DS18B20 Digital Temperature Sensor (TO-92 Package) – 1-Wire Digital Precision for Embedded and IoT Projects

DS18B20 Digital Temperature Sensor (TO-92 Package) – 1-Wire Digital Precision for Embedded and IoT Projects

The DS18B20 is a highly popular digital temperature sensor known for its precision, reliability, and simple 1-Wire communication interface. Unlike analog sensors like LM35, the DS18B20 provides a digital output directly in degrees Celsius, requiring no analog-to-digital conversion.

Packaged in a compact TO-92 form factor, it’s perfect for breadboarding, PCB mounting, or direct sensor integration. The DS18B20 supports multiple devices on a single data line, making it ideal for systems needing multiple temperature readings from different locations.

With a measurement range from -55°C to +125°C and an accuracy of ±0.5°C in the -10°C to +85°C range, it’s widely used in Arduino, ESP32, Raspberry Pi, and industrial automation projects.

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✅ Key Features:

• 📏 Package: TO-92 (transistor-like package)

• 📡 Interface: 1-Wire digital communication (requires only one data pin)

• 🔌 Operating Voltage: 3.0V – 5.5V

• 🌡️ Temperature Range: -55°C to +125°C

• 🎯 Accuracy: ±0.5°C (in -10°C to +85°C range)

• 📐 Resolution: Programmable from 9-bit to 12-bit

• 🔄 Multiple Sensors: Connect multiple DS18B20 sensors on the same data line

• 🔧 Unique 64-bit Serial Code: Allows addressing multiple sensors individually

• 🧰 Compatible With: Arduino, ESP8266, ESP32, Raspberry Pi, STM32, etc.

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🧰 Applications:

• Arduino and microcontroller temperature monitoring

• HVAC and environmental systems

• Smart home automation

• Weather stations and data logging

• Industrial control systems

• IoT devices requiring accurate temperature readings

• Food storage and refrigeration monitoring

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🔗 Why Choose DS18B20?

The DS18B20 offers high accuracy, digital output, and the flexibility of the 1-Wire protocol, making it ideal for both beginners and professionals who need reliable, precise temperature readings without the hassle of analog interfacing.

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📦 Package Includes:

• 1 x DS18B20 Digital Temperature Sensor (TO-92 Package)

Note: Requires a 4.7kΩ pull-up resistor on the data line for proper communication.

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