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Using the raspberry Pi 2 mod B to programming arduino with a usb externally powered hub

e14 Contributor

HI i have started to use a usb externally powered hub due to power demands of arduino and current drops in rpi but when i connect the usb cable from hub to arduino port is not available in ide. I dont understand i mean i tried various things like

> i am in dialout group

> latest usb drivers usbutils

> i checked the lsusb hub seems to work fine

> ohh and one thing i noticed usb keyboard or mouse or anyother HID device wont work with rpi when pluged into USB hub but storage devices like external HDD and flash drives work with hub // hub is fine tho i checked it on other system it works fine.

> my config : rpi 2 mod b+ 1GB( 2.1 A power supply)  /  OS debian (arm kali linux)  / 2 HID's 1 USB hub (connected)

i dont understand how do i make it work?

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  • 0

    Rpi is running from a 2.5A wall adapter but arduino is not running off wall but my usb hub can handle upto 2.5 A at each port cus my arduino powers up fine with usb hub it just wont show up in /dev/tty% also same case with keyboard and mouse.

  • 0 in reply to e14 Contributor

    I just connected an Arduino to my pi, directly to one of the usb ports and it showed up as

     

    /dev/ttyACM0

     

    I was able to verify this by typing

     

    dmesg

     

    and the last lines of the output were

     

    [682106.515303] usb 1-1.2: new full-speed USB device number 5 using dwc_otg

    [682106.630515] usb 1-1.2: New USB device found, idVendor=2341, idProduct=0043

    [682106.630544] usb 1-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=220

    [682106.630562] usb 1-1.2: Manufacturer: Arduino (www.arduino.cc)

    [682106.630578] usb 1-1.2: SerialNumber: 64938323131351B03152

    [682106.671443] cdc_acm 1-1.2:1.0: ttyACM0: USB ACM device

    [682106.672543] usbcore: registered new interface driver cdc_acm

    [682106.672561] cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters

     

    after connecting via a hub dmesg reported

     

    [682271.507115] usb 1-1.2: Product: USB 2.0 Hub

    [682271.508130] hub 1-1.2:1.0: USB hub found

    [682271.508334] hub 1-1.2:1.0: 4 ports detected

    [682279.806345] usb 1-1.2.3: new full-speed USB device number 8 using dwc_otg

    [682279.940367] usb 1-1.2.3: New USB device found, idVendor=2341, idProduct=0043

    [682279.940395] usb 1-1.2.3: New USB device strings: Mfr=1, Product=2, SerialNumber=220

    [682279.940413] usb 1-1.2.3: Manufacturer: Arduino (www.arduino.cc)

    [682279.940429] usb 1-1.2.3: SerialNumber: 64938323131351B03152

    [682279.941874] cdc_acm 1-1.2.3:1.0: ttyACM0: USB ACM device

     

    so /dev/ttyACM0 would be the device I would tell the arduino ide to communicate through

     

    btw, using raspbian, I was able to do

     

    sudo apt-get install arduino

     

    to install the ide. It's an older version, but it should meet most needs.

     

    Mike

Reply
  • 0 in reply to e14 Contributor

    I just connected an Arduino to my pi, directly to one of the usb ports and it showed up as

     

    /dev/ttyACM0

     

    I was able to verify this by typing

     

    dmesg

     

    and the last lines of the output were

     

    [682106.515303] usb 1-1.2: new full-speed USB device number 5 using dwc_otg

    [682106.630515] usb 1-1.2: New USB device found, idVendor=2341, idProduct=0043

    [682106.630544] usb 1-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=220

    [682106.630562] usb 1-1.2: Manufacturer: Arduino (www.arduino.cc)

    [682106.630578] usb 1-1.2: SerialNumber: 64938323131351B03152

    [682106.671443] cdc_acm 1-1.2:1.0: ttyACM0: USB ACM device

    [682106.672543] usbcore: registered new interface driver cdc_acm

    [682106.672561] cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters

     

    after connecting via a hub dmesg reported

     

    [682271.507115] usb 1-1.2: Product: USB 2.0 Hub

    [682271.508130] hub 1-1.2:1.0: USB hub found

    [682271.508334] hub 1-1.2:1.0: 4 ports detected

    [682279.806345] usb 1-1.2.3: new full-speed USB device number 8 using dwc_otg

    [682279.940367] usb 1-1.2.3: New USB device found, idVendor=2341, idProduct=0043

    [682279.940395] usb 1-1.2.3: New USB device strings: Mfr=1, Product=2, SerialNumber=220

    [682279.940413] usb 1-1.2.3: Manufacturer: Arduino (www.arduino.cc)

    [682279.940429] usb 1-1.2.3: SerialNumber: 64938323131351B03152

    [682279.941874] cdc_acm 1-1.2.3:1.0: ttyACM0: USB ACM device

     

    so /dev/ttyACM0 would be the device I would tell the arduino ide to communicate through

     

    btw, using raspbian, I was able to do

     

    sudo apt-get install arduino

     

    to install the ide. It's an older version, but it should meet most needs.

     

    Mike

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