#define  RFM12_IRQ       PD2
#define  RFM12_CS        PD3
#define  RFM12_SDI       PD4
#define  RFM12_SDO       PD5
#define  RFM12_SCK       PD6


#define  RFM12_DDR       DDRD
#define  RFM12_PORT      PORTD
#define  RFM12_PIN       PIND

#define  PAKET_LEN       18
#define  SENSOR_ANZ       6

volatile uint8_t sensor[SENSOR_ANZ][PAKET_LEN];

void rfm12_init();
uint16_t rfm12_send_cmd(uint16_t);