#define E_USER_DEFAULT 194
#define E_USER_XBEE 195
#define E_USER_RC_PROTO 196
+#define E_USER_I2C_PROTO 197
#define LED1_ON() sbi(PORTA, 2)
#define LED1_OFF() cbi(PORTA, 2)
#define BEEP_PRIO 120
#define SPI_PRIO 100 /* users of spi_servo must have lower prio */
#define XBEE_PRIO 80
+#define I2C_PRIO 70
#define LOW_PRIO 60
/* lowest priority */