LM35 Temperature Sensor

LM35 Temperature Sensor

Enhance your project with this high-quality LM35 Temperature Sensor. Suitable for makers, hobbyists, students, engineers and repair technicians. Designed for reliable performance in electronics, Arduino, IoT, automation and robotics applications. Easy to integrate into new or existing projects and ideal for educational, commercial or personal use.

The OKY3066-2 is a ready-to-use LM35-based analog temperature sensor module designed for microcontroller projects such as Arduino, ESP32, and ESP8266 systems.

It uses the LM35 precision temperature sensor IC, which produces an analog voltage directly proportional to temperature, making it very easy to read with an ADC input.

Key Features

• Built around LM35 precision temperature IC
• Linear output: 10 mV per °C
• Analog voltage output (easy ADC reading)
• High accuracy and stable performance
• Low power consumption
• Easy plug-in module for DIY electronics

Technical Specifications (OKY3066-2)

• Operating Voltage: 4V — 30V DC
• Temperature Range: 0°C to 100°C (module version)
• Sensor Type: Analog (LM35)
• Output: Analog voltage
• Accuracy: ±0.5°C (typical)
• Sensitivity: 10 mV/°C
• Size: ~28 × 12 × 10 mm

Pin Description

• + (VCC) → Power supply (4—30V, typically 5V)
• — (GND) → Ground
• OUT → Analog temperature signal

How it works

The LM35 inside the module produces an output voltage that increases linearly with temperature:

• 0°C → 0.00V
• 25°C → 0.25V
• 100°C → 1.00V

The microcontroller reads this voltage through an analog pin and converts it into temperature using a simple formula.

Applications

• Weather monitoring systems
• Greenhouse temperature control
• Overheat protection circuits
• DIY Arduino projects
• Industrial temperature sensing
• Battery temperature monitoring

Summary

The OKY3066-2 LM35 module is a simple, accurate, and beginner-friendly temperature sensor that gives a clean analog output, making it ideal for learning and real-world monitoring projects.