I'm trying to open a Serial communication between a Raspberry Pi 3 (model B, running on Raspbian) and a device (a traffic counter to be precise).
I've a USB to Serial cable, using the rs232 standard. (so I'm not using the GPIO)
My goal is to be able to open a serial communication between this device and my rpi3 using python and the pyserial library.
(on windows everything works fine, I open a COMx port and I can then communicate with the device)
When I plug my Serial to USB cable, the rpi3 don't even create a
ttyUSB0 device. What is going on ? How could I open a serial communication in python ?
dmesg -w [ 3482.730866] usb 1-1.4: new full-speed USB device number 9 using dwc_otg [ 3482.891077] usb 1-1.4: New USB device found, idVendor=0403, idProduct=9bf0 [ 3482.891093] usb 1-1.4: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 3482.891102] usb 1-1.4: Product: TrafficCounter USB Adapter [ 3482.891110] usb 1-1.4: Manufacturer: TrafficCounter [ 3482.891118] usb 1-1.4: SerialNumber: FTVNFDLZ
If I run a
glob.glob('/dev/tty[A-Za-z]*') I obtain: ['/dev/ttyS0', '/dev/ttyAMA0', '/dev/ttyprintk']
And I can see my device with lsusb:
lsusb Bus 001 Device 009: ID 0403:9bf0 Future Technology Devices International, Ltd