maxmclau / dallas

Particle Photon library port of Dallas Temperature Sensor library (DS18B20, DS18S20, DS1822, DS1820

Particle Dallas Temperature

This library is a port of the Arduino Dallas Temperature Sensor library. Some includes have been fixed, but the libary is otherwise untouched. Original repository by Miles Burton: Arduino-Temperature-Control-Library. Forked from Tom Deboer: SparkCoreDallasTemperature.

Supported Sensors

This library supports the following devices:

• DS18B20
• DS18S20 - Please note there appears to be an issue with this series.
• DS1822
• DS1820

You will need a pull-up resistor of about 5 KOhm between the 1-Wire data line and your 5V power. If you are using the DS18B20, ground pins 1 and 3. The centre pin is the data line '1-wire'.

Libraries

• OneWireSpark

Example Code

// Init Dallas on pin digital pin 3
DallasTemperature dallas(new OneWire(D3));

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

void loop(){
	dallas.requestTemperatures();
    float celsius = dallas.getTempCByIndex( 0 );
    Serial.print("Temperature: "); Serial.println(celsius) ;
}