Торчат единички на OC2A,OC2B:(
Соответсвующие пины портов (OC0A, OC0B, OC2A,OC2B) настроены на вывод, подтянуты к 1.

...
Init_Devices()
{
  __disable_interrupt(); 
   Port_Init();
   CLR_OLED();
   Timer0_Init();
   Timer1_Init();
   Timer2_Init();
   
   Uart_Init();

   MCUCR = 0x00;
   EICRA = 0x00;  //extended ext ints
   EIMSK = 0x00;
 
   TIMSK0 = 0x01; //timer 0 interrupt sources
   TIMSK1 = 0x01; //timer 1 interrupt sources
   TIMSK2 = 0x01; //timer 2 interrupt sources
 
   PCMSK0 = 0x00; //pin change mask 0 
   PCMSK1 = 0x00; //pin change mask 1 
   PCMSK2 = 0x00; //pin change mask 2
   PCICR = 0x00;  //pin change enable 
  __enable_interrupt(); 
}
...
void Timer0_Init(void) {
    TCCR0A |= (1<<COM0B0)|(1<<COM0B1)|(1<<COM0A0)|(1<<COM0A1)|(1<<WGM01)|(1<<WGM00);    /*Инициализация таймера "0" в режим Fast PWM (non-inverting)*/
    TCCR0B &= (1<<WGM02);
    TCCR0B |= (1<<CS02);
    TCNT0 = 0x00;		
    OCR0A = 0x10;
    OCR0B = 0x10;
}

void Timer2_Init(void) {
    TCCR0A |= (1<<COM2B0)|(1<<COM2B1)|(1<<COM2A0)|(1<<COM2A1)|(1<<WGM21)|(1<<WGM20);    /*Инициализация таймера "2" в режим Fast PWM (non-inverting)*/
    TCCR0B &= (1<<WGM22);
    TCCR0B |= (1<<CS22);
    TCNT2 = 0x00;		
    OCR2A = 0x10;
    OCR2B = 0x10;
}
...