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NTC Thermistor Digital/Analog Temperature Module (KY-028)

SKU: R5B3WFQ7IQ
★★★★ ★ ★
4.5 (68 reviews)
The KY-028 Digital Temperature Module is a compact temperature sensing module designed to detect ambient temperature using a high-sensitivity NTC thermistor and an LM393 voltage comparator. The module provides both analog and digital outputs, allowing users to monitor continuous temperature changes or trigger events when a preset temperature threshold is reached. The onboard potentiometer enables easy adjustment of the digital...
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The KY-028 Digital Temperature Module is a compact temperature sensing module designed to detect ambient temperature using a high-sensitivity NTC thermistor and an LM393 voltage comparator. The module provides both analog and digital outputs, allowing users to monitor continuous temperature changes or trigger events when a preset temperature threshold is reached.

The onboard potentiometer enables easy adjustment of the digital output trigger point, making the module suitable for temperature monitoring, overheating protection, environmental sensing, smart home systems, industrial automation, and educational electronics projects.

The KY-028 is fully compatible with Arduino, ESP32, STM32, Raspberry Pi Pico, and other microcontroller platforms, making it an excellent choice for beginners and professionals alike.

Key Features

  • High-sensitivity NTC thermistor
  • Digital and analog temperature outputs
  • Built-in LM393 comparator
  • Adjustable temperature trigger threshold
  • Real-time temperature monitoring
  • Fast response to temperature changes
  • Compact PCB module design
  • Low power consumption
  • Onboard power and status indicator LEDs
  • Easy microcontroller interfacing
  • Stable and reliable performance
  • Compatible with Arduino, ESP32, STM32, and Raspberry Pi
  • Suitable for automation and environmental monitoring
  • Ideal for educational and DIY electronics projects

Shipping & Returns

Orders placed before 3 PM IST will be shipped on the same day (excluding Sundays and Public holidays) through our shipping partners. In rare cases, the pickup may get delayed during Public holidays / Bandh / Environmental disturbances.

Specifications

Specifications:

Module Type: Temperature Sensor Module
Model: KY-028
Sensor Type: NTC Thermistor
Comparator IC: LM393
Operating Voltage: 3.3V to 5V DC
Operating Current: Less Than 15mA
Output Type: Analog Output (AO) and Digital Output (DO)
Digital Output Logic: TTL Compatible
Temperature Detection Range: Approximately -55°C to +125°C (Thermistor Dependent)
Recommended Measurement Range: -20°C to +80°C
Sensitivity Adjustment: Onboard Potentiometer
Detection Method: Resistance-Based Temperature Measurement
Response Time: Fast Response
Indicator LEDs: Power LED and Trigger LED
Interface Pins: VCC, GND, AO, DO
Operating Temperature: -20°C to +70°C
Storage Temperature: -40°C to +85°C
PCB Dimensions: Approximately 32mm × 14mm
Mounting Type: Through-Hole Module
Compatibility: Arduino, ESP32, STM32, Raspberry Pi Pico, AVR, PIC

Additional Resources

Temperature Module.PDF

FAQ

1. What is the KY-028 Digital Temperature Module used for?

The KY-028 is used to monitor ambient temperature and detect temperature changes in automation, environmental monitoring, and electronics projects.

2. What outputs does the KY-028 provide?

The module provides an analog output for continuous temperature measurement and a digital output that changes state when the preset temperature threshold is reached.

3. What is the purpose of the onboard potentiometer?

The potentiometer allows users to adjust the temperature threshold at which the digital output is triggered.

4. Can the KY-028 be used with Arduino and ESP32 boards?

Yes, the module is fully compatible with Arduino, ESP32, STM32, Raspberry Pi Pico, and other microcontrollers.

5. What is the difference between the analog and digital outputs?

The analog output provides a voltage proportional to the detected temperature, while the digital output provides a HIGH or LOW signal when the measured temperature crosses the configured threshold.

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