text: #ifndef DS3231_H
  #define DS3231_H
  
  
  // BITS and ADDRESSES for I2C communication with DS3231 Real time Clock
  
  #define I2C_WRITE_BIT 	0
  #define I2C_READ_BIT	1
  
  
  // Address of the DS3231 is 1101000 + READ/WRITE BIT
  #define DS3231_ADDRESS 0x68
  
  
  #endif
  