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/*
*Name: 2020.12.12
*Author: 鱼芯电子
* LCD RS pin to digital pin 12
* LCD Enable pin to digital pin 11
* LCD D4 pin to digital pin 5
* LCD D5 pin to digital pin 4
* LCD D6 pin to digital pin 3
* LCD D7 pin to digital pin 2
* LCD R/W pin to ground
* 10K resistor:
* ends to +5V and ground
* wiper to LCD VO pin (pin 3)
* DHT11 VCC--VCC GND--GND AO--D8
*/
#include <LiquidCrystal.h>
#include <dht11.h>
#define DHT11PIN 8
dht11 DHT11;
// initialize the library with the numbers of the interface pins
LiquidCrystal lcd(12, 11, 5, 4, 3, 2);
// the setup function runs once when you press reset or power the board
void setup() {
pinMode(DHT11PIN, OUTPUT);
// set up the LCD's number of columns and rows:
lcd.begin(16, 2);
}
// the loop function runs over and over again until power down or reset
void loop() {
int chk = DHT11.read(DHT11PIN);
lcd.setCursor(0, 0);
lcd.print("Tep: ");
lcd.print((float)DHT11.temperature, 2);
lcd.print("C");
// set the cursor to column 0, line 1
// (note: line 1 is the second row, since counting begins with 0):
lcd.setCursor(0, 1);
// print the number of seconds since reset:
lcd.print("Hum: ");
lcd.print((float)DHT11.humidity, 2);
lcd.print("%");
delay(200);
//Send data over Bluetooth
Serial.print("*T" + String((float)DHT11.temperature) + "*");
Serial.print("*H" + String((float)DHT11.humidity) + "*");
}
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