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
24 from multiprocessing import Process, Queue
25 from gi.repository import Gtk, GObject
26 import sigrok.core as sr
29 default_loglevel = sr.LogLevel.WARN
31 def init_and_run(queue, loglevel):
32 def datafeed_in(device, packet):
33 if packet.type == sr.PacketType.ANALOG:
34 data = packet.payload.data
35 unit, unit_str = packet.payload.unit, ""
36 if unit == sr.Unit.VOLT:
38 elif unit == sr.Unit.OHM:
40 elif unit == sr.Unit.AMPERE:
42 mqflags, mqflags_str = packet.payload.mq_flags, ""
43 if sr.QuantityFlag.AC in mqflags:
45 elif sr.QuantityFlag.DC in mqflags:
47 for i in range(packet.payload.num_samples):
48 dev = "%s %s" % (device.vendor, device.model)
49 val = "%f%s%s" % (data[0][i], unit_str, mqflags_str)
52 context = sr.Context_create()
53 context.log_level = loglevel
54 drivers_to_use = ['tecpel-dmm-8061-ser']
55 drivers = [context.drivers[d] for d in drivers_to_use]
56 devices = [d.scan(conn="/dev/ttyUSB0")[0] for d in drivers]
57 # devices = [d.scan()[0] for d in drivers]
59 # dev.limit_samples = 1000
60 session = context.create_session()
62 session.add_device(dev)
64 session.add_datafeed_callback(datafeed_in)
71 self.builder = Gtk.Builder()
72 self.builder.add_from_file("sigrok-meter.glade")
73 self.builder.connect_signals(self)
74 self.value_label = self.builder.get_object("value_label")
75 self.value_label2 = self.builder.get_object("value_label2")
76 self.win = self.builder.get_object("mainwindow")
79 GObject.timeout_add(100, self.update_label_if_needed)
81 def update_label_if_needed(self):
83 t = self.queue.get_nowait()
84 l = self.value_label if t[0] != "Victor" else self.value_label2
85 l.set_text("%s: %s" % (t[0], t[1]))
88 GObject.timeout_add(100, self.update_label_if_needed)
90 def on_quit(self, *args):
93 def on_about(self, action):
94 about = self.builder.get_object("aboutdialog")
95 context = sr.Context_create()
96 sr_pkg = context.package_version
97 sr_lib = context.lib_version
98 s = "Using libsigrok %s (lib version %s)." % (sr_pkg, sr_lib)
103 if __name__ == '__main__':
104 parser = argparse.ArgumentParser(
105 description='Simple sigrok GUI for multimeters and dataloggers.')
106 parser.add_argument('-l', '--loglevel',
108 help='Set loglevel (5 is most verbose)')
109 args = parser.parse_args()
111 loglevel = default_loglevel
112 if args.loglevel != None:
114 loglevel = sr.LogLevel.get(args.loglevel)
116 sys.exit('error: invalid log level')
119 process = Process(target=init_and_run, args=(s.queue, loglevel))