 static int value;
 static byte stack[RF12_MAXDATA+4], top, sendLen, dest;
 static byte testbuf[RF12_MAXDATA], testCounter, useHex;
-static byte nodes[MAX_NODES + 1];
+static byte nodes[MAX_NODES + 1];  // [0] is unused
 static byte band,postingsIn = 0, postingsOut = 0;
 
 void displayVersion(uint8_t newline );

#endif
      break;
      case 'i': // set node id
        if ((value > 0) && (value < 32)) {
          nodes[value] = 0;                                      // Prevent allocation of this node number
          config.nodeId = (config.nodeId & 0xE0) + (value & 0x1F);
          saveConfig();
        }

          showString(PSTR("erased\n"));
        }
        break;
#endif
      case 'z': // put the ATmega in ultra-low power mode (reset needed)
        if (value == 123) Sleep;
        break;
        case 'q': // turn quiet mode on or off (don't report bad packets)
        if (value) config.flags |= QUIET;
          else config.flags &= ~QUIET;
