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31  Products / Arduino Yún / Re: arduino yun motor shield on: November 27, 2013, 02:30:43 pm
Hi

sorry but it's very hard to understand your question... se sei italiano scrivi in italiano che poi traduciamo  smiley-wink
32  Products / Arduino Yún / Re: External Interrupts with I2c on: November 27, 2013, 02:25:44 pm
Well, I never used them but you can find some libraries that implement i2c in software, without using interrupts so you're free to choose all the available PINs.

For example:
http://forums.adafruit.com/viewtopic.php?f=25&t=13722

let us know how they work!
33  Products / Arduino Yún / Re: RS232 on arduino Yun on: November 27, 2013, 02:21:36 pm
Hi Sandro

sorry for the late... my suggestion is to choose an adapter that uses FTDI chips, for example the FT232R

You need only to install the correct kernel module:
Code:
opkg install kmod-usb-serial-ftdi

and you're done! I'm going to post a tutorial on my blog, using dmesg you can check if everything was ok:

Code:
[  366.100000] usb 1-1.1: new full-speed USB device number 5 using ehci-platform
[  366.230000] usb 1-1.1: New USB device found, idVendor=0403, idProduct=6001
[  366.230000] usb 1-1.1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[  366.240000] usb 1-1.1: Product: FT232R USB UART
[  366.240000] usb 1-1.1: Manufacturer: FTDI
[  366.240000] usb 1-1.1: SerialNumber: A1000Npm
[  440.910000] usbcore: registered new interface driver ftdi_sio
[  440.910000] usbserial: USB Serial support registered for FTDI USB Serial Device
[  440.910000] ftdi_sio 1-1.1:1.0: FTDI USB Serial Device converter detected
[  440.920000] usb 1-1.1: Detected FT232RL
[  440.920000] usb 1-1.1: Number of endpoints 2
[  440.920000] usb 1-1.1: Endpoint 1 MaxPacketSize 16384
[  440.920000] usb 1-1.1: Endpoint 2 MaxPacketSize 16384
[  440.930000] usb 1-1.1: Setting MaxPacketSize 64
[  440.930000] usb 1-1.1: FTDI USB Serial Device converter now attached to ttyUSB0
34  Products / Arduino Yún / Re: cant upload via wifi on: November 24, 2013, 04:33:25 pm
very strange... the error you get seems suggest that something during the compiling phase went wrong and the hex file was not created. No errors from the IDE before the one you posted?

Enable the verbose mode (FIle - Preferences) and make a new try...
35  Products / Arduino Yún / Re: arduino yun use with icomsat 900 on: November 24, 2013, 04:29:47 pm
Hi

could you please post a link for the shield you're using and for the GSM library?
36  Products / Arduino Yún / Re: cant upload via wifi on: November 24, 2013, 04:09:30 am
Hi

are you running the IDE on Linux? Does Uploading via USB work?
37  Products / Arduino Yún / Re: Unable to load files on to sd card on: November 23, 2013, 04:34:04 am
Hi

the SD card is correctly found (sda1)... but Linino won't create the link /www/sd if it doesn't find the correct folder structure on your SD:

http://www.lucadentella.it/2013/11/12/yun-utilizziamo-una-scheda-sd/
38  Products / Arduino Yún / Re: Problem programming cron tasks in YUN on: November 22, 2013, 03:37:33 am
mamu,

the crond used in Linino does not support the tag "@reboot"
bye
39  Products / Arduino Yún / Re: Unable to load files on to sd card on: November 22, 2013, 03:36:29 am
Hi Valerin

try connecting to the Yun using SSH, remove and insert again the SD card and send us the output of the dmesg command
40  Products / Arduino Yún / Re: Display RealTime Servo Rotation on Web on: November 21, 2013, 02:27:51 pm
mmm you're asking for data every 15ms  smiley-eek (setInterval function in your html page) but your arduino code has a lot of delays... during the delay it can't answer to the incoming requests and I think this is why it's so laggy!

Do you need a webpage to change the servo position or something that simply displays the actual position?

41  Products / Arduino Yún / Re: Problem programming cron tasks in YUN on: November 21, 2013, 02:23:09 pm
you're right, I didn't notice the "root" in front of your command!
42  Products / Arduino Yún / Re: Arduino Yun resloving Host Errors on: November 21, 2013, 02:22:29 pm
glad you solved it!  smiley-wink
43  Products / Arduino Yún / Re: Questions about yun on: November 21, 2013, 09:21:28 am
Hi Spot

I don't think Linino can support a full JVM, maybe a "light" one can be run on it; for example I read about a user that was able to compile and run JavVM on OpenWRT:
http://jamvm.sourceforge.net

a different approach I may suggest if you like to develop in java is to compile your code to a full binary executable (= no need for a JVM) using GCJ, as explained in the following article:
http://www.linuxjournal.com/article/8757

bye

44  Products / Arduino Yún / Re: Problem programming cron tasks in YUN on: November 21, 2013, 09:16:16 am
Hi

probably the cron daemon included in the Linino distribution does not support the @reboot macro...
Morover, the correct cron syntax is

minute hour day month day-of-week

so 12 35 is wrong if you meant to schedule that task at 12:35, the correct entry should be

35 12 * * *
45  Products / Arduino Yún / Re: RS232 on arduino Yun on: November 20, 2013, 02:50:22 pm
Hi Sandro

sorry I misunderstood your request... Arduino Yun can emulate a serial port on the USB connection and therefore "talk" to a usb host device (like your PC) through a serial connection, like in this example:
http://arduino.cc/en/Tutorial/YunSerialTerminal

but it's not a "real" serial port you can directly connect to a serial device...
A simple solution is to use an usb->serial cable connected to the USB "host" port of the Yun... the port is managed by Linino.
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