ser = serial.Serial('/dev/ttyUSB0', 38400, timeout=1)
read = ser.read(X)
import timeimport serial, sys, os# configure the serial connections (the parameters differs on the device you are connecting to)ser = serial.Serial(4, baudrate=9600, timeout=100)ser#ser.open()ser.isOpen()print 'Enter your commands below.\r\nInsert "exit" to leave the application.'input=1while 1 : # get keyboard input input = raw_input(">> ") # Python 3 users # input = input(">> ") if input == 'exit': ser.close() exit() else: # send the character to the device # (note that I happend a \r\n carriage return and line feed to the characters - this is requested by my device) ser.write(input + '\r\n') out = '' # let's wait one second before reading output (let's give device time to answer) time.sleep(1) while ser.inWaiting() > 0: out += ser.read(1) if out != '': print ">>" + out
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