KY-013 NTC Thermistor Analog Temperature Sensor Module

Description

KY-013 NTC Thermistor Analog Module

The KY-013  temperature sensor is a temperature sensing module that incorporates an NTC (Negative Temperature Coefficient) thermistor and a 10kΩ resistor, mounted on a compact breakout board. In particular, NTC thermistors exhibit a negative temperature coefficient, meaning their resistance decreases as the temperature rises and increases as the temperature falls.

Thermistors are made from semiconductor materials that are sintered to allow significant changes in resistance in response to small variations in temperature. So, they are highly sensitive and ideal for precise temperature measurements. As a result, this behavior makes thermistors ideal for precise temperature measurements. Furthermore, the KY-013 module measures ambient temperature by detecting the resistance of the thermistor, which varies with temperature.

 

How KY-013 temperature sensor Works

The sensor passes a small DC current through the thermistor, measuring the resulting voltage drop. The system then uses this voltage to calculate the temperature. Essentially, the thermistor acts as a temperature-sensitive resistor, making it a simple but effective way to measure temperature in a variety of applications.

The Arduino reads the voltage from the KY-013 temperature sensor via an analog input pin and converts it into a temperature value (in Celsius) using a straightforward programming approach. Consequently, this allows for accurate temperature measurement in various projects.

 

Key Features of KY-013 temperature sensor

• Operating Voltage: 5V
• Temperature Range: -55°C to +125°C (-67°F to 257°F)
• Measurement Accuracy: ±0.5°C
• Compact Size: 3 x 1.5 x 0.6 cm
• Weight: 2g

 

Pinout and Connections

The KY-013 temperature sensor has a 3-pin header for connections:

1. GND (Ground): Connect this pin to the ground (GND) of your circuit.
2. VCC (5V): This is the power supply pin, which should be connected to 5V.
3. Signal Output (S): This pin outputs an analog signal corresponding to the temperature. Connect it to an analog input pin on a microcontroller (e.g., Arduino).

Usage

The KY-013 sensor is ideal for various applications, including environmental monitoring and HVAC systems. Additionally, it reads the thermistor’s analog output and converts it into a temperature value in Celsius. The module is compatible with any microcontroller with analog input, such as Arduino, allowing easy integration into projects.

 

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