/*
SG
4/19/22
This is a temperature sensor using the BME_280 and an LCD
connected to the arduino uno. When exposed to different
temperatures, it can figure out the temperature with great
precision. It then diplays that temperature (in celsius)
on the LCD
*/
#include<LiquidCrystal.h>
#include<Adafruit_BME280.h> //gets the necessary libraries
LiquidCrystal lcd(12,11,5,4,3,2);
Adafruit_BME280 bme; //temperature sensor
byte degree_symbol[8] =
{
0b00111,
0b00101,
0b00111,
0b00000,
0b00000,
0b00000,
0b00000,
0b00000
//making the degree symbol
};
void setup() {
lcd.begin(16,2);
lcd.createChar(1, degree_symbol);
lcd.setCursor(0,0);
//Writes Digital Thermometer to being with
lcd.print(" Digital ");
lcd.setCursor(0,1);
lcd.print(" Thermometer ");
delay(4000); //writes it for 4 seconds
lcd.clear();
if (!bme.begin(0x76)) { /*if statement used to make sure wires
are connected properly, by giving an error*/
lcd.print("Could not find a valid BME280 sensor, check wiring!");
while (1);
}
}
void loop() {
lcd.setCursor(0,0);
lcd.print("Temperature in Celsius"); /*prints the quotes
on the first line*/
float temperature = bme.readTemperature();/*gets a celsius
temperature reading*/
lcd.setCursor (5,1);
lcd.print(temperature);//writes the temperature in the center
lcd.write(1);//prints the degree symbol after the temperature
}
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