NTC Thermistor Temperature Sensor Module (KY-028)

The KY-028 is a temperature sensor module that uses an NTC (Negative Temperature Coefficient) thermistor to detect temperature changes. As the temperature increases, the resistance of the thermistor decreases, allowing for accurate temperature measurements. The module features both analog and digital outputs, making it highly versatile and compatible with microcontrollers like Arduino, Raspberry Pi, and others.

The KY-028 consists of an NTC thermistor, a comparator (LM393), a potentiometer for sensitivity adjustment, and indicator LEDs. The analog output provides a continuous voltage signal corresponding to temperature, while the digital output triggers HIGH or LOW based on a predefined threshold set via the onboard potentiometer.

Key Features:

Uses NTC thermistor for temperature sensing
Analog and digital outputs
Adjustable sensitivity via potentiometer
Operating Voltage: 3.3V to 5V
Compact and easy to interface with Arduino

Applications:

Environmental temperature monitoring
DIY weather stations
Home automation systems
Overheat detection in devices
Educational electronics projects