MultiWii

I want to implement multiwii serial protocol by pyserial

import pyserial
import struct
ser = serial.Serial('/dev/ttyUSB0', 115200)
str = struct.pack('!cccBBB', 'M', '$', '<', 0, 100, 155) # simple MSP_IDENT
print ser.write(str)
print ser.read(3)


above program hang in ser.read.....can you help me?

i sloved it self


import pyserial
import struct
ser = serial.Serial('/dev/ttyUSB0', 115200)
str = struct.pack('cccBBB', '$', 'M', '<', 0, 100, 100) # simple MSP_IDENT
print ser.write(str)
ser.flush()
print ser.read(3)