Hallo, katanya ini video kelanjutan dari part 1 yang berjudul Elektronika Dasar. Namun terlihat sangat kalau video pertama itu receh banget, di mana intro yang sangat meng-halibiru waktu.

Saya harap di video ke dua ini bisa memberi edukasi, meskipun 1% ..

Full Source

#include "SoftwareSerial.h"
#include "DFRobotDFPlayerMini.h"

//mp3 player declarate project
SoftwareSerial mySoftwareSerial(10, 11); // RX, TX
DFRobotDFPlayerMini myDFPlayer;
String getVoice(int val);

//analog declarate project
int getBuffer[15];
int l, analGet, anal2;
int count_occur(int a[], char map[], int num_elements, int start);


void setup() {
  mySoftwareSerial.begin(9600);
  Serial.begin(9600);

  if (!myDFPlayer.begin(mySoftwareSerial)) {  //Use softwareSerial to communicate with mp3.
    Serial.println("Gagal initialisasi module");
  }
  myDFPlayer.volume(25);
 
  Serial.print("Setup = ");
  anal2 = analogRead(A2);
  Serial.println(anal2);
  Serial.print("Normalisasi = ");
  anal2 = anal2 - 512;
  Serial.println(anal2);
}

void loop() {
  int value = analogRead(A1)-anal2;
  if (value > 500 ){
    l++;
    
    if(l == 15){
      char map[20] = {0};
      int num_occ;
      
      for (int position = 0; position < 20; position++){
          if (map[position] == 0) {
              num_occ = count_occur(getBuffer, map, 20, position);
              if (num_occ > 4){
                  analGet = getBuffer[position];
              }
          }
      }

      Serial.print("Found {");
      Serial.print(analGet);
      Serial.println("} ");
      Serial.println(getVoice(analGet));
      
    }else if(l > 15 ){
      //Serial.print(value);
      Serial.println("Stop read ...");
    }else{
      getBuffer[l] = value;
      Serial.print(value);
      Serial.println(" Read buffer ....");
    }
  }else{
    l = 0;
    analGet = 0;
  }
        
}

int count_occur(int a[], char map[], int num_elements, int start) {
    
    int i, count = 0, value = a[start];
    for (i = start; i < num_elements; i++){
        if (a[i] == value){
            map[i] = 1;
            ++count;
        }
    }
    return (count);
}

String getVoice(int val){
  String outs = "Kosong";
  if(811 <= val && 815 >= val){
    myDFPlayer.play(1);
    outs = "A";
  }else if(817 <= val && 821 >= val){
    myDFPlayer.play(2);
    outs = "B";
  }else if(824 <= val && 828 >= val){
    myDFPlayer.play(3);
    outs = "C";
  }else if(831 <= val && 835 >= val){
    myDFPlayer.play(4);
    outs = "D";
  }else if(838 <= val && 841 >= val){
    myDFPlayer.play(5);
    outs = "E";
  }else if(534 <= val && 537 >= val){
    outs = "F";
  }else if(547 <= val && 549 >= val){
    outs = "G";
  }else if(560 <= val && 564 >= val){
    outs = "H";
  }else if(574 <= val && 577 >= val){
    outs = "I";
  }else if(590 <= val && 593 >= val){
    outs = "J";
  }else if(608 <= val && 610 >= val){
    outs = "K";
  }else if(622 <= val && 625 >= val){
    outs = "L";
  }

  return outs;
}