Home > Components > Sensors > NTC Temperature Sensor

NTC Temperature Sensor

A basic 3-pin NTC thermistor module for measuring ambient temperature.

Component Preview

NTC Module

This simple module uses an NTC (Negative Temperature Coefficient) thermistor. Its resistance decreases as the temperature rises. When connected as a voltage divider, it provides an analog voltage output that can be read by a microcontroller to determine the temperature.

SensorsTemperatureAnalog

Overview

Unlike more complex modules with onboard comparators, this is a straightforward analog sensor. It's perfect for simple climate monitoring applications where you only need to read the ambient temperature using an analog pin (ADC).

Pin Reference

Pin	Type	Description
S	analog	Signal Output. Outputs an analog voltage proportional to temperature.
(Center)	power	Power Supply. Connect to Arduino 5V.
-	power	Ground. Connect to Arduino GND.

Configurable Attributes

Attribute	Type	Default	Description
temperature	number	25	The simulated environmental temperature in Celsius.

Wiring Diagram (Arduino Uno)

1. Connect S to Arduino A0.
2. Connect the center pin to Arduino 5V.
3. Connect - to Arduino GND.

Example Arduino Code

const int analogPin = A0;

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

void loop() {
  int sensorValue = analogRead(analogPin);
  Serial.print("Analog Reading: ");
  Serial.println(sensorValue);
  delay(500);
}

Simulation Notes

• In the simulator, right-click the sensor to open its context menu and adjust the simulated temperature.

---

← Previous: MQ-2 Gas Sensor

Next: NTC Thermistor Module →