Some 32u4 USB port is missing, here is the reason:
The 32u4 at Yun creates a serial instance whenever it runs its bootloader. The board is an instance of USB's Connected Device Class (CDC) driver. if bootloader is missing then USB port is gone.
Here is solution:
sonnyyu:
You need reflash correct bootloader.
nano /usr/bin/run-avrdude
Change the efuse value from FB to CB
For new install system only! make sure Yun show up at COM & LPT.
If it is not there then install the driver.
thegreatestdjhero:
i just looked it up on google
code 28 mean the drivers are not installed meaning the drivers did not install during setup
heres what you do
1.go to contorl panel -> system and secrity -> under system there is Device manager Click it
2. under other devices there maybe two or more devices without drivers for the arduino there is only one device
its a serual port i think i can't remember the name of it anyways
3. right click the device that you've want to install the driver -> properites -> driver tab -> update driver -> browse my computer manualy -> let me pick the driver -> click have disk -> browse
4. browse the install dir
for 64-bit it maybe in %systemdrive%/program files/arduino/drivers/arduino.inf or in %systemdrive%/program files(x86)/arduino/drivers/arduino.ini
5. click arduino.inf(arduino) and press ok and ok then chose your arduino type and then press next
6. it will install the driver without error
if it has an error post the error code to the forum
7.no error then your done!
Some time you might need disable windows driver signature enforcement at windows 8 or later. I wish in future Arduino team sign the digital signature on driver.
Understanding Wifi Signal Strength:
Wireless signal strength is traditionally measured in either percentile or dBm (the power ratio in decibels of the measured power referenced to one milliwatt.) The level of 100% is equivalent to the signal level of -35 dBm and higher, e.g. both -25 dBm and -15 dBm will be shown as 100%, because this level of signal is very high. The level of 1% is equivalent to the signal level of -95 dBm. Between -95 dBm and -35 dBm, the percentage scale is linear, i.e. 50% is equivalent to -65 dBm.
Get Wireless signal strength in dBm at Yun:
iwconfig 2>&1 | grep 'Signal level'
Link Quality=70/70 Signal level=-37 dBm
A lot of unstable Wifi connection is related with Wifi Signal Strength, say Signal Strength is 50%/-65 dBm, to make Signal Strength -35 dBm all you need is either one 30 dBi antenna at Yun or at Router, or even 15 dBi antenna at Yun plus 15 dBi antenna at Router.
Thanks for your help but I think my Yún is broken...
It should detect something when I connect it to Windows, but no.
Probably is the Micro USB connector that doesnt work.
When I run:
/usr/bin/run-avrdude
The output is:
avrdude: AVR device not responding
avrdude: initialization failed, rc=-1
Double check connections and try again, or use -F to override
this check.
avrdude done. Thank you.
Many ISPs started the bad practice of DNS hijacking on non-existent domain name (.local is non-existent domain to ISP) for making money by displaying the internet advertisements.
Networking device hostnames ending with .local are often employed in private networks, where they are resolved either via the multicast domain name service (mDNS) and/or local Domain Name System (DNS) servers. The implementation of both approaches on the same network can be problematic, however, so resolving such names via “unicast” DNS servers has fallen into disfavor as computers, printers and other devices supporting zero-configuration networking (zeroconf) have become increasingly common.
Microsoft recommendations:
The connection of Macintosh and Linux computers and/or zeroconf peripherals to Windows networks can be problematic if those networks include name servers that use .local as a search domain for internal devices. At one time, Microsoft at least suggested the use of .local as a pseudo-TLD for small private networks with internal DNS servers...
It seem windows machine resolved .local domain with DNS server first then mDNS, if DNS server resolved the IP then It will be failed ( like Time Warner Cable DNS server hijacking .local domain) . However if local router as first DNS server which is DNS proxy forwarding request to mDNS or use Google DNS which fail to resolve IP falling back to mDNS.
I test Linux as well as Macintosh machine both working fine with Time Warner Cable DNS.
Using Donnectify can work for some of yours. For the questions like what is my arduinos ip address etc.. Also I see my Arduino in IDE only after I access it from browser via the address that I see from Connectify hotspot.
I am having a similar problem to a few others...I am able to SSH into the board, see it in a browser at arduino.local/, and upload to the board over the USB cable. Unfortunately, the Yun does not show up in the Port menu in the IDE over Wifi. I have tried the different ideas posted earlier here to no avail.
I am running Arduino IDE 1.5.6-r2 and am on OS X 10.9.2. Any help would be greatly appreciated!
glenmeyerowitz:
I am having a similar problem to a few others...I am able to SSH into the board, see it in a browser at arduino.local/, and upload to the board over the USB cable. Unfortunately, the Yun does not show up in the Port menu in the IDE over Wifi. I have tried the different ideas posted earlier here to no avail.
I am running Arduino IDE 1.5.6-r2 and am on OS X 10.9.2. Any help would be greatly appreciated!
Glen
I have same Arduino IDE 1.5.6-r2 and OS X 10.9.2, every thing is fine.
The Arduino IDE itself is written in Java, and it can communicate to the Arduino via the Java library.
Sometime you need reinstall Java runtime as well as Arduino IDE.
When the Arduino Yun is first powered on, the Wifi will be starting in AP-Mode ("Access Point Mode") and the Yun creates a new wireless network on the IP range 192.168.240.0/24, and it will take 192.168.240.1 . If you scan for Wifi networks, you should see a new network with a SSID as Arduino Yun-XXXXXXXXXXXX , where XXXXXXXXXXXX is the MAC address of the Yun's Wifi interface. Once you connected to Yun, then could access at 192.168.240.1 or arduino.local.
I have similar issues and have tried to read through this thread thread trying various things along the way, but I'm feeling it's some other network straightforward issue, maybe. Anyway my symptoms are :
On wifi I can access the yun config panel, use putty, use sFtp all fine
but the Yun doesn't appear on the Port menu.
On wifi using the suggested tools bonjour lists and shows the settings for the yun
If I connect my computer to ethernet whilst leaving yun on wifi and restart the yun magically appears on the IDE port menu.
The signal strength of the wifi is good at both the yun end and the laptop computer.
