![]() read ( size = in_waiting ) # Reset to previous timeout ser. """ # Set timeout to None to make sure we read all bytes previous_timeout = ser. ![]() This is for compatibility with `read_all_newlines()` as a drop-in replacement for this function. Returns - output : bytes Bytes object that contains read_buffer + read. read_buffer : bytes, default b'' Previous read buffer that is appended to. Parameters - ser : serial.Serial() instance The device we are reading from. timeout = timeout def read_all ( ser, read_buffer = b "", ** args ): """Read all available bytes from the serial port and append to the read buffer. read_until () # Print the handshake message, if desired if print_handshake_message : print ( "Handshake message: " + handshake_message. write ( bytes ()) handshake_message = arduino. read_until () # Send and receive request again arduino. write ( bytes ()) # Read in what Arduino sent handshake_message = arduino. read_all () # Send request to Arduino arduino. timeout = 2 # Read and discard everything that may be in the input buffer _ = arduino. sleep ( sleep_time ) # Set a long timeout to complete handshake timeout = arduino. open () # Chill out while everything gets set time. device return port def handshake_arduino ( arduino, sleep_time = 1, print_handshake_message = False, handshake_code = 0 ): """Make sure connection is established by sending and receiving bytes.""" # Close and reopen arduino. manufacturer is not None and "Arduino" in p. Submission of exercises and project write-upsÄef find_arduino ( port = None ): """Get the name of the port that is connected to Arduino.""" if port is None : ports = serial. ![]() Do-it-yourself exercise 6: Etch-A-Sketch. ![]()
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