Send bytes in Python with serial

Question

I'm trying to send 10 bits thought raspberry pi USB port splitting them in two bytes and manipulating the first for identifying it with this code:

import serial
ser = serial.Serial(
    port='/dev/ttyACM0',
    baudrate = 38400,
    parity=serial.PARITY_NONE,
    stopbits=serial.STOPBITS_ONE,
    bytesize=serial.EIGHTBITS,
    timeout=1
    )

while 1:
    val=input()

    a= bytes((val>>8) | 0xA0)
    a1=bytes(val & 0x00ff)

    ser.write(a)
    ser.write(a1)

but it seems to send the ASCII code instead of the binary data and I don't find a way to solve the problem! Can anybody help me please?? Thanks a lot!

James · Accepted Answer · 2016-05-09 16:36:28Z

1

I've now solved the problem, the right code is:

val=input()

a= chr((val>>8) | 0xA0)
a1=chr(val & 0x00ff)

ser.write(a)
ser.write(a1)

answered May 9, 2016 at 16:36

James

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