NTC Thermistor Temperature Sensor Module 3 Pin
🌡️ NTC Thermistor Temperature Sensor Module – 3 Pin
Analog Temperature Detection for Arduino, ESP32, and More
The NTC Thermistor Sensor Module is a low-cost, analog temperature sensing module based on a Negative Temperature Coefficient (NTC) thermistor. As the temperature increases, the resistance of the sensor decreases, allowing you to read changing temperature values using any microcontroller's analog input.
⚙️ Technical Specifications
| Parameter | Specification |
|---|---|
| Sensor Type | NTC Thermistor (10KΩ @ 25°C typical) |
| Operating Voltage | 3.3V to 5V |
| Output | Analog Voltage (0–5V depending on temp) |
| Interface | 3-pin (VCC, GND, OUT) |
| Temperature Range | -55°C to +125°C (recommended: -40°C to +100°C) |
| Response Time | Fast (a few seconds) |
| Mounting Hole | Yes |
✅ Features
🌡️ Accurate analog temperature readings using NTC thermistor
🔌 Easy to connect via 3-pin header (VCC, GND, OUT)
📊 Output decreases as temperature increases
🧠 Compatible with Arduino, ESP32, STM32, Raspberry Pi (via ADC)
🛠️ Ideal for thermostats, climate control, or overheat protection systems
🧪 Arduino Wiring Example
| Module Pin | Arduino Pin |
|---|---|
| VCC | 5V |
| GND | GND |
| OUT | A0 |
Sample Arduino Code:
CopyEditint sensorPin = A0; float tempReading; void loop() { int value = analogRead(sensorPin); float voltage = value * (5.0 / 1023.0); Serial.print("Analog Output: "); Serial.println(voltage); delay(500); }
For more accurate temperature readings, use a calibration table or convert resistance using the Steinhart-Hart equation.
📱 Applications
Temperature alarms and monitoring
Fan control systems
Overheating protection in electronics
DIY smart home climate projects