lcd

from RPi import GPIO


class LCD:
    def __init__(self, isVierBits=False, E=20, RS=21, DB7=13, DB6=19, DB5=26, DB4=23, DB3=24, DB2=25, DB1= 12, DB0=16):
        self.isVierBits = isVierBits
        self.RS = RS
        self.DB1 = DB1
        self.DB0 = DB0
        self.DB3 = DB3
        self.E = E
        self.DB2 = DB2
        self.DB5 = DB5
        self.DB4 = DB4
        self.DB7 = DB7
        self.DB6 = DB6
        self.__shortDelay = 1/8
        self.__longDelay = 1
        self.__data_bits = [DB0, DB1, DB2, DB3, DB4, DB5, DB6, DB7]

    def __set_data_bits(self, value):
        for v in range(value):
            GPIO.output(self.E, 0)
            GPIO.output(self.__data_bits[v], value >> v & 1)
            GPIO.output(self.E, 1)

    def __send_instructions(self, value):
        GPIO.output(self.RS, 0)
        self.__set_data_bits(value)

    def send_character(self, value):
        GPIO.output(self.RS, 1)
        self.__set_data_bits(ord(str(value)))
        print(ord(str(value)))

    def init_LCD(self):
        self.initGPIO()
        self.__send_instructions(0b00111000)
        self.__send_instructions(0b00001111)
        self.__send_instructions(0b00000001)

    def initGPIO(self):
        GPIO.setmode(GPIO.BCM)
        GPIO.setup(self.__data_bits, GPIO.OUT)
        GPIO.setup(self.RS, GPIO.OUT)
        GPIO.setup(self.E, GPIO.OUT)

    def write_message(self, value):
        for i in value:
            self.send_character(i)