Hello guys, i'm new here. i have a fingerprint UART reader and i wanna communicate with it through serial port.
To set the serial port configuration i used this command:
stty -F /dev/ttyUSB0 cs8 -cstopb -ixon raw speed 19200
To send command to the device:
perl -e'print "\xF5\x01\x00\x01\x03\x00\x03\xF5"'>/dev/ttyUSB0
To retrieve the data from the device and put it into .txt file:
cat </dev/ttyUSB0 > output.txt
problem: i got the incorrect format for the output which is this =>> . i've attahced the photo along with this thread( the output in the image quite blur, is actually /F5/'box'/00/00/00/00/'box'/F5)
p/s: its HEX input and output. whenever i get 01,02.03 or other than 00,then it will appear as boxes. please help me experts!