Thermistor Module (Temperature Sensor) KY-013 for Arduino

The analog thermistor module KY-013 is designed to determine the ambient air temperature. The module board consists of: SMD resistor with a nominal value of 10 kOhm and a temperature sensor KY-013. This module can be used in air cooling system, home alarm system and other projects.

The KY-013 thermistor and resistor are assembled according to the resistor voltage divider circuit. When the temperature changes, the resistance of the temperature sensor changes, which leads to changes in the voltage at the data output. After that, the controller measures the received voltage and, using the logarithmic conversion formula, converts the voltage into temperature.

Also with the help of the module it is possible to determine the surface temperature. To do this, it is necessary to mechanically press the sensor to the surface using fasteners, through the connectors on the board, and apply heat-conducting paste between the surface and the thermistor. If there is no paste, glue the sensor.

There are three outputs on the module for connecting the sensor to the Arduino board. The VCC pin is used to supply power to the module board, respectively, the GND output is ground. The S pin is used to send sensor data to the microcontroller and is connected to the analog outputs of the Arduino Uno board.

Module Specifications:

Model KY-013
Supply voltage, V 3.3 ... 5
Operating temperature range, °C -55 ... +125
Measurement accuracy, °C ±0.5

Scheme for connecting the sensor to the Arduino Uno: