Difference between revisions of "Arduino Yun"

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=Arduino Yun=
 +
 +
=Crash Course=
 +
*if you don't know the yun password ask someone that would know in person
 +
**all of the cs yuns use the same password
 +
*getting started http://arduino.cc/en/Guide/ArduinoYun
 +
*Arduino IDE 1.5.8 BETA must be used, get it here: http://arduino.cc/en/Main/Software
 +
*micro usb port is used for power and for uploading sketches
 +
*IP address can be used in a web browser or to ssh
 +
*SD cards and flash drives are automatically mounted to /mnt/
 +
*OS is OpenWrit and uses OPKG (similar to apt-get) http://arduino.cc/en/Tutorial/YunPackageManager
 +
*has Python 2.7
 +
*advised that C++ be cross-compiled
 +
** GCC exists in version 1.5+
 +
*the "Bridge" library creates a bridge between Arduino and Linux
 +
**read this for more information: http://arduino.cc/en/Reference/YunBridgeLibrary
 +
**or this for an example: http://arduino.cc/en/Tutorial/Bridge
 +
* [http://arduino.cc/en/Tutorial/TemperatureWebPanel example] Web pages can be added to /www/ and accessed normally
 +
* [http://arduino.cc/en/Guide/ArduinoYun#toc5 source] REST has a built-in interface for pins under /data
 +
* [http://forum.arduino.cc/index.php?topic=188101.msg1593444#msg1593444 source] Pins 21, 22, and 23 can be accessed in /sys/class/gpio/ (in linux)
 +
* [https://github.com/arduino/YunWebUI example] LuCI web interface can be hacked somehow (magic?)
 +
 +
each Yun
 +
*is numbered
 +
*has a designated box
 +
*has a label on it with its number and the last two octets of its IP address (I.E. cs4 130.63 is csyun4 with the IP 159.28.130.63)
 +
**159.28 is Earlham's IP address
 +
 
=Resources=
 
=Resources=
−
[[http://arduino.cc/en/Main/ArduinoBoardYun?from=Products.ArduinoYUN]]
+
[http://arduino.cc/en/Main/ArduinoBoardYun?from=Products.ArduinoYUN product page]
−
[[http://arduino.cc/en/Guide/ArduinoYun Getting Started]]
 
  
 +
[http://arduino.cc/en/Guide/ArduinoYun getting started]
 +
 +
need sorting ->
 +
* http://arduino.cc/en/Tutorial/YunDatalogger
 +
* https://www.temboo.com/arduino/yun/
  
 
=Current Yuns=
 
=Current Yuns=
 
csyun1
 
csyun1
−
*wireless
+
*registered
−
*EC####
+
*configured
−
*159.28.141.140
+
*90A2DAF510F8
 +
*ec2011
 +
*159.28.130.243
 +
*owner: charliep
 +
*OpenWRT v1.0
 +
 
 +
 
 +
csyun2
 +
*registered? (no internet access)
 +
*configured?
 +
*90A2DAF30034
 +
*ec2009
 +
*159.28.130.242
 +
*owner: charliep
 +
*OpenWRT v1.0
 +
 
 +
 
 +
csyun3
 +
*registered
 +
*configured
 +
*90A2DAF210E7
 +
*ec2012
 +
*159.28.130.191
 +
*owner: charliep
 +
*OpenWRT v1.0
 +
 
 +
 
 +
csyun4
 +
*ARC yun
 +
*registered
 +
*configured
 +
*90A2DAF031AC
 +
*ec2016
 +
*159.28.130.63
 +
*owner: charliep
 +
*OpenWRT v1.0
 +
 
 +
 
 +
csyun5
 +
*registered
 +
*configured
 +
*90A2DAF9035F
 +
*ec2017
 +
*159.28.131.13
 +
*owner: charliep
 +
*OpenWRT v1.0
 +
 
 +
 
 +
csyun6
 +
*registered
 +
*configured
 +
*90A2DAF51147
 +
*ec2024
 +
*159.28.131.16
 +
*owner: charliep
 +
*OpenWRT v1.0
 +
 
 +
 
 +
csyun7
 +
*ARC yun
 +
*registered
 +
*configured
 +
*90A2DAF30459
 +
*
 +
*159.28.131.46
 +
*owner: charliep
 +
*OpenWRT v1.0
 +
 
 +
=Details=
 +
 
 +
==Package Manager==
 +
Uses a package manager called opkg. Very similar to apt-get and yum. Has a healthy selection of software.
 +
 
 +
Comes preinstalled with
 +
* python 2.7
 +
* node.js
 +
* vim / nano
 +
 
 +
==Boot==
 +
*The Arduino side boots up almost instantaneously.
 +
*However, the Linux side takes about as long as a normal PC to boot up.
 +
*The white light seems to indicate that the wifi is working as well as other things.
 +
 
 +
==Sketch Upload==
 +
*You can't upload sketches through wifi on ECWireless. It works on normal LANs. (Why?)
 +
*It's normal for the USB to lose connection and to immediately reestablish connection. The Arduino programmable USB seems to be piggybacking on linux as a virtual COM port.
 +
**Sometimes the recognized COM port will change after the first sketch upload. It seems this is due to the linux side swapping to the correct Arduino COM port.
 +
**If the connection is not reestablished (why?) you can use the "USB stops being recognized" bit below.
 +
 
 +
==Serial==
 +
*Serial talks via the Arduino serial monitor
 +
*Bridge establishes communication between Arduino and Linux processors
 +
*Console uses bridge to establish a console (similar to serial) that can be accessed with telent from the Yun's local terminal
 +
 
 +
 
 +
=troubleshooting=
 +
 
 +
 
 +
==Network==
 +
I had trouble getting it on ECWireless.
 +
*I went to go to ITS and had them register the Yuns manually. ITS has registered our Yuns' as "college owned" so that they don't require authentication.
 +
*In the Yun web configuration panel I set them to connect to ECWireless and then was able to ssh to them directly.
 +
*However, I could not upload sketches via wifi. This is due to the configuration of ECWireless.
  
 +
It's possible to get a Yun's IP by uploading a ShellCommand sketch and running the "ifconfig" command.
 +
*very useful when on a non-static IP network
 +
*For example, this could be used to get a Yun's IP address when it's on Guest Wireless.
  
−
=Network=
+
==USB stops being recognized==
−
I had trouble getting it on ECWireless. I had to go to ITS and have them register it manually. I configured the Yun to connect to ECWireless and then was able to ssh to it directly. However, I could not upload sketches via wireless.
+
This fixed my problem: [http://forum.arduino.cc/index.php?PHPSESSID=ap760n6qcp611t7aul8mdve6s3&topic=188101.msg1593444#msg1593444 arduino form]
  
−
In addition each time it is rebooted it loses access to ECWireless. I believe this is because ECWireless is expecting it to log in using my credentials.
+
#nano /usr/bin/run-avrdude
 +
#Change the efuse value from FB to CB
 +
#execute "/usr/bin/run-avrdude /etc/arduino/Caterina-Yun.hex"
  
−
It would be possible to use guest wireless if the Yun told us its IP. (Due to non-static IP addresses on guest wireless.) It could do that by ssh'ing to a server (using keys) and saving its ifconfig.
+
=Temboo=
 +
[http://arduino.cc/en/Guide/ArduinoYun#toc20 Arduino Description of Temboo]
  
−
It's also possible to bypass ECWireless authentication by having ITS configure the device to have greater permissions.
+
[https://temboo.com/arduino/yun/ Temboo Getting Started]

Latest revision as of 07:49, 2 June 2015

Arduino Yun

Crash Course

each Yun

  • is numbered
  • has a designated box
  • has a label on it with its number and the last two octets of its IP address (I.E. cs4 130.63 is csyun4 with the IP 159.28.130.63)
    • 159.28 is Earlham's IP address

Resources

product page

getting started

need sorting ->

Current Yuns

csyun1

  • registered
  • configured
  • 90A2DAF510F8
  • ec2011
  • 159.28.130.243
  • owner: charliep
  • OpenWRT v1.0


csyun2

  • registered? (no internet access)
  • configured?
  • 90A2DAF30034
  • ec2009
  • 159.28.130.242
  • owner: charliep
  • OpenWRT v1.0


csyun3

  • registered
  • configured
  • 90A2DAF210E7
  • ec2012
  • 159.28.130.191
  • owner: charliep
  • OpenWRT v1.0


csyun4

  • ARC yun
  • registered
  • configured
  • 90A2DAF031AC
  • ec2016
  • 159.28.130.63
  • owner: charliep
  • OpenWRT v1.0


csyun5

  • registered
  • configured
  • 90A2DAF9035F
  • ec2017
  • 159.28.131.13
  • owner: charliep
  • OpenWRT v1.0


csyun6

  • registered
  • configured
  • 90A2DAF51147
  • ec2024
  • 159.28.131.16
  • owner: charliep
  • OpenWRT v1.0


csyun7

  • ARC yun
  • registered
  • configured
  • 90A2DAF30459
  • 159.28.131.46
  • owner: charliep
  • OpenWRT v1.0

Details

Package Manager

Uses a package manager called opkg. Very similar to apt-get and yum. Has a healthy selection of software.

Comes preinstalled with

  • python 2.7
  • node.js
  • vim / nano

Boot

  • The Arduino side boots up almost instantaneously.
  • However, the Linux side takes about as long as a normal PC to boot up.
  • The white light seems to indicate that the wifi is working as well as other things.

Sketch Upload

  • You can't upload sketches through wifi on ECWireless. It works on normal LANs. (Why?)
  • It's normal for the USB to lose connection and to immediately reestablish connection. The Arduino programmable USB seems to be piggybacking on linux as a virtual COM port.
    • Sometimes the recognized COM port will change after the first sketch upload. It seems this is due to the linux side swapping to the correct Arduino COM port.
    • If the connection is not reestablished (why?) you can use the "USB stops being recognized" bit below.

Serial

  • Serial talks via the Arduino serial monitor
  • Bridge establishes communication between Arduino and Linux processors
  • Console uses bridge to establish a console (similar to serial) that can be accessed with telent from the Yun's local terminal


troubleshooting

Network

I had trouble getting it on ECWireless.

  • I went to go to ITS and had them register the Yuns manually. ITS has registered our Yuns' as "college owned" so that they don't require authentication.
  • In the Yun web configuration panel I set them to connect to ECWireless and then was able to ssh to them directly.
  • However, I could not upload sketches via wifi. This is due to the configuration of ECWireless.

It's possible to get a Yun's IP by uploading a ShellCommand sketch and running the "ifconfig" command.

  • very useful when on a non-static IP network
  • For example, this could be used to get a Yun's IP address when it's on Guest Wireless.

USB stops being recognized

This fixed my problem: arduino form

  1. nano /usr/bin/run-avrdude
  2. Change the efuse value from FB to CB
  3. execute "/usr/bin/run-avrdude /etc/arduino/Caterina-Yun.hex"

Temboo

Arduino Description of Temboo

Temboo Getting Started

Retrieved from "https://wiki.cs.earlham.edu/index.php?title=Arduino_Yun&oldid=15449"