Htykuut

Is it possible to strip my string and pull out specify characters in python? My incoming data string is something like <STX>000000kg<ETX> I know I could do ser.read[X:X] but is there a better way of doing it? I have tried multiple methods.

My code:

import time

import serial

import I2C_LCD_driver

import re



mylcd = I2C_LCD_driver.lcd()



print ("Starting Program")

ser = serial.Serial("/dev/ttyUSB0", baudrate=9600,

                    parity=serial.PARITY_NONE,

                    stopbits=serial.STOPBITS_ONE,

                    bytesize=serial.EIGHTBITS

                    )

time.sleep(0.5)

try:

    ser.write("nRr".encode('utf-8'))

    print ("data echo mode enabled")

    while True:

        if ser.inWaiting() > 0:

            data = re.sub(b'[0-9]',"", ser.read())

            print ("Weight", data.decode())

            mylcd.lcd_display_string("Weight", 1)

            mylcd.lcd_display_string(data.decode(), 1,7)











except KeyboardInterrupt:

    print ("Exiting Program")



except:

    print ("Error Occurs, Exiting Program")



finally:

    ser.close()

    pass