Arduino Projects
DISPLAY TMP36 TO LCD
Here's a breakdown of the code:
1. You include the `Adafruit_LiquidCrystal` library to work with the LCD display.
2. Initialize a variable `seconds` to keep track of time.
3. Create an instance of the `Adafruit_LiquidCrystal` class called `lcd_1`, with a parameter of 0, which presumably specifies the LCD's I2C address.
4. Define the analog pin `sensorPin` to which the TMP36 sensor is connected.
5. In the `setup()` function:
- Begin serial communication at a baud rate of 9600 for debugging purposes.
- Initialize the LCD display with 16 columns and 2 rows.
- Print "Temperature" on the first line of the LCD display.
6. In the `loop()` function:
- Read the analog voltage from the TMP36 sensor.
- Convert the analog reading to voltage.
- Calculate the temperature in Celsius and Fahrenheit.
- Print the temperature values to the serial monitor.
- Set the cursor on the LCD display to the second line.
- Print the temperature in Fahrenheit on the LCD.
- Turn on the LCD backlight.
- Wait for 500 milliseconds before repeating the loop.
It's important to ensure that your hardware connections are correctly set up, including connecting the TMP36 sensor to analog pin A0, and the LCD display to the appropriate pins. Also, make sure you have the `Adafruit_LiquidCrystal` library installed in your Arduino IDE.
int seconds = 0;
Adafruit_LiquidCrystal lcd_1(0);
// Define the analog pin, the TMP36's Vout pin is connected to#define sensorPin A0
void setup(){ // Begin serial communication at 9600 baud rate Serial.begin(9600); lcd_1.begin(16, 2);
lcd_1.print("Temperature");}
void loop(){ // Get the voltage reading from the TMP36 float reading = analogRead(sensorPin);
// Convert that reading into voltage // Replace 5.0 with 3.3, if you are using a 3.3V Arduino float voltage = reading * (5.0 / 1024.0);
// Convert the voltage into the temperature in Celsius float temperatureC = (voltage - 0.5) * 100;
// Print the temperature in Celsius Serial.print("Temperature: "); Serial.print(temperatureC); Serial.print(" Degrees Celsius "); // shows degree symbol // Print the temperature in Fahrenheit float temperatureF = (temperatureC * 9.0 / 5.0) + 32.0; Serial.print(temperatureF); Serial.println(" Degress Fahrenheit"); // shows degree symbol lcd_1.setCursor(0, 1); lcd_1.print(temperatureF); lcd_1.print(" F"); lcd_1.setBacklight(1); delay(500); // Wait for 500 millisecond(s)
seconds += 1;}
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