jfrey
56 linhas
1.4 KiB
Python
56 linhas
1.4 KiB
Python
"""A sample client for the OpenBCI UDP server."""
|
|
|
|
import argparse
|
|
import cPickle as pickle
|
|
import json
|
|
import sys; sys.path.append('..') # help python find open_bci_v3.py relative to scripts folder
|
|
import open_bci_v3 as open_bci
|
|
import socket
|
|
|
|
|
|
parser = argparse.ArgumentParser(
|
|
description='Run a UDP client listening for streaming OpenBCI data.')
|
|
parser.add_argument(
|
|
'--json',
|
|
action='store_true',
|
|
help='Handle JSON data rather than pickled Python objects.')
|
|
parser.add_argument(
|
|
'--host',
|
|
help='The host to listen on.',
|
|
default='127.0.0.1')
|
|
parser.add_argument(
|
|
'--port',
|
|
help='The port to listen on.',
|
|
default='8888')
|
|
|
|
|
|
class UDPClient(object):
|
|
|
|
def __init__(self, ip, port, json):
|
|
self.ip = ip
|
|
self.port = port
|
|
self.json = json
|
|
self.client = socket.socket(
|
|
socket.AF_INET, # Internet
|
|
socket.SOCK_DGRAM)
|
|
self.client.bind((ip, port))
|
|
|
|
def start_listening(self, callback=None):
|
|
while True:
|
|
data, addr = self.client.recvfrom(1024)
|
|
print("data")
|
|
if self.json:
|
|
sample = json.loads(data)
|
|
# In JSON mode we only recieve channel data.
|
|
print data
|
|
else:
|
|
sample = pickle.loads(data)
|
|
# Note that sample is an OpenBCISample object.
|
|
print sample.id
|
|
print sample.channel_data
|
|
|
|
|
|
args = parser.parse_args()
|
|
client = UDPClient(args.host, int(args.port), args.json)
|
|
client.start_listening()
|