Arduino nano и DFPlayer mini говорящая автосигнализация

 #include <EEPROM.h> 
#include <avr/sleep.h> 
#include <SoftwareSerial.h> 
SoftwareSerial mySoftwareSerial(10,11); 
#include "DFRobotDFPlayerMini.h" 
DFRobotDFPlayerMini myDFPlayer; 
 
unsigned long  SEREN_time=0; 
uint8_t  ZonaSeren=0, TrekIR=0, randNumber=0 ; 
uint8_t Step=4,  fiasco = 0; 
bool Seren_activity=1; 
volatile bool FLG_Sleep =1; 
boolean flagStart=1; 
uint8_t address = 56; 
uint8_t addrs_test = 68; 
 
 
#define DEBUG_TO_COMPORT 
uint8_t Regim=3; 
#define SEREN 2 
//#define RECVR 3  
#define BUSY  9 
#define Power   4 
#define sbros_time 500 
#define max_regim  5 
#define volum     30 
#define ALARM7    3 
 
#define papkaN      1 
#define trek_start  1 
void myISR () {FLG_Sleep  = 1;} 
 
void setup() { 
#ifdef DEBUG_TO_COMPORT 
Serial.begin(115200); 
mySoftwareSerial.begin (9600); 
Serial.println("start ?"); 
myDFPlayer.setTimeOut(500); 
#endif 
pinMode(BUSY,  INPUT); 
pinMode(SEREN, INPUT); 
pinMode(Power,  OUTPUT); 
digitalWrite(Power, HIGH); 
 
mySoftwareSerial.begin (9600); 
payza(1000); 
ADCSRA &= ~(1 << ADEN); 
if (!myDFPlayer.begin(mySoftwareSerial)) { 
Serial.println("Крах ?"); 
while(true); 
} 
#ifdef DEBUG_TO_COMPORT 
Serial.println("start OK"); 
myDFPlayer.setTimeOut(500); 
#endif  
myDFPlayer.outputDevice(DFPLAYER_DEVICE_SD); 
myDFPlayer.volume(volum); 
myDFPlayer.EQ(DFPLAYER_EQ_POP); 
myDFPlayer.playFolder(papkaN, trek_start); 
payza(200); 
} 
void loop () { 
if (FLG_Sleep) 
{ 
digitalWrite(Power, HIGH); 
if (!Seren_activity && digitalRead(SEREN)) 
{ 
ZonaSeren++; 
Seren_activity=1; 
SEREN_time = millis(); 
} 
else if (Seren_activity && !digitalRead(SEREN)) Seren_activity=0; 
if (millis()-SEREN_time > sbros_time && ZonaSeren) 
{  
if(Regim)  randNumber = Regim; 
else randNumber = random(0,max_regim); 
SEREN_time = millis(); 
      
if (!Seren_activity)  myDFPlayer.playFolder(randNumber, ZonaSeren); 
else  myDFPlayer.playFolder(randNumber, ALARM7); 
while( digitalRead(BUSY)&& millis()-SEREN_time < sbros_time)  {} 
if  (!digitalRead(BUSY)) ZonaSeren=0; 
} 
else if (digitalRead(BUSY)&& millis()-SEREN_time>sbros_time && !ZonaSeren && !digitalRead(SEREN))  OF_Power (); 
} 
if (!FLG_Sleep ) 
{ 
attachInterrupt(digitalPinToInterrupt(SEREN),myISR, HIGH); 
set_sleep_mode(SLEEP_MODE_PWR_DOWN);  
sleep_mode(); 
detachInterrupt(digitalPinToInterrupt(SEREN)); 
} 
} 
void OF_Power (){ 
TrekIR=0; ZonaSeren=0; 
digitalWrite(Power, LOW); 
delay(50); 
FLG_Sleep = 0; 
} 
void payza(unsigned long _mls){ 
unsigned long _timeout = millis() + _mls; 
while ( millis() < _timeout)  {}; 
}