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The DS18B20 is a digital temperature sensor that provides accurate temperature readings using a 1-Wire communication interface. It is commonly used with boards like Arduino Uno R3, Arduino Nano, and ESP32 Development Board.
The DS18B20 Digital Temperature Sensor is a high-precision temperature sensor capable of measuring temperatures in a wide range. It communicates with microcontrollers through a single data wire (1-Wire protocol), which allows multiple sensors to be connected on the same data line.
Many versions of the DS18B20 come in a waterproof stainless steel probe, making them suitable for harsh environments. The sensor provides digital output, eliminating the need for analog-to-digital conversion.
It is widely used in weather monitoring systems, industrial temperature monitoring, HVAC systems, aquariums, and IoT temperature sensing projects.
Key Features
High-accuracy digital temperature sensing
Uses 1-Wire communication protocol
Multiple sensors can share one data pin
Waterproof probe available
Wide temperature measurement range
Compatible with Arduino and other microcontrollers
Technical Specifications
Parameter
Value
Operating Voltage
3.0V – 5.5V
Temperature Range
-55°C to +125°C
Accuracy
±0.5°C
Communication
1-Wire Digital
Resolution
9 to 12-bit programmable
Pin Configuration
Wire
Description
Red
VCC (Power Supply)
Yellow / White
Data
Black
Ground
Product Dimensions (Probe)
Parameter
Value
Probe Length
50 mm (5.0 cm)
Probe Diameter
6 mm (0.6 cm)
Cable Length
~1 meter
Weight
~10 g (0.010 kg)
What’s in the Box
1 × DS18B20 Digital Temperature Sensor Probe
Weight
0.010 kg
Dimensions
5 × 0.6 × 100 cm
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