Contents
What does DS18B20 mean?
The DS18B20 is one type of temperature sensor and it supplies 9-bit to 12-bit readings of temperature. These values show the temperature of a particular device. The communication of this sensor can be done through a one-wire bus protocol which uses one data line to communicate with an inner microprocessor.
What type of temperature sensor is DS18B20?
The core functionality of the DS18B20 is its direct-to- digital temperature sensor. The resolution of the tempera- ture sensor is user-configurable to 9, 10, 11, or 12 bits, corresponding to increments of 0.5°C, 0.25°C, 0.125°C, and 0.0625°C, respectively. The default resolution at power-up is 12-bit.
What type is DS18B20?
1-Wire interface Temperature sensor
DS18B20 is 1-Wire interface Temperature sensor manufactured by Dallas Semiconductor Corp. The unique 1-Wire® Interface requires only one digital pin for two way communication with a microcontroller.
Can you put a thermistor in water?
An NTC thermistor is designed to measure temperature changes in different applications, but it is truly ideal for working in liquids (such as water). This is a result of long-term reliability and stability.
Where can I find the DS18B20 datasheet?
Also the DS18B20 datasheet can be found at the bottom of the page The DS18B20 is a 1-wire programmable Temperature sensor from maxim integrated. It is widely used to measure temperature in hard environments like in chemical solutions, mines or soil etc.
Why is DS18B20 used in industrial projects?
It follows 1 wire protocol which has revolutionized the digital world. Because of its 1 wire protocol, you can control multiple sensors from a single pin of Microcontroller. DS18B20 is normally used in industrial projects where high accuracy is necessary.
What is the working principle of the DS18B20 temperature sensor?
The working principle of this DS18B20 temperature sensor is like a temperature sensor. The resolution of this sensor ranges from 9-bits to 12-bits. But the default resolution which is used to power-up is 12-bit. This sensor gets power within a low-power inactive condition.
Why do we use pull up MOSFET on DS18B20?
To limit current in save the value and good working of DS18B20 it is necessary to use pull up mosfet. As it is used only for specific temperature value there we use an external power supply. It works on the principle of direct conversion of temperature into a digital value.
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