude = Adeept_bmp180.calcAltitude(dataPressure); //Uncompensated caculation - in Meters
Serial.print("Temperature: "); //send data to the serial monitor
Serial.print(dataTemperature); //send data to the serial monitor
Serial.println("C"); //send data to the serial monitor
Serial.print("Pressure: "); //send data to the serial monitor
Serial.print(dataPressure); //send data to the serial monitor
Serial.println("Pa"); //send data to the serial monitor
Serial.print("Atm: "); //send data to the serial monitor
Serial.println(dataAtm); //send data to the serial monitor
Serial.print("Altitude: "); //send data to the serial monitor
Serial.print(dataAltitude); //send data to the serial monitor
Serial.println("M"); //send data to the serial monitor
//photoresistor->LCD12864
if(pageNumber==1){
dtostrf(dataphotoresistor,4,0,strphotoresistor);//Converts a floating-point number to a string
Adeept_12864.DisplayString(0,0,show0,AR_SIZE(show0));//Display: photoresistor
delay(50);
Adeept_12864.DisplayString(1,0,show1,AR_SIZE(show1));//Display: analog:
delay(50);
Adeept_12864.DisplayString(1,4,(unsigned char *)strphotoresistor,4);//Display photoresistor data
delay(50);
Adeept_12864.DisplayString(3,0,show2,AR_SIZE(show2));//Display: www.adeept.com
}
//humidity&temperature->LCD12864
if(pageNumber==2){
dtostrf(temphumidity,5,2,strTemperature);//Converts a floating-point number to a string
dtostrf(tempTemperature,5,2, strhumidity );//Converts a floating-point number to a string
Adeept_12864.DisplayString(0,1,show3,AR_SIZE(show3));//Display: DHT11 sensor
delay(50);
Adeept_12864.DisplayString(1,1,show4,AR_SIZE(show4));//Display: Humi: %
delay(50);
Adeept_12864.DisplayString(1,4,(unsigned char *)strTemperature,5);//Display humidity data
delay(50);
Adeept_12864.DisplayString(2,1,show5,AR_SIZE(show5));//Display: Temp: C
delay(50);
Adeept_12864.DisplayString(2,4,(unsigned char *)strhumidity,6);//Display temperature data
delay(50);
Adeept_12864.DisplayString(3,0,show2,AR_SIZE(show2));//Display: www.adeept.com
}
//Pressure->LCD12864
if(pageNumber==3){
dtostrf(dataPressure, 6, 2, strPressure); //Converts a floating-point number to a string
dtostrf(dataAtm, 2, 2, strAtm); //Converts a floating-point number to a string
dtostrf(dataAltitude, 4, 2, strAltitude); //Converts a floating-point number to a string
Adeept_12864.DisplayString(0, 0, show6, AR_SIZE(show6)); //Display: Temp: C
Adeept_12864.DisplayString(1, 0, show7, AR_SIZE(show7)); //Display: Pr: Pa
delay(10);
Adeept_12864.DisplayString(1, 2, (unsigned char *)strPressure, 8); //Display temperature data
delay(10);
Adeept_12864.DisplayString(2, 0, show8, AR_SIZE(show8)); //Display: Atm: Pa
delay(10);
Adeept_12864.DisplayString(2, 2, (unsigned char *)strAtm, 4); //Display temperature data
delay(10);
Adeept_12864.DisplayString(3, 0, show9, AR_SIZE(show9)); //Display: Altitude: M
delay(10);
Adeept_12864.DisplayString(3, 3, (unsigned char *)strAltitude, 6); //Display temperature data
}
if(digitalRead(btnpin1)==LOW) //Detection button interface to low
{
delay(10); //Delay 10ms for the elimination of key leading-edge jitter
if(digitalRead(btnpin1)==LOW) //Confirm button is pressed
{
pageNumber++;
if(pageNumber>=3){pageNumber=3;}
Adeept_12864.CLEAR();//Clear screen
delay(100);
}
}
if(digitalRead(btnpin2)==LOW) //Detection button interface to low
{
delay(10); //Delay 10ms for the elimination of key leading-edge jitter
if(digitalRead(btnpin2)==LOW) //Confirm button is pressed
{
pageNumber--;
if(pageNumber<=1){pageNumber=1;}
Adeept_12864.CLEAR();//Clear screen
delay(100);
}
}
delay(100);//0.1S
}Experimental phenomena
Press the two buttons to control the LCD12864 to display page turning, switch display information such as illumination, temperature and humidity.
