4 ## This file is part of the sigrok-meter project.
6 ## Copyright (C) 2013 Uwe Hermann <uwe@hermann-uwe.de>
8 ## This program is free software; you can redistribute it and/or modify
9 ## it under the terms of the GNU General Public License as published by
10 ## the Free Software Foundation; either version 2 of the License, or
11 ## (at your option) any later version.
13 ## This program is distributed in the hope that it will be useful,
14 ## but WITHOUT ANY WARRANTY; without even the implied warranty of
15 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 ## GNU General Public License for more details.
18 ## You should have received a copy of the GNU General Public License
19 ## along with this program; if not, write to the Free Software
20 ## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
23 from multiprocessing import Process, Queue
24 from gi.repository import Gtk, GObject
25 import sigrok.core as sr
27 def init_and_run(queue):
28 def datafeed_in(device, packet):
29 if packet.type == sr.PacketType.ANALOG:
30 data = packet.payload.data
31 unit, unit_str = packet.payload.unit, ""
32 if unit == sr.Unit.VOLT:
34 elif unit == sr.Unit.OHM:
36 elif unit == sr.Unit.AMPERE:
38 mqflags, mqflags_str = packet.payload.mq_flags, ""
39 if sr.QuantityFlag.AC in mqflags:
41 elif sr.QuantityFlag.DC in mqflags:
43 for i in range(packet.payload.num_samples):
44 dev = "%s %s" % (device.vendor, device.model)
45 val = "%f%s%s" % (data[0][i], unit_str, mqflags_str)
48 context = sr.Context_create()
49 context.log_level = sr.LogLevel.SPEW
50 drivers_to_use = ['tecpel-dmm-8061-ser']
51 drivers = [context.drivers[d] for d in drivers_to_use]
52 devices = [d.scan(conn="/dev/ttyUSB0")[0] for d in drivers]
53 # devices = [d.scan()[0] for d in drivers]
55 # dev.limit_samples = 1000
56 session = context.create_session()
58 session.add_device(dev)
60 session.add_datafeed_callback(datafeed_in)
67 self.builder = Gtk.Builder()
68 self.builder.add_from_file("sigrok-meter.glade")
69 self.builder.connect_signals(self)
70 self.value_label = self.builder.get_object("value_label")
71 self.value_label2 = self.builder.get_object("value_label2")
72 self.win = self.builder.get_object("mainwindow")
75 GObject.timeout_add(100, self.update_label_if_needed)
77 def update_label_if_needed(self):
79 t = self.queue.get_nowait()
80 l = self.value_label if t[0] != "Victor" else self.value_label2
81 l.set_text("%s: %s" % (t[0], t[1]))
84 GObject.timeout_add(100, self.update_label_if_needed)
86 def on_quit(self, *args):
89 def on_about(self, action):
90 about = self.builder.get_object("aboutdialog")
91 context = sr.Context_create()
92 sr_pkg = context.package_version
93 sr_lib = context.lib_version
94 s = "Using libsigrok %s (lib version %s)." % (sr_pkg, sr_lib)
99 if __name__ == '__main__':
101 process = Process(target=init_and_run, args=(s.queue,))