I had been working with Arduino UNO (COM3) and Leonardo (COM4) happily using WIN10 and Arduino 1.6.6until a few weeks ago. I took a gap in the activity then on trying it again yesterday found the same problem with the COM ports. The Arduino application displays the COM ports with additional non alphanumeric characters in string following the port number. Consequently the port does not connect to the boards.
WIN10 Home Ver. 1511 OS Build 10586.29 64 bit
DELL Inspiron Intel I3 with 4 GB RAM
Arduino UNO COM3 driver ver 1.2.2.0
Arduino Leonardo COM4 driver ver 1.2.2.0
I tried reinstalling the Arduino1.6.6, and the drivers without success in correcting - since there is no port name with garbage characters - lol. But it is rather annoying as I don't know how to fix it.
Any ideas please why this might be broken now and how to fix?
Thanks
****Looking at the latest Hourly Build update Release Notes there are a few items concerning the Serial Port. I tried downloading this but I am not sure how to install it.
I put the 1.6.5 Beta back in and it initially shows the COM ports properly. So 1.6.7 may fix it but I am not sure.
Can I get guidance on this please and pointer to info how to install hourly build if it fixes this.
Thanks
No wait, even though it looked OK initially, the 1.6.5 when I uploaded the program - it still had the same issue.
Here is first line of AVRDUDE.CONF referenced in errors
$Id: avrdude.conf.in 1236 2013-09-16 19:40:15Z joerg_wunsch $ -- text --
Here is upload error paste:
Arduino: 1.6.5 (Windows 8), Board: "Arduino Leonardo"
Sketch uses 7,296 bytes (25%) of program storage space. Maximum is 28,672 bytes.
Global variables use 717 bytes (28%) of dynamic memory, leaving 1,843 bytes for local variables. Maximum is 2,560 bytes.
PORTS {COM4ñ«Lï«?, } / {COM4càªèª&?f&h£KwP, } => {COM4càªèª&?f&h£KwP, }
Found upload port: COM4càªèª&?f&h£KwP
C:\Program Files (x86)\Arduino\hardware\tools\avr/bin/avrdude -CC:\Program Files (x86)\Arduino\hardware\tools\avr/etc/avrdude.conf -v -patmega32u4 -cavr109 -PCOM4càªèª&?f&h£KwP -b57600 -D -Uflash:w:C:\Users\NICHOL~1\AppData\Local\Temp\build700207152107275112.tmp/BrainSerialTest.cpp.hex:i
avrdude: Version 6.0.1, compiled on Apr 15 2015 at 19:59:58
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 : COM4càªèª&?f&h£KwP
Using Programmer : avr109
Overriding Baud Rate : 57600
avrdude: ser_open(): can't open device "\.\COM4càªèª&?f&h£KwP"Problem uploading to board. See http://www.arduino.cc/en/Guide/Troubleshooting#upload for suggestions.
: The system cannot find the file specified.
avrdude: ser_send(): write error: sorry no info avail
This report would have more information with
"Show verbose output during compilation"
enabled in File > Preferences.