126 lines
4.0 KiB
Python
126 lines
4.0 KiB
Python
#!/usr/bin/python
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# -*- coding: utf-8 -*-
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# This file is part of sensors2osc package
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#
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# sensors2osc is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# sensors2osc is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with sensors2osc. If not, see <http://www.gnu.org/licenses/>.
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#
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# Copyright (C) 2014 Stefan Kögl
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from __future__ import absolute_import
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import time, select, sys
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from datetime import datetime
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from sensors2osc.common import *
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class RingBuffer(object):
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def __init__(self, length):
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self.length = length
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self.ring_buf = list()
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self.reset()
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def reset(self):
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self.ring_buf = [-1] * self.length
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self.head = 0
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def append(self, value):
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self.ring_buf[self.head] = value
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self.head = (self.head + 1) % self.length
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def getData(self):
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#print "getData", self.ring_buf, self.head
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data = list()
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for i in range(self.length + 1, 1, -1):
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value = self.ring_buf[(self.head - i) % self.length]
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if value == -1:
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self.reset()
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self.ring_buf[0] = 0
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self.head = 1
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raise ValueError("not complete - reset ringbuffer")
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data.append(value)
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if data[0] != 0x0 or data[1] != 0xff:
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#print "issue", data
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self.reset()
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self.ring_buf[0] = 0
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self.head = 1
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raise ValueError("not synced - reset ringbuffer")
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return data[2:]
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def main():
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platform = init()
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actor = platform.args.actor
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buf = RingBuffer(6)
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heartbeat_on = False
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while 1:
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try:
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toread, towrite, toerrors = select.select([platform.serial_sock], [],[], 0.05)
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if toread:
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t = platform.serial_sock.read(1)
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else:
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continue
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except (socket.error, serial.serialutil.SerialException), msg:
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# got disconnected?
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logger.exception(msg)
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platform.reconnect()
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try:
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t = ord(t)
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except TypeError, e:
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continue
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#print "got value", t
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buf.append(t)
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if t == 0:
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try:
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heart_signal, heart_rate, o2, pulse = buf.getData()
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except ValueError, msg:
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logger.exception(msg)
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continue
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if pulse == 245 and not heartbeat_on:
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heartbeat_on = True
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try:
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osc_message = OSCMessage("/%s/heartbeat" % actor)
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osc_message.appendTypedArg(1, "i")
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osc_message.appendTypedArg(heart_rate, "i")
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osc_message.appendTypedArg(o2, "i")
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platform.osc_sock.sendto(osc_message.encode_osc(), platform.remote)
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#print "on heartbeat", datetime.now(), heart_signal, heart_rate, o2, pulse
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except socket.error, msg:
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logger.exception(msg)
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continue
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elif pulse == 1 and heartbeat_on:
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#print "off heartbeat", datetime.now(), heart_signal, heart_rate, o2, pulse
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heartbeat_on = False
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try:
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osc_message = OSCMessage("/%s/heartbeat" % actor)
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osc_message.appendTypedArg(0, "i")
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osc_message.appendTypedArg(heart_rate, "i")
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osc_message.appendTypedArg(o2, "i")
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platform.osc_sock.sendto(osc_message.encode_osc(), platform.remote)
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except socket.error, msg:
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logger.exception(msg)
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continue
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if __name__ == '__main__':
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main()
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