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led_kood.txt

+/*
+ * IoT Buzzer example
+ *
+ * This example subscribe to the "buzzer" topic. When a message received, then it
+ * will make a sound
+ *
+ * Created 02 Febrary 2018 by Heiko Pikner
+ */
+ 
+// Includes global variables and librarys that the Buzzer uses
+#include <Arduino.h>
+#include <ittiot.h>
+#include <Adafruit_NeoPixel.h>
+#include <string.h>
+ 
+//Pin definition for the buzzer (GPIO15)
+#define BUZZER_PIN D8
+#define MODULE_TOPIC "ESP06/pir"
+#define MODULE_TOPIC_LED "LEDslider"
+#define WIFI_NAME "TalTech"
+#define WIFI_PASSWORD ""
+#define DHT_TOPIC "ESP06"
+ 
+//Stating, to which PIN the RGB LED has been connected
+#define PIN            D2
+bool OnState = false;
+int sliderVal = 10;
+ 
+// When we setup the NeoPixel library, we tell it how many pixels, and which pin to use to send signals.
+// Note that for older NeoPixel strips you might need to change the third parameter--see the strandtest
+// example for more information on possible values.
+Adafruit_NeoPixel pixels = Adafruit_NeoPixel(1, PIN, NEO_GRB + NEO_KHZ800);
+ 
+// Splitting string into smaller parts, so that the colour code can be set to the RGB LED
+// https://stackoverflow.com/questions/9072320/split-string-into-string-array
+String getValue(String data, char separator, int index)
+{
+  int found = 0;
+  int strIndex[] = {0, -1};
+  int maxIndex = data.length()-1;
+ 
+  for(int i=0; i<=maxIndex && found<=index; i++)
+  {
+    if(data.charAt(i)==separator || i==maxIndex)
+    {
+        found++;
+        strIndex[0] = strIndex[1]+1;
+        strIndex[1] = (i == maxIndex) ? i+1 : i;
+    }
+  }
+  return found>index ? data.substring(strIndex[0], strIndex[1]) : "";
+}
+ 
+// Changes the RGB LED color and send this info to the computer over COM port
+// mosquitto_pub -u test -P test -t "ITT/IOT/3/rgb" -m "51;255;153"
+void iot_received(String topic, String msg)
+{
+  Serial.print("MSG FROM USER callback, topic: ");
+  Serial.print(topic);
+  Serial.print(" payload: ");
+  Serial.println(msg);
+ 
+  if(topic == MODULE_TOPIC)
+  {
+    if(msg == "1"){
+      OnState = true;
+      Serial.println("true.");
+    }
+    else{
+      OnState = false;
+      Serial.println("false.");
+    }
+  }
+  if(topic == MODULE_TOPIC_LED){
+    //char *msg2;
+    //msg2 = msg;
+    //sliderVal = atoi(msg2);
+  }
+}
+ 
+// Subscrining to a MQTT topic, to get the RGB color code for the RGB LED
+void iot_connected()
+{
+  Serial.println("MQTT connected callback");
+  iot.subscribe(MODULE_TOPIC);
+  iot.log("IoT NeoPixel example!");
+}
+ 
+// Setting up some parameters for the ESP microcontroller
+void setup()
+{
+  Serial.begin(115200); // setting up serial connection parameter
+  Serial.println("Booting");
+ 
+  iot.setConfig("wname", WIFI_NAME);
+  iot.setConfig("wpass", WIFI_PASSWORD);
+  iot.setConfig("msrv", "193.40.245.72");
+  iot.setConfig("mport", "1883");
+  iot.setConfig("muser", "test");
+  iot.setConfig("mpass", "test");
+  iot.printConfig(); // print json config to serial
+  iot.setup();
+ 
+  pixels.begin(); // This initializes the NeoPixel library.
+}
+ 
+//Main code, which runs in loop
+void loop()
+{
+  iot.handle(); // Calls iot.handle out
+  if(OnState == true){
+    pixels.setPixelColor(0, 255, 255, 255);
+    pixels.show();
+    Serial.println("show.");
+  }
+  else{
+    pixels.setPixelColor(0, 0, 0, 0);
+    pixels.show();
+    Serial.println("clear.");
+  }
+  delay(200); // Delay of 200 ms
+}
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