     uint8_t type = buf->data[2];
 
     Serial.print(argv[0]);
-    Serial.print(" ");
+    Serial.print(" 00 ");
     Serial.print(dest, HEX);
     Serial.print(" ");
     Serial.print(type, HEX);



static uint8_t node_id;

typedef struct {
    uint8_t len;

            memcpy(&beacon, &rcv[3], sizeof(beacon));
            // determine next send time
            next_send = m + beacon.slot_offs + (beacon.slot_size * node_id);
            // recalculate time offset
            time_offset = beacon.time - m;
            break;

        case 0x01:
