Raspberry Pi Forums

Posted: **Fri Jan 08, 2016 9:09 pm**

Hi guys,

What i'm trying to do is connecting an Arduino to my RPi 2 through USB serial port (without USB Hub).
My RPi 2 is running Raspbian Jessie.

The arduino version that I've used is both Arduino Uno and Arduino Nano. With bot i'm having issue finding the serial port.
NB. I'm not using the Arduino IDE. Do I need it to make it works? maybe any driver missing?

Instead the "dmesg" command output this:

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[284803.322999] usb 1-1.2: New USB device found, idVendor=2341, idProduct=0001
[284803.323032] usb 1-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=220
[284803.323048] usb 1-1.2: Product: Arduino Uno
[284803.323065] usb 1-1.2: Manufacturer: Arduino (www.arduino.cc)
[284803.323081] usb 1-1.2: SerialNumber: 752303137333514092E1

And also the lsusb seems to detect it:

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Bus 001 Device 007: ID 2341:0001 Arduino SA Uno (CDC ACM)

But the serial port of Arduino is not listed when executing "ls /dev/tty*" command in console, that returns:

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/dev/tty    /dev/tty19  /dev/tty3   /dev/tty40  /dev/tty51  /dev/tty62
/dev/tty0   /dev/tty2   /dev/tty30  /dev/tty41  /dev/tty52  /dev/tty63
/dev/tty1   /dev/tty20  /dev/tty31  /dev/tty42  /dev/tty53  /dev/tty7
/dev/tty10  /dev/tty21  /dev/tty32  /dev/tty43  /dev/tty54  /dev/tty8
/dev/tty11  /dev/tty22  /dev/tty33  /dev/tty44  /dev/tty55  /dev/tty9
/dev/tty12  /dev/tty23  /dev/tty34  /dev/tty45  /dev/tty56  /dev/ttyAMA0
/dev/tty13  /dev/tty24  /dev/tty35  /dev/tty46  /dev/tty57  /dev/ttyprintk
/dev/tty14  /dev/tty25  /dev/tty36  /dev/tty47  /dev/tty58
/dev/tty15  /dev/tty26  /dev/tty37  /dev/tty48  /dev/tty59
/dev/tty16  /dev/tty27  /dev/tty38  /dev/tty49  /dev/tty6
/dev/tty17  /dev/tty28  /dev/tty39  /dev/tty5   /dev/tty60
/dev/tty18  /dev/tty29  /dev/tty4   /dev/tty50  /dev/tty61

I wonder if someone have ever met this kind of issue..
What should I do? I've not installed the Arduino IDE yet, because what i'm trying to develop shouldn't require it.

Posted: **Fri Jan 08, 2016 10:27 pm**

When I plug my Uno into a RPI2B running Jessie I get

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[814817.853821] usb 1-1.4: new full-speed USB device number 7 using dwc_otg
[814817.968186] usb 1-1.4: New USB device found, idVendor=2341, idProduct=0001
[814817.968218] usb 1-1.4: New USB device strings: Mfr=1, Product=2, SerialNumber=220
[814817.968235] usb 1-1.4: Product: Arduino Uno
[814817.968251] usb 1-1.4: Manufacturer: Arduino (www.arduino.cc)
[814817.968267] usb 1-1.4: SerialNumber: 64935343633351C06280
[814818.025823] cdc_acm 1-1.4:1.0: ttyACM0: USB ACM device
[814818.027162] usbcore: registered new interface driver cdc_acm
[814818.027194] cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters

The driver is /lib/modules/`uname -r`/kernel/drivers/usb/class/cdc-acm.ko

Posted: **Fri Jan 08, 2016 10:39 pm**

may I need to restart the RPi? or apt-get install arduino ?

Posted: **Fri Jan 08, 2016 10:42 pm**

Don't know. Try a reboot.

Posted: **Tue Jul 05, 2016 1:25 pm**

Hello,
I have had the same problem and I still have it. Do you have any idea?
Thank you.

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