Код: Выделить всё

#include <OneWire.h>
OneWire  ds(4);  // on pin 10 (a 4.7K resistor is necessary)
byte deviceType;
void setup(void) {
  Serial.begin(9600);
}

void loop(void) {
  byte i;

  byte type_s;
  byte data[12];
  byte addr[8];
  float celsius; 
  
  if ( !ds.search(addr)) {
    ds.reset_search();
    delay(250);
    return;
  }
  
 
 

  if (OneWire::crc8(addr, 7) != addr[7]) {
     
      return;
  }

 

  switch (addr[0]) {
    case 0x10:
      type_s = 1;
      deviceType=1; //Chip = DS18S20 or old DS1820
      break;
    case 0x28:
      type_s = 0;
      deviceType=2;//Chip = DS18B20
      break;
    case 0x22:
      type_s = 0;
      deviceType=3;// Chip = DS1822
      break;
    default:
      deviceType=0;//������ ����������
      return;
  } 

  ds.reset();
  ds.select(addr);
  ds.write(0x44, 1);        
  
  delay(1000);     
 
  
  ds.reset();
  ds.select(addr);    
  ds.write(0xBE);     
 for ( i = 0; i < 9; i++) {data[i] = ds.read();} 
     


  int16_t raw = (data[1] << 8) | data[0];
  if (type_s) {
    raw = raw << 3; 
    if (data[7] == 0x10) {
      raw = (raw & 0xFFF0) + 12 - data[6];
    }
  } else {
    byte cfg = (data[4] & 0x60);
    if (cfg == 0x00) raw = raw & ~7;  
    else if (cfg == 0x20) raw = raw & ~3; 
    else if (cfg == 0x40) raw = raw & ~1; 
   
  }
  celsius = (float)raw / 16.0;
  
  
  Serial.write (1);
  Serial.write (2);
  Serial.print (deviceType); 
  Serial.write (3);
     for( i = 0; i < 8; i++) {      
   
     Serial.write (2);
     Serial.print(addr[i], HEX);
     Serial.write (3);
    }
  Serial.write (2);
  Serial.print(celsius);
  Serial.write (3); 
  Serial.write (4);
  
  
}