forked from enesbcs/rpieasy
-
Notifications
You must be signed in to change notification settings - Fork 0
/
_P067_HX711.py
199 lines (190 loc) · 6.77 KB
/
_P067_HX711.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
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
#!/usr/bin/env python3
#############################################################################
###################### HX711 plugin for RPIEasy #############################
#############################################################################
#
# Copyright (C) 2023 by Alexander Nagy - https://bitekmindenhol.blog.hu/
#
import plugin
import webserver
import rpieGlobals
import rpieTime
import misc
from lib.hx711.hx711 import HX711
import time
class Plugin(plugin.PluginProto):
PLUGIN_ID = 67
PLUGIN_NAME = "Weight - HX711 Load Cell [EXPERIMENTAL]"
PLUGIN_VALUENAME1 = "WeightChanA"
PLUGIN_VALUENAME2 = "WeightChanB"
def __init__(self,taskindex): # general init
plugin.PluginProto.__init__(self,taskindex)
self.dtype = rpieGlobals.DEVICE_TYPE_DUAL
self.vtype = rpieGlobals.SENSOR_TYPE_DUAL
self.valuecount = 2
self.senddataoption = True
self.recdataoption = False
self.timeroption = True
self.timeroptional = False
self.formulaoption = True
self.readinprogress = 0
self._hx = None
self.initialized = False
self.offset = [ [1,1], [1,1], [1,1], [1,1] ]
def plugin_init(self,enableplugin=None):
plugin.PluginProto.plugin_init(self,enableplugin)
if self.enabled and self.taskdevicepin[0]>0 and self.taskdevicepin[1]>0:
self.readinprogress = 1
try:
self._hx = HX711( int(self.taskdevicepin[1]), int(self.taskdevicepin[0]) ) #dout, sck
self._hx.set_reading_format("MSB","MSB")
self._hx.reset()
self.initialized = True
except Exception as e:
misc.addLog(rpieGlobals.LOG_LEVEL_ERROR,"HX711 init error: "+str(e))
self.initialized = False
self._hx = None
if self._hx is not None:
try:
if self.taskdevicepluginconfig[0] != 0:
self._hx.set_offset_A(self.taskdevicepluginconfig[1])
ref = 0
try:
ref = self.offset[0][0] / self.offset[0][1]
except:
ref = 0
if ref != 0:
self._hx.set_reference_unit_A(ref)
if self.taskdevicepluginconfig[2] != 0:
self._hx.set_offset_B(self.taskdevicepluginconfig[3])
ref = 0
try:
ref = self.offset[1][0] / self.offset[1][1]
except:
ref = 0
if ref != 0:
self._hx.set_reference_unit_B(ref)
except:
pass
self.readinprogress = 0
def plugin_exit(self):
try:
if self._hx:
self._hx.power_down()
except:
pass
def __del__(self):
self.plugin_exit()
def webform_load(self):
webserver.addFormNote("1st GPIO is <b>SCK</b> pin which has to be an output, and 2nd GPIO is the <b>DT</b> pin which has to be an input!<br>Make sure to set it up at <a href='pinout'>Pinout settings</a> first!")
choice1 = self.taskdevicepluginconfig[0]
options = ["Off","Gain 64","Gain 128"]
optionvalues = [0,64,128]
webserver.addFormSubHeader("Measurement Channel A")
webserver.addFormSelector("Mode","modeChA",len(optionvalues),options,optionvalues,None,int(choice1))
webserver.addFormTextBox("Offset","offsChA",self.taskdevicepluginconfig[1],20)
webserver.addFormCheckBox("Tare","tareChA",False)
options = ["Off","Gain 32"]
optionvalues = [0,32]
choice1 = self.taskdevicepluginconfig[2]
webserver.addFormSubHeader("Measurement Channel B")
webserver.addFormSelector("Mode","modeChB",len(optionvalues),options,optionvalues,None,int(choice1))
webserver.addFormTextBox("Offset","offsChB",self.taskdevicepluginconfig[3],20)
webserver.addFormCheckBox("Tare","tareChB",False)
webserver.addFormSubHeader("Calibration Channel A")
webserver.addFormNumericBox("Point 1","adc1ChA",self.offset[0][0])
webserver.addHtml("=")
webserver.addFormTextBox("Value 1","out1ChA",self.offset[0][1],20)
webserver.addFormSubHeader("Calibration Channel B")
webserver.addFormNumericBox("Point 1","adc1ChB",self.offset[1][0])
webserver.addHtml("=")
webserver.addFormTextBox("Value 1","out1ChB",self.offset[1][1],20)
return True
def webform_save(self,params):
try:
self.taskdevicepluginconfig[0] = int(webserver.arg("modeChA",params))
self.taskdevicepluginconfig[1] = float(webserver.arg("offsChA",params))
self.taskdevicepluginconfig[2] = int(webserver.arg("modeChB",params))
self.taskdevicepluginconfig[3] = float(webserver.arg("offsChB",params))
except:
pass
try:
self.offset[0][0] = int(webserver.arg("adc1ChA",params))
self.offset[0][1] = int(webserver.arg("out1ChA",params))
self.offset[1][0] = int(webserver.arg("adc1ChB",params))
self.offset[1][1] = int(webserver.arg("out1ChB",params))
except:
pass
if (webserver.arg("tareChA",params)=="on"):
try:
if self._hx:
while self.readinprogress:
time.sleep(0.01)
self.readinprogress = 1
self._hx.tare_A()
self.readinprogress = 0
self.taskdevicepluginconfig[1] = self._hx.get_offset_A()
except:
pass
if (webserver.arg("tareChB",params)=="on"):
try:
if self._hx:
while self.readinprogress:
time.sleep(0.01)
self.readinprogress = 1
self._hx.tare_B()
self.readinprogress = 0
self.taskdevicepluginconfig[3] = self._hx.get_offset_B()
except:
pass
self.plugin_init()
return True
def plugin_read(self): # deal with data processing at specified time interval
result = False
if self.initialized and self.readinprogress==0 and self.enabled:
self.readinprogress = 1
if self._hx:
self._hx.power_up()
if int(self.taskdevicepluginconfig[0]) != 0: #A
self._hx.set_gain(self.taskdevicepluginconfig[0])
value = self._hx.get_weight_A(5)
self.set_value(1,value,True)
else:
self.set_value(1,0,False)
if int(self.taskdevicepluginconfig[2]) != 0: #B
value = self._hx.get_weight_B(5)
self.set_value(2,value,True) #always gain32
else:
self.set_value(2,0,False)
self._hx.power_down()
self.plugin_senddata()
self._lastdataservetime = rpieTime.millis()
result = True
self.readinprogress = 0
return result
def plugin_write(self,cmd): # Handling commands
res = False
cmdarr = cmd.split(",")
cmdarr[0] = cmdarr[0].strip().lower()
if cmdarr[0]== "tarechan": #a / b
res = True
try:
if cmdarr[0][8] == "a":
if self._hx:
while self.readinprogress:
time.sleep(0.01)
self.readinprogress = 1
self._hx.tare_A()
self.readinprogress = 0
self.taskdevicepluginconfig[1] = self._hx.get_offset_A()
elif cmdarr[0][8] == "b":
if self._hx:
while self.readinprogress:
time.sleep(0.01)
self.readinprogress = 1
self._hx.tare_B()
self.readinprogress = 0
self.taskdevicepluginconfig[3] = self._hx.get_offset_A()
except:
pass
return res