added wk 5 demo codes

lab5/lab5_demo_interrupt/lab5_demo_interrupt.ino

+#define BUTTON_PIN              2
+#define STATUS_LED_PIN          7
+
+const uint8_t debounceDelay = 100;
+
+volatile bool robotEnabled = true;
+
+void setup() 
+{
+  /* Surunupp */
+  pinMode(BUTTON_PIN, INPUT);
+
+  /* Roboti seisundi LED */
+  pinMode(STATUS_LED_PIN, OUTPUT);
+
+  /* Konfigureerime katkestuse nupu langevale äärele */
+  attachInterrupt(digitalPinToInterrupt(BUTTON_PIN), RobotPower, FALLING);
+}
+
+void loop() 
+{
+  digitalWrite(STATUS_LED_PIN, robotEnabled);
+}
+
+
+void RobotPower(void)
+{
+  static uint32_t lastDebounceTime = 0;
+
+  /* stabiliseerimismehhanism, et nupu häiringuid vähendada */
+  if ((millis() - lastDebounceTime) > debounceDelay) 
+  {
+    lastDebounceTime = millis();
+    robotEnabled = !robotEnabled;
+  }
+}
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lab5/lab5_demo_ir_capture/lab5_demo_ir_capture.ino

+/* IRRemote teek vajab dekodeerimise makrot enne teegi lisamist */
+#define DECODE_SAMSUNG
+
+#include <IRremote.hpp>
+
+#define LEFT_LED_PIN       7
+#define IR_RECEIVE_PIN    10
+
+void setup()
+{
+  Serial.begin(9600);
+
+  /* IR seadistamine koos seisundi LEDi määramisega */
+  IrReceiver.begin(IR_RECEIVE_PIN, ENABLE_LED_FEEDBACK, LEFT_LED_PIN);
+}
+
+void loop()
+{
+  if (IrReceiver.decode()) 
+  {
+    /* Alustame järgmise paketi kuulamist enne töötlust (reageerib paremini) */
+    IrReceiver.resume(); 
+
+    /* Kontrollime kas samsungi IR pakett */
+    if (IrReceiver.decodedIRData.protocol == SAMSUNG) 
+    {
+      /* Väljastame dekodeeritud paketi ja saadame üle jadaühenduse */
+      IrReceiver.printIRResultShort(&Serial);
+    }
+  }
+}
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