I tried to upload example code form arduino software and got error below. Two arduino attach with my computer running windows8.1. And These arduino using port 3 and port 4. The arduino using Port 3 is cordinator and arduino using port 4 is router. I doesn't understand why error show COM1 is not available. I am not using COM1.
Arduino: 1.6.0 (Windows 8), Board: "Arduino Uno" Sketch uses 1,030 bytes (3%) of program storage space. Maximum is 32,256 bytes. Global variables use 9 bytes (0%) of dynamic memory, leaving 2,039 bytes for local variables. Maximum is 2,048 bytes. C:\Program Files (x86)\Arduino/hardware/tools/avr/bin/avrdude -CC:\Program Files (x86)\Arduino/hardware/tools/avr/etc/avrdude.conf -v -patmega328p -carduino -PCOM1 -b115200 -D -Uflash:w:C:\Users\Jiya\AppData\Local\Temp\build1135139715306090793.tmp/Blink.cpp.hex:i avrdude: Version 6.0.1, compiled on Apr 3 2014 at 23:12:16 Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/ Copyright (c) 2007-2009 Joerg Wunsch System wide configuration file is "C:\Program Files (x86)\Arduino/hardware/tools/avr/etc/avrdude.conf" Using Port : COM1 Using Programmer : arduino Overriding Baud Rate : 115200 avrdude: ser_open(): can't open device "\\.\COM1": The system cannot find the file specified. avrdude done. Thank you. Problem uploading to board. See http://www.arduino.cc/en/Guide/Troubleshooting#upload for suggestions. Board at COM1 is not available Board at COM1 is not available Board at COM1 is not available Board at COM1 is not available Board at COM1 is not available This report would have more information with "Show verbose output during compilation" enabled in File > Preferences.