Wheelchair Control via N95

[tarek_taha]

Hi guys,

I am a researcher working on some assistive devices for severely disabled people. Currently i have an autonomous wheelchair that drives itself and avoids obstacles, the user gives indication on where he is going, through discrete joystick inputs. I am planning to use the accelerometer capabilities in the N95 to replace the joyStick and make it even easier to control the wheelchair for users with tremors or shaky hands.
Here goes my question: I want to be able to connect to the N95 using the WLAN and transmit the accelerometer readings to a P.C that will process it and plans a path for navigation. I already found some cool libraries for reading the accelerometer but i couldn't get anything about how to connect and transmit data using Wifi. Can anyone please guide me on how to achieve this, a sample code would be of great help, i can learn very well through examples.

Thanks in advance for anyone that can help

[petrib]

TCP/IP sockets, or even higher-level protocols like HTTP.

See the Chat and Webclient examples in the SDK for starters.

[tarek_taha]

here what i ended up doing:

Server P.C:

import sys, socket
host='192.168.0.100'
port=1024

# create the server socket
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.bind( (host, port) )
s.listen(5) # start the server socket
print "waiting of the client to connect:"
(client, address) = s.accept()
print "accepted connection from %s:%d" % (address[0], address[1])
while True:
	data = client.recv(1024)
	if len(data) == 0:
		print "connection with %s closed." % address[0]
		break
	sys.stdout.write(data)
client.close()

Client N95:

import socket
import sys
import e32

import axyz

host='192.168.0.100'
port=1024

s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
print "trying to connect to socket:"
s.connect( (host, int(port) ) )

#def sendData(x,y,z):
#  print "x: %i y: %i z: %i"%(x,y,z)

s.send('Test')
axyz.connect(sendData)
print "connected. Sending Accelerometer Data."

e32.ao_sleep(30)

print "closing connection with server"
c.close()
axyz.disconnect()

but for some reason it doesn't seem to work, i am using an Ad-Hoc connection with my laptop which has an i.p of 192.168.0.100, is there anything i am doing wrong ?