[PythonCE] Accessing serial port with PythonCE 2.5

[Rushali Watane]

Steve (Gadget) Barnes <gadgetsteve <at> hotmail.com> writes:

> 
> 
> On 15/12/2015 06:41, Rushali Watane wrote:
> > David Goncalves <pythonce-ml <at> lestat.st> writes:
> > 
> >>
> >> Hi,
> >>
> >> Stefan Johansson wrote:
> >>> You can find a link to ceserial in the archives:
> >>> http://mail.python.org/pipermail/pythonce/2006-
September/001589.html
> >>> I have used it successfully on my Dell Axim.
> >>
> >> Thanks a lot for that link.
> >>
> >> I downloaded CeSerial and started to listen to my serial port
> >> only with 3 lines of code ;)
> >>
> >> Regards.
> >>
> > Hi,
> > 
> > I have also downloaded ceSerial and successfully communicate with 
serial 
> > ports. I have successfully write the data to the port but I am not 
able 
> > to read the data from the ports. It is getting connected to the port 
but 
> > it is not able to read the values. Below is my code snippet for 
reading 
> > the data from the port.
> > 
> > Can you help me to solve this issue.
> > 
> > from time import sleep
> > import ceserial
> > 
> > ser = 
> > 
ceserial.Serial(port="COM1:",baudrate=9600,bytesize=8,stopbits=ceserial.
> > STOPBITS_ONE,parity=ceserial.PARITY_EVEN)
> > 
> > print("connected to: " + ser.portstr)
> > 
> > #data = ''
> > while True:
> >     data = ser.read(9999)
> >     if len(data) > 0:
> >         print 'Got:', data
> >     sleep(0.5)
> >     #print 'not blocked'
> > 
> > ser.close()
> > 
> > Regards
> > Rushali
> > 
> > 
> > 
> > 
> > _______________________________________________
> > PythonCE mailing list
> > PythonCE <at> python.org
> > https://mail.python.org/mailman/listinfo/pythonce
> > 
> 
> Hi,
> 
> You seem to be missing the essential steps of ser.open() before trying
> to read and ser.close() at the end.

Hi

I have open the port before trying to read the data but it shows only 
output as-
connected to:COM1 
Got:
It is get connected to the serial port but not able to read the values 
from the port. I am sending you the my updated code snippet. please tell 
me the solution for it.

from time import sleep
import ceserial

ser = 
ceserial.Serial(port="COM5:",baudrate=9600,bytesize=8,stopbits=ceserial.
STOPBITS_ONE,parity=ceserial.PARITY_EVEN)

print("connected to: " + ser.portstr)
ser.open()
#data = ''
while True:
    n = ser.inWaiting()
    size = n
    data = ser.readline(size)
    if len(data) > 0:
     print 'Got:', data
     sleep(0.5)
    #print 'not blocked'
ser.close()

Regards
Rushali