Arduino.py

import sys
import serial
from serial import Serial
from serial.tools.list_ports import comports
from time import sleep

a=["0","1","2","3","4","5","6","7","8","9",":",";","<","=",">","A","B","C","D"]
class Initialization:
    def __init__(self):
        pass
        
    def locateport(self):
        if sys.platform.startswith('win'):
            port =''
            ports = list(comports())
            for i in ports:
                for j in i:
                    if 'SERIAL' in j:
                        port = i[0]
        elif sys.platform.startswith('linux'):
            b=[]
            port =''
            ports = list(comports())
            for i in range(len(ports)):
                for x in range(7):
                    portname="/dev/ttyACM"+str(x)
                    if ports[i][0]==portname:
                        b.append(ports[i][0])
            port=b[0]
        return port
    
    def open_serial(self,ard_no, PortNo,baudrate):
        #global ser
        if PortNo =='':
            sys.exit("aa..error..! arduino not found")
        else:
            self.ser = Serial(PortNo,baudrate)
        sleep(2)
        # self.checkfirmware()
        
    def close_serial(self):
        #global ser     
        self.ser.close()
    
    def checkfirmware(self):
        print ("Check Firm Ware")
        #global ser
        i = 0
        while i < 3:
            self.ser.write(bytes([118])) #chr(118)
            try: 
                x=self.ser.read(2)
                print(x.decode('UTF-8'))
            except:
                sys.exit("aa..! error..! it seems correct firmware not loaded")
            i = i + 1
    
        
class Arduino(Initialization):
    def __init__(self):
        print ("Init Arduino")
    
    def cmd_digital_out(self,ard_no,pin,val):
        cmd=""
        a=["0","1","2","3","4","5","6","7","8","9",":",";","<","=",">","A","B","C","D"]   
        cmd="D"+"a"+a[pin]+"1"    
        self.ser.write(cmd.encode('utf-8'))
        cmd=""
        cmd="D"+"w"+a[pin]+str(val)
        self.ser.write(cmd.encode('utf-8'))
        
    def cmd_digital_in(self,ard_no,pin):
        b=[]
        cmd=""
        a=["0","1","2","3","4","5","6","7","8","9",":",";","<","=",">","A","B","C","D"]   
        cmd="D"+"a"+a[pin]+"0"    
        self.ser.write(cmd.encode('utf-8'))
        cmd=""
        cmd="D"+"r"+a[pin]
        self.ser.write(cmd.encode('utf-8'))
        a=self.ser.read()
        return(a.decode('UTF-8'))
    
    def cmd_analog_in(self,ard_no,pin):
        cmd=""
        a=["0","1","2","3","4","5","6","7","8","9",":",";","<","=",">","A","B","C","D"]    
        cmd="A"+a[pin]    
        self.ser.write(cmd.encode('utf-8'))
        analog_times=[]
        b1=ord(self.ser.read(1))
        b2=ord(self.ser.read(1))
        a=b1+b2*256
        return(a)
        
        
    def cmd_analog_out(self,ard_no, pin, val):
        a=["0","1","2","3","4","5","6","7","8","9",":",";","<","=",">","A","B","C","D"]
        cmd = "W" + a[pin] + chr(val)
        self.ser.write(cmd.encode('utf-8'))

    def lcd_out(self,ard_no,st,rs, en, d4, d5, d6, d7):
        a=["0","1","2","3","4","5","6","7","8","9",":",";","<","=",">","A","B","C","D"]
        st='L'+ a[rs]+ a[en]+ a[d4]+ a[d5]+ a[d6]+ a[d7] + st
        self.ser.write(st.encode('utf-8'))

    def wifi_out(self,ard_no,st,rx,tx):
        a=["0","1","2","3","4","5","6","7","8","9",":",";","<","=",">","A","B","C","D"]
        st='E'+ a[rx]+ a[tx]+ st
        self.ser.write(st.encode('utf-8'))