-
-
Notifications
You must be signed in to change notification settings - Fork 4
/
Copy pathbuttons.py
183 lines (143 loc) · 5.59 KB
/
buttons.py
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
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
from .modulino import Modulino
from time import ticks_ms
from micropython import const
class ModulinoButtons(Modulino):
default_addresses = [0x7C]
default_long_press_duration = const(1000) # 1 second
def __init__(self, i2c_bus=None, address=None):
super().__init__(i2c_bus, address, "BUTTONS")
self.long_press_duration = self.default_long_press_duration
self._current_buttons_status = [None, None, None]
self._last_press_timestamps = [None, None, None]
# Button callbacks
self._on_button_a_press = None
self._on_button_a_release = None
self._on_button_b_press = None
self._on_button_b_release = None
self._on_button_c_press = None
self._on_button_c_release = None
self._on_button_a_long_press = None
self._on_button_b_long_press = None
self._on_button_c_long_press = None
def set_led_status(self, a, b, c):
data = bytearray(3)
data[0] = 1 if a else 0
data[1] = 1 if b else 0
data[2] = 1 if c else 0
self.write(data)
@property
def long_press_duration(self):
return self._long_press_duration
@long_press_duration.setter
def long_press_duration(self, value):
self._long_press_duration = value
@property
def on_button_a_press(self):
return self._on_button_a_press
@on_button_a_press.setter
def on_button_a_press(self, value):
self._on_button_a_press = value
@property
def on_button_a_release(self):
return self._on_button_a_release
@on_button_a_release.setter
def on_button_a_release(self, value):
self._on_button_a_release = value
@property
def on_button_a_long_press(self):
return self._on_button_a_long_press
@on_button_a_long_press.setter
def on_button_a_long_press(self, value):
self._on_button_a_long_press = value
@property
def on_button_b_press(self):
return self._on_button_b_press
@on_button_b_press.setter
def on_button_b_press(self, value):
self._on_button_b_press = value
@property
def on_button_b_release(self):
return self._on_button_b_release
@on_button_b_release.setter
def on_button_b_release(self, value):
self._on_button_b_release = value
@property
def on_button_b_long_press(self):
return self._on_button_b_long_press
@on_button_b_long_press.setter
def on_button_b_long_press(self, value):
self._on_button_b_long_press = value
@property
def on_button_c_press(self):
return self._on_button_c_press
@on_button_c_press.setter
def on_button_c_press(self, value):
self._on_button_c_press = value
@property
def on_button_c_release(self):
return self._on_button_c_release
@on_button_c_release.setter
def on_button_c_release(self, value):
self._on_button_c_release = value
@property
def on_button_c_long_press(self):
return self._on_button_c_long_press
@on_button_c_long_press.setter
def on_button_c_long_press(self, value):
self._on_button_c_long_press = value
def update(self):
"""
Update the button status and call the corresponding callbacks.
Returns True if any of the buttons has changed its state.
"""
new_status = self.read(3)
button_states_changed = new_status != self._current_buttons_status
previous_status = self._current_buttons_status
current_timestamp = ticks_ms()
# Update status already in case it's accessed in one of the button callbacks
self._current_buttons_status = new_status
# Check for long press
if(new_status[0] == 1 and previous_status[0] == 1 and self._last_press_timestamps[0] and current_timestamp - self._last_press_timestamps[0] > self.long_press_duration):
self._last_press_timestamps[0] = None
if self._on_button_a_long_press:
self._on_button_a_long_press()
if(new_status[1] == 1 and previous_status[1] == 1 and self._last_press_timestamps[1] and current_timestamp - self._last_press_timestamps[1] > self.long_press_duration):
self._last_press_timestamps[1] = None
if self._on_button_b_long_press:
self._on_button_b_long_press()
if(new_status[2] == 1 and previous_status[2] == 1 and self._last_press_timestamps[2] and current_timestamp - self._last_press_timestamps[2] > self.long_press_duration):
self._last_press_timestamps[2] = None
if self._on_button_c_long_press:
self._on_button_c_long_press()
# Check for press and release
if(button_states_changed):
if(new_status[0] == 1 and previous_status[0] == 0):
self._last_press_timestamps[0] = ticks_ms()
if(self._on_button_a_press):
self._on_button_a_press()
elif(new_status[0] == 0 and previous_status[0] == 1 and self._on_button_a_release):
self._on_button_a_release()
if(new_status[1] == 1 and previous_status[1] == 0):
self._last_press_timestamps[1] = ticks_ms()
if(self._on_button_b_press):
self._on_button_b_press()
elif(new_status[1] == 0 and previous_status[1] == 1 and self._on_button_b_release):
self._on_button_b_release()
if(new_status[2] == 1 and previous_status[2] == 0):
self._last_press_timestamps[2] = ticks_ms()
if(self._on_button_c_press):
self._on_button_c_press()
elif(new_status[2] == 0 and previous_status[2] == 1 and self._on_button_c_release):
self._on_button_c_release()
return button_states_changed
def is_pressed(self, index):
return self._current_buttons_status[index]
@property
def button_a_pressed(self):
return self.is_pressed(0)
@property
def button_b_pressed(self):
return self.is_pressed(1)
@property
def button_c_pressed(self):
return self.is_pressed(2)