36 Sirina Erasitexniko -

delay(1000);

| Symptom | Likely Fix | |---------|-------------| | No sound | Replace battery/check polarity. Check speaker coil continuity. | | Weak buzzing | Bad capacitor (100–470µF near LM386). Replace. | | One tone only | Rotary switch corroded. Clean with contact spray. | | Screaming feedback | Microphonic piezo. Add rubber gasket. | | Overheats | Short circuit across output transistor (BD139 common). | 36 sirina erasitexniko

void loop() for(int i=0; i<36; i++) tone(buzzerPin, tones[i], 200); delay(250); 36 sirina erasitexniko