Temperature sensor using Arduino Uno

A temperature sensor project with Arduino can be useful for monitoring temperature in various applications. Here's a simple guide:

Components Needed
- Arduino Board (e.g., Arduino Uno)
- Temperature Sensor (e.g., LM35 or DS18B20)
- Breadboard and jumper wires

Circuit Setup
1. Connect the temperature sensor to the Arduino:
    - VCC to 5V pin
    - GND to GND pin
    - Signal pin to an analog input pin (e.g., A0)

Code
For LM35:
const int tempPin = A0;

void setup() {
  Serial.begin(9600);
}

void loop() {
  int tempValue = analogRead(tempPin);
  float temperature = (tempValue * 5.0 / 1024.0) * 100;
  Serial.print("Temperature: ");
  Serial.print(temperature);
  Serial.println("°C");
  delay(1000);
}
For DS18B20:
#include <OneWire.h>
#include <DallasTemperature.h>

const int tempPin = 2;
OneWire oneWire(tempPin);
DallasTemperature sensors(&oneWire);

void setup() {
  Serial.begin(9600);
  sensors.begin();
}

void loop() {
  sensors.requestTemperatures();
  float temperature = sensors.getTempCByIndex(0);
  Serial.print("Temperature: ");
  Serial.print(temperature);
  Serial.println("°C");
  delay(1000);
}
How it Works
1. The temperature sensor reads the temperature value.
2. The Arduino reads the sensor value and converts it to a temperature reading.
3. The temperature reading is printed to the serial monitor.

Applications
- Temperature monitoring in greenhouses
- Temperature control systems
- Weather stations

Do you have any specific questions about this project or would you like to explore more advanced temperature sensing applications?

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