Mercurial > code > home > repos > homeauto
annotate service/piNode/devices.py @ 290:7b5cff542078
more motion sensor statements
Ignore-this: 7019e6042e602812057bbffd9dab89b1
author | drewp@bigasterisk.com |
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date | Wed, 11 May 2016 21:45:35 -0700 |
parents | e1b870f1274c |
children | e7cbf250188a |
rev | line source |
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182 | 1 from __future__ import division |
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2 |
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3 import time, logging, os |
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4 from rdflib import Namespace, URIRef, Literal |
274 | 5 from twisted.internet import reactor |
182 | 6 |
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7 try: |
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8 import pigpio |
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9 except ImportError: |
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10 pigpio = None |
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11 import w1thermsensor |
259 | 12 try: |
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13 import neopixel |
259 | 14 except ImportError: |
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15 neopixel = None |
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16 |
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17 def setupPwm(pi, pinNumber, hz=8000): |
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18 pi.set_mode(pinNumber, pigpio.OUTPUT) |
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19 # see http://abyz.co.uk/rpi/pigpio/cif.html#gpioCfgClock |
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20 # and http://abyz.co.uk/rpi/pigpio/cif.html#gpioSetPWMfrequency |
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21 actual = pi.set_PWM_frequency(pinNumber, hz) |
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22 if actual != hz: |
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23 raise ValueError('pwm actual=%s' % actual) |
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24 pi.set_PWM_dutycycle(pinNumber, 0) |
259 | 25 |
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26 import sys |
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27 |
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28 log = logging.getLogger() |
182 | 29 ROOM = Namespace('http://projects.bigasterisk.com/room/') |
209 | 30 XSD = Namespace('http://www.w3.org/2001/XMLSchema#') |
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31 RDFS = Namespace('http://www.w3.org/2000/01/rdf-schema#') |
182 | 32 |
33 class DeviceType(object): | |
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34 deviceType = NotImplementedError |
182 | 35 @classmethod |
36 def findInstances(cls, graph, board, pi): | |
37 """ | |
38 return any number of instances of this class for all the separately | |
39 controlled devices on the board. Two LEDS makes two instances, | |
40 but two sensors on the same onewire bus makes only one device | |
41 (which yields more statements). | |
42 """ | |
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43 log.debug("graph has any connected devices of type %s?", cls.deviceType) |
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44 for row in graph.query("""SELECT ?dev ?gpioNumber WHERE { |
182 | 45 ?board :hasPin ?pin . |
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46 ?pin :gpioNumber ?gpioNumber; |
182 | 47 :connectedTo ?dev . |
48 ?dev a ?thisType . | |
49 } ORDER BY ?dev""", | |
50 initBindings=dict(board=board, | |
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51 thisType=cls.deviceType)): |
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52 yield cls(graph, row.dev, pi, int(row.gpioNumber)) |
182 | 53 |
54 def __init__(self, graph, uri, pi, pinNumber): | |
55 self.graph, self.uri, self.pi = graph, uri, pi | |
56 self.pinNumber = pinNumber | |
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57 self.hostStateInit() |
182 | 58 |
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59 def hostStateInit(self): |
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60 """ |
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61 If you don't want to use __init__, you can use this to set up |
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62 whatever storage you might need for hostStatements |
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63 """ |
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64 |
182 | 65 def description(self): |
66 return { | |
67 'uri': self.uri, | |
68 'className': self.__class__.__name__, | |
183
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69 'pinNumber': getattr(self, 'pinNumber', None), |
182 | 70 'outputPatterns': self.outputPatterns(), |
71 'watchPrefixes': self.watchPrefixes(), | |
72 'outputWidgets': self.outputWidgets(), | |
73 } | |
74 | |
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75 def hostStatements(self): |
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76 """ |
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77 Like readFromPoll but these statements come from the host-side |
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78 python code, not the connected device. Include output state |
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79 (e.g. light brightness) if its master version is in this |
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80 object. This method is called on /graph requests so it should |
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81 be fast. |
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82 """ |
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83 return [] |
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84 |
182 | 85 def watchPrefixes(self): |
86 """ | |
87 subj,pred pairs of the statements that might be returned from | |
88 readFromPoll, so the dashboard knows what it should | |
89 watch. This should be eliminated, as the dashboard should just | |
90 always watch the whole tree of statements starting self.uri | |
91 """ | |
92 return [] | |
93 | |
94 def poll(self): | |
95 return [] # statements | |
96 | |
97 def outputPatterns(self): | |
98 """ | |
99 Triple patterns, using None as a wildcard, that should be routed | |
100 to sendOutput | |
101 """ | |
102 return [] | |
103 | |
104 def outputWidgets(self): | |
105 """ | |
106 structs to make output widgets on the dashboard. ~1 of these per | |
107 handler you have in sendOutput | |
108 """ | |
109 return [] | |
110 | |
111 def sendOutput(self, statements): | |
112 """ | |
113 If we got statements that match this class's outputPatterns, this | |
114 will be called with the statements that matched. | |
115 | |
116 Todo: it would be fine to read back confirmations or | |
117 whatever. Just need a way to collect them into graph statements. | |
118 """ | |
119 raise NotImplementedError | |
120 | |
121 _knownTypes = set() | |
122 def register(deviceType): | |
123 _knownTypes.add(deviceType) | |
124 return deviceType | |
125 | |
126 @register | |
127 class MotionSensorInput(DeviceType): | |
290 | 128 """ |
129 0 30s 60s 90s 10min | |
130 | | | | ... | | |
131 Sensor input ******** ** ******* **** | |
132 :sees output ........ .. ....... .... | |
133 :seesRecently ............................................................. | |
134 :seesRecently30 .................................... | |
135 :motionStart x x x x | |
136 :motionStart30 x x | |
137 """ | |
138 # compare motion sensor lib at | |
139 # https://gpiozero.readthedocs.org/en/v1.2.0/api_input.html#motion-sensor-d-sun-pir | |
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140 # which is a bit fancier |
182 | 141 deviceType = ROOM['MotionSensor'] |
142 | |
143 def setup(self): | |
144 self.pi.set_mode(17, pigpio.INPUT) | |
145 self.pi.set_pull_up_down(17, pigpio.PUD_DOWN) | |
146 | |
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147 def hostStateInit(self): |
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148 self.lastRead = None |
290 | 149 self.lastMotionStart30 = 0 |
150 self.lastMotionStart90 = 0 | |
254
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151 |
182 | 152 def poll(self): |
153 motion = self.pi.read(17) | |
290 | 154 now = time.time() |
182 | 155 |
254
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156 oneshot = [] |
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157 if self.lastRead is not None and motion != self.lastRead: |
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158 oneshot = [(self.uri, ROOM['sees'], ROOM['motionStart'])] |
290 | 159 for v, t in [('lastMotionStart30', 30), ('lastMotionStart90', 90)]: |
160 if now - getattr(self, v) > t: | |
161 oneshot.append((self.uri, ROOM['sees'], ROOM['motionStart%s' % t])) | |
162 setattr(self, v, now) | |
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163 self.lastRead = motion |
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164 |
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165 return {'latest': [ |
182 | 166 (self.uri, ROOM['sees'], |
167 ROOM['motion'] if motion else ROOM['noMotion']), | |
290 | 168 ] + self.recentMotionStatements(now, motion), |
267 | 169 'oneshot': oneshot} |
182 | 170 |
290 | 171 def recentMotionStatements(self, now, motion): |
182 | 172 if not hasattr(self, 'lastMotionTime'): |
173 self.lastMotionTime = 0 | |
174 if motion: | |
175 self.lastMotionTime = now | |
267 | 176 dt = now - self.lastMotionTime |
177 return [(self.uri, ROOM['seesRecently'], | |
178 ROOM['motion'] if (dt < 60 * 10) else ROOM['noMotion']), | |
179 (self.uri, ROOM['seesRecently30'], | |
180 ROOM['motion'] if (dt < 30) else ROOM['noMotion'])] | |
182 | 181 |
182 def watchPrefixes(self): | |
183 return [ | |
184 (self.uri, ROOM['sees']), | |
185 (self.uri, ROOM['seesRecently']), | |
267 | 186 (self.uri, ROOM['seesRecently30']), |
182 | 187 ] |
188 | |
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189 |
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190 @register |
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191 class RgbStrip(DeviceType): |
220 | 192 """3 PWMs for r/g/b on a strip""" |
221
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193 # pigpio daemon is working fine, but |
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194 # https://github.com/RPi-Distro/python-gpiozero/blob/59ba7154c5918745ac894ea03503667d6473c760/gpiozero/output_devices.py#L213 |
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195 # can also apparently do PWM |
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196 deviceType = ROOM['RgbStrip'] |
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197 |
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198 @classmethod |
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199 def findInstances(cls, graph, board, pi): |
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200 for row in graph.query("""SELECT DISTINCT ?dev ?r ?g ?b WHERE { |
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201 ?board |
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202 :hasPin ?rpin; |
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203 :hasPin ?gpin; |
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204 :hasPin ?bpin . |
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205 ?dev a :RgbStrip; |
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206 :redChannel ?rpin; |
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207 :greenChannel ?gpin; |
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208 :blueChannel ?bpin . |
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209 ?rpin :gpioNumber ?r . |
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210 ?gpin :gpioNumber ?g . |
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211 ?bpin :gpioNumber ?b . |
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212 } ORDER BY ?dev""", |
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213 initBindings=dict(board=board), |
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214 initNs={'': ROOM}): |
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215 log.debug('found rgb %r', row) |
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216 yield cls(graph, row.dev, pi, row.r, row.g, row.b) |
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217 |
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218 def __init__(self, graph, uri, pi, r, g, b): |
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219 self.graph, self.uri, self.pi = graph, uri, pi |
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220 self.rgb = map(int, [r, g, b]) |
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221 self.value = '#000000' |
183
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222 |
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223 def setup(self): |
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224 for i in self.rgb: |
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225 setupPwm(self.pi, i) |
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226 |
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227 def hostStatements(self): |
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228 return [(self.uri, ROOM['color'], Literal(self.value))] |
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229 |
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230 def outputPatterns(self): |
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231 return [(self.uri, ROOM['color'], None)] |
220 | 232 |
233 def _rgbFromHex(self, h): | |
234 rrggbb = h.lstrip('#') | |
235 return [int(x, 16) for x in [rrggbb[0:2], rrggbb[2:4], rrggbb[4:6]]] | |
183
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236 |
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237 def sendOutput(self, statements): |
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238 assert len(statements) == 1 |
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239 assert statements[0][:2] == (self.uri, ROOM['color']) |
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240 |
220 | 241 rgb = self._rgbFromHex(statements[0][2]) |
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242 self.value = statements[0][2] |
183
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243 |
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244 for (i, v) in zip(self.rgb, rgb): |
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245 self.pi.set_PWM_dutycycle(i, v) |
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246 |
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247 def outputWidgets(self): |
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248 return [{ |
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249 'element': 'output-rgb', |
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250 'subj': self.uri, |
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251 'pred': ROOM['color'], |
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252 }] |
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253 |
210 | 254 |
255 @register | |
221
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256 class TempHumidSensor(DeviceType): |
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257 deviceType = ROOM['TempHumidSensor'] |
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258 |
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259 def __init__(self, *a, **kw): |
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260 DeviceType.__init__(self, *a, **kw) |
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261 sys.path.append('/opt/pigpio/EXAMPLES/Python/DHT22_AM2302_SENSOR') |
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262 import DHT22 |
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263 self.sensor = DHT22.sensor(self.pi, self.pinNumber) |
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264 |
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265 def poll(self): |
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266 self.sensor.trigger() |
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267 humid, tempC = self.sensor.humidity(), self.sensor.temperature() |
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268 |
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269 stmts = set() |
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270 if humid is not None: |
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271 stmts.add((self.uri, ROOM['humidity'], Literal(round(humid, 2)))) |
221
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272 else: |
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273 stmts.add((self.uri, RDFS['comment'], |
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274 Literal('DHT read returned None'))) |
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275 if tempC is not None: |
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276 stmts.add((self.uri, ROOM['temperatureF'], |
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277 # see round() note in arduinoNode/devices.py |
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278 Literal(round(tempC * 9 / 5 + 32, 2)))) |
221
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279 else: |
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280 stmts.add((self.uri, RDFS['comment'], |
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281 Literal('DHT read returned None'))) |
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282 return stmts |
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283 |
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284 def watchPrefixes(self): |
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285 return [ |
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286 (self.uri, ROOM['temperatureF']), |
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287 (self.uri, ROOM['humidity']), |
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288 ] |
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289 |
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290 @register |
244 | 291 class PushbuttonInput(DeviceType): |
292 """add a switch to ground; we'll turn on pullup""" | |
293 deviceType = ROOM['Pushbutton'] | |
294 | |
295 def __init__(self, *a, **kw): | |
296 DeviceType.__init__(self, *a, **kw) | |
297 log.debug("setup switch on %r", self.pinNumber) | |
298 self.pi.set_mode(self.pinNumber, pigpio.INPUT) | |
299 self.pi.set_pull_up_down(self.pinNumber, pigpio.PUD_UP) | |
251
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300 self.lastClosed = None |
262 | 301 self.invert = (self.uri, ROOM['style'], |
302 ROOM['inverted']) in self.graph | |
244 | 303 |
304 def poll(self): | |
305 closed = not self.pi.read(self.pinNumber) | |
262 | 306 if self.invert: |
307 closed = not closed | |
251
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308 |
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309 if self.lastClosed is not None and closed != self.lastClosed: |
262 | 310 log.debug('%s changed to %s', self.uri, closed) |
251
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311 oneshot = [ |
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312 (self.uri, ROOM['buttonState'], |
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313 ROOM['press'] if closed else ROOM['release']), |
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314 ] |
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315 else: |
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316 oneshot = [] |
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317 self.lastClosed = closed |
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318 |
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319 return {'latest': [ |
244 | 320 (self.uri, ROOM['buttonState'], |
321 ROOM['pressed'] if closed else ROOM['notPressed']), | |
251
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322 ], |
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323 'oneshot':oneshot} |
244 | 324 |
325 def watchPrefixes(self): | |
326 return [ | |
327 (self.uri, ROOM['buttonState']), | |
328 ] | |
329 | |
330 @register | |
221
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331 class OneWire(DeviceType): |
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332 """ |
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333 Also see /my/proj/ansible/roles/raspi_io_node/tasks/main.yml for |
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334 some system config that contains the pin number that you want to |
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335 use for onewire. The pin number in this config is currently ignored. |
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336 """ |
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337 deviceType = ROOM['OneWire'] |
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338 # deliberately written like arduinoNode's one for an easier merge. |
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339 def __init__(self, *a, **kw): |
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340 DeviceType.__init__(self, *a, **kw) |
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341 log.info("scan for w1 devices") |
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342 self._sensors = w1thermsensor.W1ThermSensor.get_available_sensors() |
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343 for s in self._sensors: |
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344 # Something looks different about these ids |
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345 # ('000003a5a94c') vs the ones I get from arduino |
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346 # ('2813bea50300003d'). Not sure if I'm parsing them |
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347 # differently or what. |
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348 s.uri = URIRef(os.path.join(self.uri, 'dev-%s' % s.id)) |
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349 log.info(' found temperature sensor %s' % s.uri) |
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350 |
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351 def poll(self): |
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352 try: |
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353 stmts = [] |
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354 for sensor in self._sensors: |
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355 stmts.append((self.uri, ROOM['connectedTo'], sensor.uri)) |
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356 try: |
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357 tempF = sensor.get_temperature(sensor.DEGREES_F) |
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358 stmts.append((sensor.uri, ROOM['temperatureF'], |
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359 # see round() note in arduinoNode/devices.py |
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360 Literal(round(tempF, 2)))) |
221
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361 except w1thermsensor.core.SensorNotReadyError as e: |
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362 log.warning(e) |
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363 |
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364 return stmts |
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365 except Exception as e: |
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366 log.error(e) |
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367 os.abort() |
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368 |
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369 def watchPrefixes(self): |
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370 return [(s.uri, ROOM['temperatureF']) for s in self._sensors] |
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371 |
274 | 372 class FilteredValue(object): |
373 def __init__(self, setter, | |
374 slew=2.0, # step/sec max slew rate | |
375 accel=5, # step/sec^2 acceleration | |
376 ): | |
377 self.setter = setter | |
378 self.slew, self.accel = slew, accel | |
379 | |
380 self.x = None | |
381 self.dx = 0 | |
382 self.goal = self.x | |
383 self.lastStep = 0 | |
384 | |
385 def set(self, goal): | |
386 self.goal = goal | |
387 self.step() | |
388 | |
389 def step(self): | |
390 now = time.time() | |
391 dt = min(.1, now - self.lastStep) | |
392 self.lastStep = now | |
393 | |
394 if self.x is None: | |
395 self.x = self.goal | |
396 | |
397 if self.goal > self.x: | |
398 self.dx = min(self.slew, self.dx + self.accel * dt) | |
399 else: | |
400 self.dx = max(-self.slew, self.dx - self.accel * dt) | |
401 | |
402 nextX = self.x + self.dx * dt | |
403 if self.x == self.goal or (self.x < self.goal < nextX) or (self.x > self.goal > nextX): | |
404 self.x = self.goal | |
405 self.dx = 0 | |
406 else: | |
407 self.x = nextX | |
408 reactor.callLater(.05, self.step) | |
409 | |
410 #print "x= %(x)s dx= %(dx)s goal= %(goal)s" % self.__dict__ | |
411 self.setter(self.x) | |
221
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412 |
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413 @register |
210 | 414 class LedOutput(DeviceType): |
415 deviceType = ROOM['LedOutput'] | |
233
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416 |
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417 def hostStateInit(self): |
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418 self.value = 0 |
274 | 419 self.fv = FilteredValue(self._setPwm) |
289 | 420 self.gamma = float(self.graph.value(self.uri, ROOM['gamma'], default=1)) |
233
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421 |
210 | 422 def setup(self): |
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423 setupPwm(self.pi, self.pinNumber) |
210 | 424 |
425 def outputPatterns(self): | |
426 return [(self.uri, ROOM['brightness'], None)] | |
427 | |
428 def sendOutput(self, statements): | |
429 assert len(statements) == 1 | |
430 assert statements[0][:2] == (self.uri, ROOM['brightness']) | |
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431 self.value = float(statements[0][2]) |
274 | 432 self.fv.set(self.value) |
433 | |
434 def _setPwm(self, x): | |
289 | 435 v = int((x ** self.gamma)* 255) |
210 | 436 self.pi.set_PWM_dutycycle(self.pinNumber, v) |
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437 |
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438 def hostStatements(self): |
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439 return [(self.uri, ROOM['brightness'], Literal(self.value))] |
210 | 440 |
441 def outputWidgets(self): | |
442 return [{ | |
443 'element': 'output-slider', | |
444 'min': 0, | |
445 'max': 1, | |
446 'step': 1 / 255, | |
447 'subj': self.uri, | |
448 'pred': ROOM['brightness'], | |
449 }] | |
450 | |
451 | |
205 | 452 @register |
453 class OnboardTemperature(DeviceType): | |
454 deviceType = ROOM['OnboardTemperature'] | |
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455 pollPeriod = 10 |
205 | 456 @classmethod |
457 def findInstances(cls, graph, board, pi): | |
259 | 458 log.debug('graph has any connected devices of type OnboardTemperature on %r?', board) |
207 | 459 for row in graph.query('''SELECT DISTINCT ?uri WHERE { |
205 | 460 ?board :onboardDevice ?uri . |
461 ?uri a :OnboardTemperature . | |
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462 }''', initBindings=dict(board=board)): |
259 | 463 log.debug(' found %s', row.uri) |
205 | 464 yield cls(graph, row.uri, pi, pinNumber=None) |
465 | |
208 | 466 def poll(self): |
205 | 467 milliC = open('/sys/class/thermal/thermal_zone0/temp').read().strip() |
468 c = float(milliC) / 1000. | |
469 f = c * 1.8 + 32 | |
470 return [ | |
471 (self.uri, ROOM['temperatureF'], Literal(f, datatype=XSD['decimal'])), | |
472 ] | |
473 | |
474 def watchPrefixes(self): | |
475 # these uris will become dynamic! see note on watchPrefixes | |
476 # about eliminating it. | |
477 return [(self.uri, ROOM['temperatureF']), | |
478 ] | |
259 | 479 |
480 @register | |
481 class RgbPixels(DeviceType): | |
482 """chain of ws2812 rgb pixels on pin GPIO18""" | |
483 deviceType = ROOM['RgbPixels'] | |
484 | |
485 def hostStateInit(self): | |
486 px = self.graph.value(self.uri, ROOM['pixels']) | |
487 self.pixelUris = list(self.graph.items(px)) | |
488 self.values = dict((uri, Literal('#000000')) for uri in self.pixelUris) | |
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489 colorOrder, stripType = self.getColorOrder(self.graph, self.uri) |
259 | 490 self.replace = {'ledArray': 'leds_%s' % self.pinNumber, |
491 'ledCount': len(self.pixelUris), | |
492 'pin': self.pinNumber, | |
493 'ledType': 'WS2812', | |
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494 'colorOrder': colorOrder |
259 | 495 } |
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496 self.neo = neopixel.Adafruit_NeoPixel(len(self.values), pin=18, strip_type=stripType) |
259 | 497 self.neo.begin() |
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498 |
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499 def getColorOrder(self, graph, uri): |
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500 colorOrder = graph.value(uri, ROOM['colorOrder'], |
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501 default=ROOM['ledColorOrder/RGB']) |
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502 head, tail = str(colorOrder).rsplit('/', 1) |
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503 if head != str(ROOM['ledColorOrder']): |
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504 raise NotImplementedError('%r colorOrder %r' % (uri, colorOrder)) |
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505 stripType = getattr(neopixel.ws, 'WS2811_STRIP_%s' % tail) |
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506 return colorOrder, stripType |
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507 |
259 | 508 def _rgbFromHex(self, h): |
509 rrggbb = h.lstrip('#') | |
510 return [int(x, 16) for x in [rrggbb[0:2], rrggbb[2:4], rrggbb[4:6]]] | |
511 | |
512 def sendOutput(self, statements): | |
513 px, pred, color = statements[0] | |
514 if pred != ROOM['color']: | |
515 raise ValueError(pred) | |
516 rgb = self._rgbFromHex(color) | |
517 if px not in self.values: | |
518 raise ValueError(px) | |
519 self.values[px] = Literal(color) | |
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520 self.neo.setPixelColorRGB(self.pixelUris.index(px), rgb[0], rgb[1], rgb[2]) |
259 | 521 self.neo.show() |
522 | |
523 def hostStatements(self): | |
524 return [(uri, ROOM['color'], hexCol) | |
525 for uri, hexCol in self.values.items()] | |
526 | |
527 def outputPatterns(self): | |
528 return [(px, ROOM['color'], None) for px in self.pixelUris] | |
529 | |
530 def outputWidgets(self): | |
531 return [{ | |
532 'element': 'output-rgb', | |
533 'subj': px, | |
534 'pred': ROOM['color'], | |
535 } for px in self.pixelUris] | |
536 | |
205 | 537 |
182 | 538 def makeDevices(graph, board, pi): |
539 out = [] | |
540 for dt in sorted(_knownTypes, key=lambda cls: cls.__name__): | |
541 out.extend(dt.findInstances(graph, board, pi)) | |
542 return out | |
543 |