# -*- coding: utf-8 -*- """ version 1.0 2025/09/02 magelland 9800i scanner/scale todo: to exe win linux to get status? setup guide improve done work in windows check config file no lb kg oz @author: KL """ import serial import time import re import os from datetime import datetime from pynput.keyboard import Key, Controller keyboard = Controller() print(str(datetime.now().strftime("%Y-%m-%d %H:%M:%S"))+' Program starting .........') time.sleep(2) statusZ={'30':'scaleNotReady','31':'NonStableWeight','32':'OverWeight30','33':'stableZero','34':'stableNonZero','35':'weightSent'}; def scaleStatus(ser): ser.write(str.encode("i")) #status print((' getting scale status ...')) time.sleep(.1) x=ser.readline() #print(x) l=len(x) #print("length: "+str(l)) x=getBarcode(x).encode('UTF-8') #print(x) #print("returned length: "+str(len(x))) yy=x.hex(); #print(yy) v=yy[4:6] w=yy[6:8] x=yy[8:10] y=yy[10:12] z=yy[12:14] print(' v:'+str(v) +' w:'+str(w) +' x:'+str(x) +' y:'+str(y) +' z:'+str(z) ) try: print(statusZ[z]) except Exception as e: print(str(datetime.now().strftime("%Y-%m-%d %H:%M:%S"))+" statusVWZ key error: "+str(e)) #flog.writelines(str(datetime.now().strftime("%Y-%m-%d %H:%M:%S"))+' statusVWZ key error: '+str(e)+'\n') time.sleep(1) def restart(): import sys print(" program restarting in 2 sec ... ") time.sleep(2) import os os.execv(sys.executable, ['python'] + sys.argv) preweight=0 def scaleMonitor(ser,preweight=0): ser.write(str.encode("\x53\x31\x34\x0d")) #to get weight print(('Command sent ...')) time.sleep(.1) x=ser.readline() print('raw data readline') print(x) #dual cable W #b'\x02000.00\r' #b'\x02?A\x02000.00\r' #single cable #b'S1440128\r' #b'S141\rS08A818574027473\r' #b'S08A818574027473\rS1440332\r' #b'S08A693493010740\rS1440003\r' #b'S08A049578993741\rS1440004\r' #b'S08E08066145\rS1440002\r' #b'S08E07820401\rS1440004\r' #b'S1440004\rS08F4710126456921\r' x=getBarcode(x).encode('UTF-8') l=len(x) print(x) print(" x length: "+str(l)) if( l==0 ): print(" x len 0 , return") return preweight yy=x.hex(); print(yy) print('above hex value') decoded = x.decode('utf-8') #b'S1440128\r' //single cable match = re.search(r'S144(\d{4})\r', decoded) if match: weight = match.group(1) else: print("No match found.") return 0 print(" raw Weight: "+ weight) weight=str(float(weight)/100) print(str(datetime.now().strftime("%Y-%m-%d %H:%M:%S"))+" WEIGHT: "+weight) if(weight!=preweight): typeStr(weight) preweight=weight print(" ") print("return preweight " + preweight) return preweight def typeStr(result): print("to delete first " ) for i in range(20): keyboard.press(Key.backspace) keyboard.release(Key.backspace) print("to type: " + result) keyboard.type(result) def getBarcode(data): #b'S141\rS08A818574027473\r' #b'S08A818574027473\rS1440332\r' #print("to match: "+str(data)); #UPCA, UPCE, EAN13, Code128, O2. #Code128 pattern = r'S08B3(\d{3,13})\r' barcodes = re.findall(pattern, data.decode('latin1')) if(len(barcodes)==0): #UPC-A pattern = r'S08A(\d{5,13})\r' barcodes = re.findall(pattern, data.decode('latin1')) if(len(barcodes)==0): #UPC-E pattern = r'S08E(\d{7,8})\r' barcodes = re.findall(pattern, data.decode('latin1')) if(len(barcodes)==0): #EAN13 pattern = r'S08F(\d{13})\r' barcodes = re.findall(pattern, data.decode('latin1')) for barcode in barcodes: barcode = re.sub(r'[a-zA-Z]', '', barcode) if len(barcode) == 11 and barcode.startswith('2'): barcode = barcode + '5' print(str(datetime.now().strftime("%Y-%m-%d %H:%M:%S"))+" barcode found:", barcode) typeStr(barcode) time.sleep(0.3) remaining_string = re.sub(pattern, '', data.decode('latin1')) #print("Remaining string:", remaining_string) return remaining_string preweight=0 while True: try: #flog = open('log.txt', 'a') #flog.write(str((datetime.now())) +' Program started .........\n') file_path = 'config.txt' if os.path.exists(file_path): fconfig = open('config.txt', 'r') activePort=fconfig.readline().strip() unit=fconfig.readline().strip().lower() if(unit==''): unit='lb' print(str(datetime.now().strftime("%Y-%m-%d %H:%M:%S"))+" config unit: " + unit) fconfig.close() print("File exists.") else: activePort='COM1' unit='lb' count=0 weight=0 comFail=True while(comFail): try: ser = serial.Serial( port=activePort,\ baudrate=9600,\ parity=serial.PARITY_EVEN,\ stopbits=serial.STOPBITS_ONE,\ bytesize=serial.SEVENBITS,\ timeout=0) #flog.write('Open port: '+ activePort+' Successful\n') print(str(datetime.now().strftime("%Y-%m-%d %H:%M:%S"))+' Open port: '+ activePort+' Successful\n') comFail=False except Exception as e: print("****************************") print(str(datetime.now().strftime("%Y-%m-%d %H:%M:%S"))+ " open COM "+activePort+" error occured: "+str(e)) print(" will try again in 10 seconds **************************** ") time.sleep(3) #flog.write(str(datetime.now().strftime("%Y-%m-%d %H:%M:%S"))+ " error occured: "+str(e)+'\n') #flog.write('Open port: '+ activePort+ ' FAILED. \n') comFail=True pattern= "could not open port" if(re.search(pattern,str(e))): print(pattern) restart() time.sleep(10) #scaleStatus(ser) preweight=0 while True: count=count+1 preweight=scaleMonitor(ser,preweight) time.sleep(0.3) break except KeyboardInterrupt: print(str(datetime.now().strftime("%Y-%m-%d %H:%M:%S"))+" User abort. Exiting...") ser.close() #flog.close() time.sleep(.1) exit() except Exception as e: print(str(datetime.now().strftime("%Y-%m-%d %H:%M:%S"))+" error 3: "+str(e)) #flog.writelines(str(datetime.now().strftime("%Y-%m-%d %H:%M:%S"))+' statusVWZ key error: '+str(e)+'\n') time.sleep(3) ser.close() #flog.close() exit()