DS18B20 is a programmable single-wire temperature sensor. Its main applications include temperature measurement in harsh environments such as mines and soil. The temperature sensor can measure a wide temperature range from 55°C to +125° with an accuracy of ±5°C.
“This is a very good choice for measuring temperature in multiple locations without affecting the digital pins of the microcontroller.
The Working principle of this DS18B20 temperature sensor is similar to that of a traditional temperature sensor. The sensor usually consumes power in a low-power standby mode. In this way, programming facilitates temperature measurement and conversion. The received temperature information is saved in a 2-byte format. “
Features of Temperature Sensor DS18B2
- “It has a programmable alarm feature
- Programmable and digital temperature sensor
- The communication is done with the 1-Wire method
- The sensor can be power-driven from the data line”
Specifcation
- “conversion time is actually less than 750 ms
- Power Supply ranges from 3V to 5.5V
- Current Consumption: 1mA
- Temperature Range: -55 to 125°C
- Accuracy: ±0.5°C
- Resolution = 9 to 12 bit”
Uses and Applications
- “Measures the liquid temperature
- In thermostatic Controls
- Industrial Systems
- In consumer Products
- In Thermometers
- Thermally Sensitive Systems
- In HVAC systems”
Pin Description
- “Following is the pin Configuration for the Sensor
- Pin1 (Ground): This pin connects to the GND terminal
Pin2 (Vcc): This pin provides the power to the sensor (i.e Vcc voltage)
Pin3 (Data): This data pin supplies the temperature value”
