The DS18B20 Digital Temperature Sensor is a highly accurate and reliable temperature measurement device designed for Arduino, ESP32, ESP8266, Raspberry Pi, STM32, industrial automation, IoT systems, HVAC equipment, environmental monitoring, laboratory instruments, and embedded electronics projects. Using the popular 1-Wire communication protocol, the DS18B20 allows multiple sensors to operate on a single data line, simplifying wiring and reducing hardware complexity.

The sensor provides programmable temperature measurement resolutions from 9-bit to 12-bit, delivering precise temperature readings across a wide operating range of -55°C to +125°C. With an accuracy of ±0.5°C between -10°C and +85°C, it is ideal for applications requiring dependable and stable temperature monitoring.

One of the key advantages of the DS18B20 is its unique 64-bit serial identification code, allowing multiple sensors to be connected to the same communication bus while maintaining individual identification. The sensor also supports parasite power mode, enabling operation through the data line without requiring a separate power supply.

Features:

• High-precision digital temperature sensor

• Original DS18B20 chipset

• 1-Wire communication protocol

• Temperature measurement from -55°C to +125°C

• High accuracy of ±0.5°C

• Programmable resolution from 9-bit to 12-bit

• Unique 64-bit serial number for each sensor

• Supports multiple sensors on a single bus

• Parasite power operation supported

• Fast digital temperature acquisition

• Excellent noise immunity

• Low power consumption

• Easy microcontroller integration

• Long-distance communication capability

• Suitable for industrial and commercial applications

• Reliable and stable temperature readings

BDTronics supplies premium-quality sensors, development boards, electronic modules, and automation components for students, makers, engineers, and industrial professionals. The DS18B20 Temperature Sensor is carefully selected for its exceptional accuracy, reliability, and ease of integration into temperature monitoring systems.

Specifications:

• Chipset: DS18B20

• Communication Protocol: 1-Wire

• Resolution: Programmable 9-bit to 12-bit

• Temperature Range: -55°C to +125°C

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

• Operating Voltage: 3.0V – 5.5V DC

• Unique Serial Code: 64-bit Factory-Lasered Address

• Power Mode: External Power or Parasite Power

• Data Interface: Single Data Line

• Output Type: Digital Temperature Data

• Low Power Consumption: Yes

• Multi-Sensor Support: Yes

How It Works:

• The DS18B20 measures ambient temperature using an internal digital sensing element.

• Temperature data is converted directly into digital format.

• Communication occurs through a single-wire interface.

• Each sensor transmits data using its unique 64-bit address.

• Multiple sensors can share the same communication line.

• Temperature values are read directly by the microcontroller without requiring analog conversion.

How to Use:

• Connect VCC to 3V–5.5V power supply (or use parasite mode).

• Connect GND to system ground.

• Connect DATA pin to a microcontroller digital I/O pin.

• Use a 4.7kΩ pull-up resistor between DATA and VCC.

• Install the DS18B20 library in Arduino IDE or your preferred platform.

• Read temperature data through the 1-Wire communication protocol.

• Display or process the temperature data as required.

Applications:

• HVAC systems

• Smart home automation

• Industrial process monitoring

• Environmental monitoring

• Weather stations

• IoT temperature logging

• Cold storage monitoring

• Refrigeration systems

• Greenhouse automation

• Medical equipment

• Laboratory instruments

• Battery temperature monitoring

• Server room monitoring

• Water temperature measurement

• Embedded system development

• Robotics projects

• Arduino and Raspberry Pi projects

• Building management systems

Advantages:

• High measurement accuracy

• Wide temperature measurement range

• Simple one-wire communication

• Multiple sensors on one bus

• Unique sensor identification

• Supports parasite power mode

• Excellent reliability

• Industrial-grade performance

• Easy software integration

• Long cable distance support

Package Includes:

• 1 × DS18B20 Digital Temperature Sensor

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