Re: [Tutor] Python Serial Communication

2014-09-29 Thread Steven D'Aprano
On Sun, Sep 28, 2014 at 05:32:26PM +0800, m.v gautam wrote: > Hi, > I am trying out serial communication between raspberry pi and atmega 32 using > pyserial module . I have tried serial communication between two atmega and it > is working. > But when I try it rpi and atmega I get blank lines as o

Re: [Tutor] Python Serial Communication

2014-09-29 Thread Steven D'Aprano
On Mon, Sep 29, 2014 at 12:58:09PM +0100, Alan Gauld wrote: [...] > How do you know that val is not a blank line? > Remember that a blank line is not necessarily empty, it might be full of > unprintable characters. > > Try this instead: > > while True: > print "try" > val = ser.read(10

Re: [Tutor] Python Serial Communication

2014-09-29 Thread Alan Gauld
On 28/09/14 10:32, m.v gautam wrote: import serial ser = serial.Serial('/dev/ttyAMA0',38400,timeout = 10) while True: print "try" val = ser.read(10) print val There is a blank line being printed every time in place of val. How do you know that val is not a blank l

[Tutor] Python Serial Communication

2014-09-29 Thread m.v gautam
Hi, I am trying out serial communication between raspberry pi and atmega 32 using pyserial module . I have tried serial communication between two atmega and it is working. But when I try it rpi and atmega I get blank lines as output. My python code is import serial ser = serial.Serial('/dev/tty