Connecting a temperature [sensor](https://www.ampheo.com/c/sensors) to an [Arduino](https://www.ampheo.com/c/development-board-arduino) is a great beginner-friendly project. Here's a simple step-by-step guide using the most common sensor types:

**Option 1: LM35 (Analog Temperature Sensor)**
**What You Need:**
* [Arduino Uno](https://www.ampheo.com/product/a000046-25542493) (or compatible)
* [LM35](https://www.ampheo.com/search/LM35) temperature sensor
* Breadboard + jumper wires

**Wiring:**

**Arduino Code:**

cpp

const int sensorPin = A0;

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

void loop() {
  int rawValue = analogRead(sensorPin);
  float voltage = rawValue * (5.0 / 1023.0);
  float temperatureC = voltage * 100.0;  // 10 mV per °C
  Serial.print("Temperature: ");
  Serial.print(temperatureC);
  Serial.println(" °C");
  delay(1000);
}

**Option 2: DS18B20 (Digital 1-Wire Sensor)**
**What You Need:**
* Arduino
* [DS18B20](https://www.ampheo.com/product/ds18b20-26808200) sensor
* 4.7kΩ resistor (pull-up)
* Jumper wires

**Wiring:**

**Libraries Required:**
* OneWire
* DallasTemperature

Install them via: Sketch > Include Library > Manage Libraries...

**Arduino Code:**

cpp

#include <OneWire.h>
#include <DallasTemperature.h>

#define ONE_WIRE_BUS 2
OneWire oneWire(ONE_WIRE_BUS);
DallasTemperature sensors(&oneWire);

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

void loop() {
  sensors.requestTemperatures();
  float tempC = sensors.getTempCByIndex(0);
  Serial.print("Temperature: ");
  Serial.print(tempC);
  Serial.println(" °C");
  delay(1000);
}

**Other Temperature Sensors**