3 ## This file is part of the sigrok-meter project.
5 ## Copyright (C) 2013 Uwe Hermann <uwe@hermann-uwe.de>
7 ## This program is free software; you can redistribute it and/or modify
8 ## it under the terms of the GNU General Public License as published by
9 ## the Free Software Foundation; either version 2 of the License, or
10 ## (at your option) any later version.
12 ## This program is distributed in the hope that it will be useful,
13 ## but WITHOUT ANY WARRANTY; without even the implied warranty of
14 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 ## GNU General Public License for more details.
17 ## You should have received a copy of the GNU General Public License
18 ## along with this program; if not, write to the Free Software
19 ## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
22 from multiprocessing import Process, Queue
23 from gi.repository import Gtk, GObject
24 from sigrok.core import *
25 from sigrok.core import lowlevel as ll
27 def init_and_run(queue):
28 def datafeed_in(device, packet):
29 if packet.type is PacketType.ANALOG:
30 data = packet.payload.data
31 unit, unit_str = packet.payload.unit, ""
34 elif unit is Unit.OHM:
36 elif unit is Unit.AMPERE:
38 mqflags, mqflags_str = packet.payload.mqflags, ""
39 if QuantityFlag.AC in mqflags:
41 elif QuantityFlag.DC in mqflags:
43 for i in range(packet.payload.num_samples):
44 dev = "%s" % device.vendor
45 val = "%f%s%s" % (data[i], unit_str, mqflags_str)
49 # log.level = LogLevel.SPEW
51 drivers_to_use = ['voltcraft-vc820', 'victor-dmm']
52 drivers = [context.drivers[d] for d in drivers_to_use]
53 devices = [d.scan()[0] for d in drivers]
55 dev.limit_samples = 1000
56 session = Session(context)
58 session.add_device(dev)
59 session.add_callback(datafeed_in)
66 self.builder = Gtk.Builder()
67 self.builder.add_from_file("sigrok-meter.glade")
68 self.builder.connect_signals(self)
69 self.value_label = self.builder.get_object("value_label")
70 self.value_label2 = self.builder.get_object("value_label2")
71 self.win = self.builder.get_object("mainwindow")
74 GObject.timeout_add(100, self.update_label_if_needed)
76 def update_label_if_needed(self):
78 t = self.queue.get_nowait()
79 l = self.value_label if t[0] != "Victor" else self.value_label2
80 l.set_text("%s: %s" % (t[0], t[1]))
83 GObject.timeout_add(100, self.update_label_if_needed)
85 def on_quit(self, *args):
88 def on_about(self, action):
89 about = self.builder.get_object("aboutdialog")
90 sr_pkg = ll.sr_package_version_string_get()
91 sr_lib = ll.sr_lib_version_string_get()
92 s = "Using libsigrok %s (lib version %s)." % (sr_pkg, sr_lib)
97 if __name__ == '__main__':
99 process = Process(target=init_and_run, args=(s.queue,))