Hi,

Just finished the nerdkits booklet, and now I'd like to be able to read in that serial stream we sent in the temperature sensor tutorial. I'm using ubuntu, and I can get the data using minicom, but I would like to get it using the serial module of python. It should be very simple, but I get gibberish when I try to read from the serial port in python.

This is my python program

#! /usr/bin/python

import serial

ser = serial.Serial('/dev/ttyUSB0')
print ser
s = ser.read(10)
print s

and this is the output:

Serial<id=0xb759264c, open=True>(port='/dev/ttyUSB0', baudrate=9600, bytesize=8, parity='N', stopbits=1, timeout=None, xonxoff=0, rtscts=0, dsrdtr=0)
����������

Does anyone know why I'm getting �?

Thanks,

Waspinator

Hi Waspinator,

The first clue is that the baud rate is incorrect -- we've set the microcontroller for 115200 by default, so you've got to set the PC-side for the same baud rate.

Try replacing:

ser = serial.Serial('/dev/ttyUSB0')

with

ser = serial.Serial('/dev/ttyUSB0', 115200)

and see if that works.

Mike

Thanks!

I feel like an idiot. I thought I had tried that already, but I guess I didn't. works perfectly now.

Thanks again,

Waspinator