ArduinoでDFPlayer Miniを使う：MP3の再生、SDカード、スピーカー

1#include <SoftwareSerial.h>
2#include <DFRobotDFPlayerMini.h>
3
4SoftwareSerial dfSerial(10, 11);   // RX = D10 ← DFPlayer TX, TX = D11 → 1 kΩ → DFPlayer RX
5DFRobotDFPlayerMini player;
6
7void setup() {
8  Serial.begin(115200);
9  dfSerial.begin(9600);                       // DFPlayer her zaman 9600 baud / DFPlayer always uses 9600 baud
10  Serial.println(F("DFPlayer baslatiliyor / Starting DFPlayer..."));
11
12  if (!player.begin(dfSerial)) {              // reset gönderir, kartı bekler / sends a reset, waits for the card
13    Serial.println(F("Unable to begin: kablolari ve SD karti kontrol et / check wiring and SD card"));
14    while (true) {}                           // burada dur / stop here
15  }
16  Serial.println(F("DFPlayer Mini online."));
17  Serial.print(F("Karttaki dosya / Files on card: "));
18  Serial.println(player.readFileCounts());    // gizli dosyalar da sayılır / hidden files are counted too
19
20  player.volume(20);                          // ses seviyesi 0-30 / volume 0-30
21  player.EQ(DFPLAYER_EQ_NORMAL);              // ekolayzır: normal / equalizer: normal
22  player.play(1);                             // kökteki ilk dosya / first file in the root
23}
24
25void loop() {
26  if (player.available()) {                   // modülden bildirim geldi / a message arrived from the module
27    uint8_t type = player.readType();
28    int value = player.read();
29    if (type == DFPlayerPlayFinished) {
30      Serial.print(F("Parca bitti / Track finished: "));
31      Serial.println(value);
32    } else if (type == DFPlayerError) {
33      Serial.print(F("Hata kodu / Error code: "));
34      Serial.println(value);                  // kodların anlamı tabloda / meanings are in the table
35    } else if (type == DFPlayerCardRemoved) {
36      Serial.println(F("SD kart cikarildi / SD card removed"));
37    }
38  }
39}
40

1#include <SoftwareSerial.h>
2#include <DFRobotDFPlayerMini.h>
3
4SoftwareSerial dfSerial(10, 11);            // RX = D10 ← DFPlayer TX, TX = D11 → 1 kΩ → DFPlayer RX
5DFRobotDFPlayerMini player;
6const byte BUSY_PIN = 5;                    // DFPlayer BUSY: çalarken LOW / LOW while playing
7
8// Klasör 01: 001.mp3 "Sıcaklık", 002.mp3 "derece" / folder 01: 001.mp3 "Temperature", 002.mp3 "degrees"
9// Klasör 02: 001.mp3 ... 100.mp3 = 1 ... 100 sayıları / folder 02: 001.mp3 ... 100.mp3 = numbers 1 ... 100
10
11void playAndWait(uint8_t folder, uint8_t file) {
12  player.playFolder(folder, file);          // /01/001.mp3 gibi / e.g. /01/001.mp3
13  unsigned long start = millis();
14  while (digitalRead(BUSY_PIN) == HIGH && millis() - start < 1000) {}  // çalma başlasın / wait for playback to start
15  while (digitalRead(BUSY_PIN) == LOW) {}                              // parça bitsin / wait for the track to end
16  delay(50);
17}
18
19void sayTemperature(int degrees) {
20  playAndWait(1, 1);                        // "Sıcaklık" / "Temperature"
21  if (degrees >= 1 && degrees <= 100) {
22    playAndWait(2, degrees);                // sayıyı söyle / say the number
23  }
24  playAndWait(1, 2);                        // "derece" / "degrees"
25}
26
27void setup() {
28  pinMode(BUSY_PIN, INPUT);
29  Serial.begin(115200);
30  dfSerial.begin(9600);
31  if (!player.begin(dfSerial)) {
32    Serial.println(F("Unable to begin"));
33    while (true) {}
34  }
35  player.volume(22);
36  sayTemperature(23);                       // değer bir sensörden de gelebilir / the value can come from a sensor
37}
38
39void loop() {
40}
41

1#include <SoftwareSerial.h>
2#include <DFRobotDFPlayerMini.h>
3
4SoftwareSerial dfSerial(10, 11);            // RX = D10 ← DFPlayer TX, TX = D11 → 1 kΩ → DFPlayer RX
5DFRobotDFPlayerMini player;
6
7const byte BTN[3] = {2, 3, 4};              // önceki, oynat/duraklat, sonraki / previous, play/pause, next
8const byte POT_PIN = A0;                    // ses ayarı potu / volume potentiometer
9bool lastState[3] = {HIGH, HIGH, HIGH};
10unsigned long lastChange[3] = {0, 0, 0};
11bool paused = false;
12int lastRaw = -100;                         // ilk turda sesi mutlaka ayarla / always set the volume on the first pass
13unsigned long lastPotRead = 0;
14unsigned long lastFinish = 0;
15
16// Butona yeni basıldıysa true döner (50 ms sıçrama filtresi) / true on a new press (50 ms debounce)
17bool pressed(byte i) {
18  bool s = digitalRead(BTN[i]);
19  if (s != lastState[i] && millis() - lastChange[i] > 50) {
20    lastState[i] = s;
21    lastChange[i] = millis();
22    return s == LOW;                        // INPUT_PULLUP: basınca LOW / LOW when pressed
23  }
24  return false;
25}
26
27void setup() {
28  for (byte i = 0; i < 3; i++) pinMode(BTN[i], INPUT_PULLUP);
29  Serial.begin(115200);
30  dfSerial.begin(9600);
31  if (!player.begin(dfSerial)) {
32    Serial.println(F("Unable to begin"));
33    while (true) {}
34  }
35  player.play(1);
36}
37
38void loop() {
39  if (pressed(0)) { player.previous(); paused = false; }
40  if (pressed(2)) { player.next(); paused = false; }
41  if (pressed(1)) {
42    if (paused) player.start();             // kaldığı yerden devam / resume
43    else player.pause();                    // duraklat / pause
44    paused = !paused;
45  }
46
47  if (millis() - lastPotRead > 100) {       // potu saniyede 10 kez oku / read the pot 10 times per second
48    lastPotRead = millis();
49    int raw = analogRead(POT_PIN);
50    if (abs(raw - lastRaw) > 20) {          // titremeyi yok say / ignore jitter
51      lastRaw = raw;
52      player.volume(map(raw, 0, 1023, 0, 30));
53    }
54  }
55
56  if (player.available() && player.readType() == DFPlayerPlayFinished) {
57    if (millis() - lastFinish > 1000) player.next();   // parça bitince sonrakine geç / go to the next track
58    lastFinish = millis();                  // bazı modüller bitişi iki kez bildirir / some modules report the end twice
59  }
60}
61

1#include <WiFi.h>
2#include <WebServer.h>
3#include <DFRobotDFPlayerMini.h>
4
5const char *WIFI_SSID = "WIFI_ADI";         // kendi ağ adın / your network name
6const char *WIFI_PASS = "WIFI_SIFRESI";     // kendi şifren / your password
7
8HardwareSerial dfSerial(2);                 // UART2
9DFRobotDFPlayerMini player;
10WebServer server(80);
11int volumeLevel = 15;
12
13const char PAGE[] = R"rawliteral(<!DOCTYPE html><html><head>
14<meta name="viewport" content="width=device-width,initial-scale=1"><title>ESP32 MP3</title>
15<style>body{font-family:sans-serif;text-align:center}button{font-size:22px;margin:6px;padding:10px 18px}</style>
16</head><body><h2>DFPlayer Mini</h2>
17<button onclick="c('prev')">Prev</button><button onclick="c('pause')">Pause</button>
18<button onclick="c('play')">Play</button><button onclick="c('next')">Next</button><br>
19<button onclick="c('down')">Vol -</button><button onclick="c('up')">Vol +</button>
20<p id="s"></p>
21<script>function c(x){fetch('/cmd?c='+x).then(r=>r.text()).then(t=>document.getElementById('s').innerText=t)}</script>
22</body></html>)rawliteral";
23
24void handleCmd() {
25  String c = server.arg("c");
26  if (c == "next") player.next();
27  else if (c == "prev") player.previous();
28  else if (c == "pause") player.pause();
29  else if (c == "play") player.start();
30  else if (c == "up" && volumeLevel < 30) player.volume(++volumeLevel);
31  else if (c == "down" && volumeLevel > 0) player.volume(--volumeLevel);
32  server.send(200, "text/plain", "Ses / Volume: " + String(volumeLevel));
33}
34
35void setup() {
36  Serial.begin(115200);
37  dfSerial.begin(9600, SERIAL_8N1, 16, 17); // RX = GPIO16 ← DFPlayer TX, TX = GPIO17 → 1 kΩ → DFPlayer RX
38  delay(1000);                              // modül kartı okusun / let the module read the card
39  if (!player.begin(dfSerial)) {
40    Serial.println("Unable to begin");
41    while (true) delay(10);
42  }
43  player.volume(volumeLevel);
44
45  WiFi.begin(WIFI_SSID, WIFI_PASS);
46  while (WiFi.status() != WL_CONNECTED) {   // ağa bağlanana kadar bekle / wait for the network
47    delay(500);
48    Serial.print(".");
49  }
50  Serial.print("\nAdres / Address: http://");
51  Serial.println(WiFi.localIP());
52
53  server.on("/", []() { server.send(200, "text/html", PAGE); });
54  server.on("/cmd", handleCmd);
55  server.begin();
56  player.play(1);
57}
58
59void loop() {
60  server.handleClient();                    // tarayıcı isteklerini işle / handle browser requests
61}
62

1from machine import UART, Pin
2import time
3
4# GP0 (UART0 TX) → 1 kΩ → DFPlayer RX, GP1 (UART0 RX) ← DFPlayer TX
5uart = UART(0, baudrate=9600, tx=Pin(0), rx=Pin(1))
6btn_next = Pin(14, Pin.IN, Pin.PULL_UP)     # sonraki parça / next track
7btn_play = Pin(15, Pin.IN, Pin.PULL_UP)     # oynat-duraklat / play-pause
8TRACKS = 5                                  # /mp3 klasöründeki dosya sayısı / number of files in /mp3
9
10def send(cmd, param=0):
11    # 10 baytlık komut paketi, onay istemeden / 10-byte command frame without ACK
12    frame = bytearray([0x7E, 0xFF, 0x06, cmd, 0x00, param >> 8, param & 0xFF, 0, 0, 0xEF])
13    checksum = -sum(frame[1:7]) & 0xFFFF    # sağlama toplamı / checksum
14    frame[7] = checksum >> 8
15    frame[8] = checksum & 0xFF
16    uart.write(frame)
17    time.sleep_ms(30)
18
19buf = b""
20
21def events():
22    # gelen 10 baytlık bildirimlerin komut kodlarını döndür / return command codes of incoming messages
23    global buf
24    if uart.any():
25        buf += uart.read()
26    codes = []
27    while True:
28        start = buf.find(b"\x7e")
29        if start < 0:
30            buf = b""
31            break
32        if len(buf) - start < 10:
33            buf = buf[start:]
34            break
35        frame = buf[start:start + 10]
36        if frame[9] == 0xEF:
37            codes.append(frame[3])
38            buf = buf[start + 10:]
39        else:
40            buf = buf[start + 1:]
41    return codes
42
43def play_track(n):
44    send(0x12, n)                           # /mp3/000n.mp3 dosyasını çal / play /mp3/000n.mp3
45
46time.sleep(2)                               # modül kartı okusun / let the module read the card
47send(0x06, 18)                              # ses 18/30 / volume 18 of 30
48track = 1
49play_track(track)
50playing = True
51last_end = 0
52
53while True:
54    if btn_next.value() == 0:
55        track = track % TRACKS + 1          # son parçadan sonra başa dön / wrap after the last track
56        play_track(track)
57        playing = True
58        time.sleep_ms(300)                  # basit sıçrama önleme / simple debounce
59    if btn_play.value() == 0:
60        send(0x0E if playing else 0x0D)     # 0x0E duraklat, 0x0D devam / 0x0E pause, 0x0D resume
61        playing = not playing
62        time.sleep_ms(300)
63    for code in events():
64        # 0x3D: SD karttaki parça bitti / 0x3D: track on the SD card finished
65        if code == 0x3D and time.ticks_diff(time.ticks_ms(), last_end) > 1000:
66            last_end = time.ticks_ms()      # çift bildirimi yok say / ignore the duplicate message
67            track = track % TRACKS + 1
68            play_track(track)
69