OneWire DallasTemperature Library

The OneWire DallasTemperature Library is a library that allows Arduino programmers to easily interface with Dallas Semiconductor/Maxim Integrated's 1-Wire temperature sensors. The library is included in another library, the OneWire library, making it easy to use with a variety of 1-Wire sensors.

Features

The OneWire DallasTemperature Library provides many features that make interfacing with 1-Wire temperature sensors easy and convenient. Some of the key features include:

• Support for multiple DS18B20 temperature sensors on a single 1-Wire bus
• Temperature conversion and retrieval functions
• Configurable resolution for temperature readings
• Support for temperature alarms
• Non-blocking temperature readings
• Example sketches to get started quickly

Installation

The OneWire DallasTemperature Library is included in the OneWire library, making it easy to install and use. To install the OneWire library, follow these steps:

1. Open the Arduino IDE
2. Navigate to Sketch -> Include Library -> Manage Libraries...
3. Search for "OneWire" and install the library
4. Once the library is installed, you can use the OneWire DallasTemperature Library in your sketch by including the following line at the beginning of your sketch:

#include <OneWire.h>
#include <DallasTemperature.h>

Usage

The OneWire DallasTemperature Library provides a simple interface for interfacing with DS18B20 temperature sensors. Here is an example sketch that reads the temperature from a single DS18B20 sensor:

#include <OneWire.h>
#include <DallasTemperature.h>

OneWire oneWire(2); // Connect the 1-Wire bus to pin 2
DallasTemperature sensors(&oneWire);

void setup() {
  Serial.begin(9600);
  sensors.begin();
}

void loop() {
  sensors.requestTemperatures(); // Send the command to get temperatures
  float temperature = sensors.getTempCByIndex(0);
  Serial.print("Temperature: ");
  Serial.print(temperature);
  Serial.println(" degrees C");
  delay(1000);
}

In this example, we first create an instance of the OneWire library to interface with the 1-Wire bus. We then create an instance of the DallasTemperature library to interface with the DS18B20 sensor. In the setup() function, we initialize the DallasTemperature library. In the loop() function, we first request the temperature readings, then retrieve and print the temperature in degrees Celsius.

Conclusion

The OneWire DallasTemperature Library makes it easy for Arduino programmers to interface with DS18B20 temperature sensors. With its support for multiple sensors, configurable resolution, and non-blocking temperature readings, it provides a flexible and powerful interface for temperature sensing. The library's rich feature set and easy-to-use interface make it a valuable tool for any project requiring temperature sensing.