i2c.h

#define I2CADDR0 0x42

#define I2CADDR1 0x44

#define I2CADDR2 0x46

#define I2CADDR3 0x48

#define I2CADDR4 0x4A

#define I2CADDR5 0x4C

#define I2CADDR6 0x4E

#define I2CADDR7 0x50

void i2c_readaddr_init(void);

int i2c_readaddr(void);