Dodajem treće i četvrto predavanje.

cetvrto_predavanje/temperatura_ds18b20/sketch.yaml

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+default_port: /dev/ttyUSB0
+default_fqbn: arduino:avr:uno

cetvrto_predavanje/temperatura_ds18b20/temperatura_ds18b20.ino

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+//https://randomnerdtutorials.com/guide-for-ds18b20-temperature-sensor-with-arduino/
+
+#include <OneWire.h>
+#include <DallasTemperature.h>
+
+// Data wire is conntec to the Arduino digital pin 4
+#define ONE_WIRE_BUS 4
+
+// Setup a oneWire instance to communicate with any OneWire devices
+OneWire oneWire(ONE_WIRE_BUS);
+
+// Pass our oneWire reference to Dallas Temperature sensor 
+DallasTemperature sensors(&oneWire);
+
+void setup(void)
+{
+	// Start serial communication for debugging purposes
+  	Serial.begin(9600);
+  	// Start up the library
+  	sensors.begin();
+}
+
+void loop(void){ 
+	// Call sensors.requestTemperatures() to issue a global temperature and Requests to all devices on the bus
+  	sensors.requestTemperatures(); 
+  	
+  	Serial.print("Celsius temperature: ");
+  	// Why "byIndex"? You can have more than one IC on the same bus. 0 refers to the first IC on the wire
+  	Serial.println(sensors.getTempCByIndex(0)); 
+  	delay(1000);
+}