I am trying to read input from a Electronic weighing scale (Weigh sensor) connected to Ubuntu enabled UDOO board using a Prolific PL2303 serial converter cable (CA-US9), but am unable to read any input from the sensor. To monitor the input I have tried using (Coolterm & GTKTerm), assuming an issue with the driver I have referred and tried updating the DTR line as the solutions suggested in the following stack overflow resources Reference 1,Reference 2,Reference 3.
I have tied the same on the ubuntu based computer too but the issue remain the same. Using the dmesg command i was able to check that the device has been detected properly when connected. The output to the command executed as dmesg | tail is as follows :
[ 7365.393110] usb 1-3: new full-speed USB device number 53 using xhci_hcd
[ 7365.542407] usb 1-3: New USB device found, idVendor=067b, idProduct=2303, bcdDevice= 4.00
[ 7365.542424] usb 1-3: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 7365.542437] usb 1-3: Product: USB-Serial Controller D
[ 7365.542448] usb 1-3: Manufacturer: Prolific Technology Inc.
[ 7365.545546] pl2303 1-3:1.0: pl2303 converter detected
[ 7365.552313] usb 1-3: pl2303 converter now attached to ttyUSB0
[ 7373.296214] usb 1-3: USB disconnect, device number 53
[ 7373.297492] pl2303 ttyUSB0: pl2303 converter now disconnected from ttyUSB0
[ 7373.297644] pl2303 1-3:1.0: device disconnected
The device remains connected physically but seems disconnected by the command output, Also please suggest how to find the port id for the serial port connected.
