THE GHETTO BLASTER MOUSE

1/*
2 * GHETTO BLASTER MOUSE - Main Controller
3 * Arduino Mega 2560
4 * 
5 * DFPlayer Mini MP3 playback
6 * Handles speaker output
7 */
8
9#include <SoftwareSerial.h>
10#include <DFRobotDFPlayerMini.h>
11
12SoftwareSerial dfSerial(10, 11); // RX, TX
13DFRobotDFPlayerMini player;
14
15void setup() {
16  dfSerial.begin(9600);
17  
18  if (!player.begin(dfSerial)) {
19    while(true); // Halt if player not found
20  }
21  
22  player.volume(25);  // 0-30
23  player.play(1);     // Start first track
24}
25
26void loop() {
27  // Add controls as needed
28  // Volume knob, track skip, etc.
29  
30  // Auto-advance when track ends
31  if (player.available()) {
32    if (player.readType() == DFPlayerPlayFinished) {
33      player.next();
34    }
35  }
36}

1/*
2 * GHETTO BLASTER MOUSE - Spinner Controller
3 * Arduino Nano
4 * 
5 * Microphone input modulates DC motor speed via PWM
6 * Louder sound = faster mouse
7 */
8
9const int MIC_PIN = A0;
10const int MOTOR_PWM = 9;
11const int MOTOR_DIR1 = 7;
12const int MOTOR_DIR2 = 8;
13
14// Smoothing
15const int SAMPLES = 10;
16int readings[SAMPLES];
17int readIndex = 0;
18int total = 0;
19
20// Calibration - adjust to your microphone
21const int MIC_MIN = 300;   // Quiet room baseline
22const int MIC_MAX = 700;   // Loud music peak
23const int MOTOR_MIN = 80;  // Minimum visible spin
24const int MOTOR_MAX = 255; // Full speed
25
26void setup() {
27  pinMode(MOTOR_PWM, OUTPUT);
28  pinMode(MOTOR_DIR1, OUTPUT);
29  pinMode(MOTOR_DIR2, OUTPUT);
30  
31  // Set motor direction (forward)
32  digitalWrite(MOTOR_DIR1, HIGH);
33  digitalWrite(MOTOR_DIR2, LOW);
34  
35  // Initialize smoothing array
36  for (int i = 0; i < SAMPLES; i++) {
37    readings[i] = 0;
38  }
39}
40
41void loop() {
42  // Read microphone
43  int micValue = analogRead(MIC_PIN);
44  
45  // Smooth the signal
46  total = total - readings[readIndex];
47  readings[readIndex] = micValue;
48  total = total + readings[readIndex];
49  readIndex = (readIndex + 1) % SAMPLES;
50  int smoothed = total / SAMPLES;
51  
52  // Map to motor speed
53  int motorSpeed = map(smoothed, MIC_MIN, MIC_MAX, MOTOR_MIN, MOTOR_MAX);
54  motorSpeed = constrain(motorSpeed, MOTOR_MIN, MOTOR_MAX);
55  
56  // Drive motor
57  analogWrite(MOTOR_PWM, motorSpeed);
58  
59  delay(10);
60}