1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
|
#!/usr/bin/python
# -*- coding: utf-8 -*-
from kivy.app import App
from kivy.clock import Clock
from kivy.lang import Builder
from kivy.properties import NumericProperty
from kivy.properties import ObjectProperty
from kivy.uix.boxlayout import BoxLayout
interface = Builder.load_string('''
#:import facade plyer.compass
<CompassInterface>:
facade: facade
orientation: 'vertical'
padding: '20dp'
spacing: '10dp'
BoxLayout:
orientation: 'vertical'
BoxLayout:
orientation: 'horizontal'
size_hint: 1, .1
Button:
id: enable_button
text: 'Enable Sensor'
disabled: False
on_release:
root.enable()
disable_button.disabled = not disable_button.disabled
enable_button.disabled = not enable_button.disabled
Button:
id: disable_button
text: 'Disable Sensor'
disabled: True
on_release:
root.disable()
disable_button.disabled = not disable_button.disabled
enable_button.disabled = not enable_button.disabled
BoxLayout:
orientation: 'vertical'
Label:
text: "Earth's Magnetic Field"
Label:
text: 'including hard iron calibration'
Label:
text: '(' + str(root.x_calib) + ','
Label:
text: str(root.y_calib) + ','
Label:
text: str(root.z_calib) + ')'
Label:
text: "Earth's Magnetic Field"
Label:
text: 'w/o hard iron calibration'
Label:
text: '(' + str(root.x_field) + ','
Label:
text: str(root.y_field) + ','
Label:
text: str(root.z_field) + ')'
Label:
text: 'Hard Iron Calibration'
Label:
text: '(' + str(root.x_iron) + ','
Label:
text: str(root.y_iron) + ','
Label:
text: str(root.z_iron) + ')'
Label:
text: 'All the values are in μT'
''')
class CompassInterface(BoxLayout):
x_calib = NumericProperty(0)
y_calib = NumericProperty(0)
z_calib = NumericProperty(0)
x_field = NumericProperty(0)
y_field = NumericProperty(0)
z_field = NumericProperty(0)
x_iron = NumericProperty(0)
y_iron = NumericProperty(0)
z_iron = NumericProperty(0)
facade = ObjectProperty()
def enable(self):
self.facade.enable()
Clock.schedule_interval(self.get_field, 1 / 20.)
Clock.schedule_interval(self.get_field_uncalib, 1 / 20.)
def disable(self):
self.facade.disable()
Clock.unschedule(self.get_field)
Clock.unschedule(self.get_field_uncalib)
def get_field(self, dt):
if self.facade.field != (None, None, None):
self.x_calib, self.y_calib, self.z_calib = self.facade.field
def get_field_uncalib(self, dt):
if self.facade.field_uncalib != (None, None, None, None, None, None):
self.x_field, self.y_field, self.z_field, self.x_iron,\
self.y_iron, self.z_iron = self.facade.field_uncalib
class CompassTestApp(App):
def build(self):
return CompassInterface()
if __name__ == '__main__':
CompassTestApp().run()
|
