hc_ttl.py

import board
import busio



""" Allow to listen from on UART and write to another UART """    
class HCTTL:
    def __init__(self):
        ################ UART DEFINITION ################
        # UART0 is used for TTL communication with your computer as Serial Port
        self.uart0_ttl = busio.UART(board.GP0, board.GP1, baudrate=9600, bits=8, parity=None, stop=1)
        # UART1 is used for communication with the HC-05 Bluetooth with Android and Quest3
        self.uart1_hc05 = busio.UART(board.GP4, board.GP5, baudrate=9600, bits=8, parity=None, stop=1)
        self.char_left = ' '
        self.char_right = ' '
        
    def push_text_to_hc05(self, text:str, end_line=True):
        if end_line:
            self.uart1_hc05.write(bytes(text + "\n", "utf-8"))
        else:
            self.uart1_hc05.write(bytes(text, "utf-8"))

    def push_text_to_ttl(self, text:str, end_line=True):
        if end_line:
            self.uart0_ttl.write(bytes(text + "\n", "utf-8"))
        else:
            self.uart0_ttl.write(bytes(text, "utf-8"))

    def read(self):
        return self.uart1_hc05.read()

    def write(self, data):
        self.uart0_ttl.write(data)
        
    def get_double_char(self):
        return self.char_left, self.char_right
    
    def is_char_right_digit(self):
        return self.char_right.isdigit()
    def get_char_left(self):
        return self.char_left
    def get_char_right(self):
        return self.char_right
    
    def read_and_return_if_right_is_digit(self):      
        
        ## I consider that you use only once UART at the same time"""                  
        b= None
        if self.uart0_ttl.in_waiting > 0:
            b = self.uart0_ttl.read(1)
            if b:
                self.uart0_ttl.write(b)
                
        if self.uart1_hc05.in_waiting > 0:
            b = self.uart1_hc05.read(1)
            if b:
                self.uart1_hc05.write(b)
        
        if b:
            print(b)
            try:
                c = b.decode('utf-8')
                self.char_left=self.char_right
                self.char_right=c
                return c.isdigit()
            except Exception as e:
                print("An error occurred:", e)
        
        return False