DS18B20 Digital Temperature Sensor

The DS18B20 is a high-accuracy digital temperature sensor that communicates using the 1-Wire protocol, meaning multiple sensors can share a single data line. It is widely used in IoT projects, weather monitoring, industrial systems, and embedded applications.

It comes in two common versions:

• 🔹 TO-92 package (3-pin)

• 🔹 Waterproof probe version (sealed metal tube)

🔹 Key Features

• Digital output (no ADC needed)

• 1-Wire communication (only one data pin required)

• Unique 64-bit serial code (multiple sensors on one wire)

• High accuracy

• Available in waterproof version

🔹 Technical Specifications

• Temperature Range: -55°C to +125°C

• Accuracy: ±0.5°C (from -10°C to +85°C)

• Resolution: 9–12 bit (configurable)

• Operating Voltage: 3.0V – 5.5V

• Communication: 1-Wire