Mercurial > code > home > repos > homeauto
annotate service/piNode/devices.py @ 262:9e388c3f032c
invert support for Pushbutton
Ignore-this: d4b994070114e26700857fcd2cd0118e
| author | drewp@bigasterisk.com |
|---|---|
| date | Sat, 02 Apr 2016 23:33:43 -0700 |
| parents | 54fad386d6f5 |
| children | 1ae78fe6f36e |
| rev | line source |
|---|---|
| 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 |
| 182 | 5 |
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6 try: |
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7 import pigpio |
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8 except ImportError: |
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9 pigpio = None |
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10 import w1thermsensor |
| 259 | 11 try: |
| 12 import NeoPixel | |
| 13 except ImportError: | |
| 14 NeoPixel = None | |
| 15 | |
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16 import sys |
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17 |
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18 log = logging.getLogger() |
| 182 | 19 ROOM = Namespace('http://projects.bigasterisk.com/room/') |
| 209 | 20 XSD = Namespace('http://www.w3.org/2001/XMLSchema#') |
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21 RDFS = Namespace('http://www.w3.org/2000/01/rdf-schema#') |
| 182 | 22 |
| 23 class DeviceType(object): | |
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24 deviceType = NotImplementedError |
| 182 | 25 @classmethod |
| 26 def findInstances(cls, graph, board, pi): | |
| 27 """ | |
| 28 return any number of instances of this class for all the separately | |
| 29 controlled devices on the board. Two LEDS makes two instances, | |
| 30 but two sensors on the same onewire bus makes only one device | |
| 31 (which yields more statements). | |
| 32 """ | |
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33 log.debug("graph has any connected devices of type %s?", cls.deviceType) |
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34 for row in graph.query("""SELECT ?dev ?gpioNumber WHERE { |
| 182 | 35 ?board :hasPin ?pin . |
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36 ?pin :gpioNumber ?gpioNumber; |
| 182 | 37 :connectedTo ?dev . |
| 38 ?dev a ?thisType . | |
| 39 } ORDER BY ?dev""", | |
| 40 initBindings=dict(board=board, | |
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41 thisType=cls.deviceType)): |
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42 yield cls(graph, row.dev, pi, int(row.gpioNumber)) |
| 182 | 43 |
| 44 def __init__(self, graph, uri, pi, pinNumber): | |
| 45 self.graph, self.uri, self.pi = graph, uri, pi | |
| 46 self.pinNumber = pinNumber | |
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47 self.hostStateInit() |
| 182 | 48 |
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49 def hostStateInit(self): |
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50 """ |
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51 If you don't want to use __init__, you can use this to set up |
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52 whatever storage you might need for hostStatements |
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53 """ |
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54 |
| 182 | 55 def description(self): |
| 56 return { | |
| 57 'uri': self.uri, | |
| 58 'className': self.__class__.__name__, | |
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59 'pinNumber': getattr(self, 'pinNumber', None), |
| 182 | 60 'outputPatterns': self.outputPatterns(), |
| 61 'watchPrefixes': self.watchPrefixes(), | |
| 62 'outputWidgets': self.outputWidgets(), | |
| 63 } | |
| 64 | |
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65 def hostStatements(self): |
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66 """ |
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67 Like readFromPoll but these statements come from the host-side |
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68 python code, not the connected device. Include output state |
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69 (e.g. light brightness) if its master version is in this |
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70 object. This method is called on /graph requests so it should |
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71 be fast. |
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72 """ |
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73 return [] |
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74 |
| 182 | 75 def watchPrefixes(self): |
| 76 """ | |
| 77 subj,pred pairs of the statements that might be returned from | |
| 78 readFromPoll, so the dashboard knows what it should | |
| 79 watch. This should be eliminated, as the dashboard should just | |
| 80 always watch the whole tree of statements starting self.uri | |
| 81 """ | |
| 82 return [] | |
| 83 | |
| 84 def poll(self): | |
| 85 return [] # statements | |
| 86 | |
| 87 def outputPatterns(self): | |
| 88 """ | |
| 89 Triple patterns, using None as a wildcard, that should be routed | |
| 90 to sendOutput | |
| 91 """ | |
| 92 return [] | |
| 93 | |
| 94 def outputWidgets(self): | |
| 95 """ | |
| 96 structs to make output widgets on the dashboard. ~1 of these per | |
| 97 handler you have in sendOutput | |
| 98 """ | |
| 99 return [] | |
| 100 | |
| 101 def sendOutput(self, statements): | |
| 102 """ | |
| 103 If we got statements that match this class's outputPatterns, this | |
| 104 will be called with the statements that matched. | |
| 105 | |
| 106 Todo: it would be fine to read back confirmations or | |
| 107 whatever. Just need a way to collect them into graph statements. | |
| 108 """ | |
| 109 raise NotImplementedError | |
| 110 | |
| 111 _knownTypes = set() | |
| 112 def register(deviceType): | |
| 113 _knownTypes.add(deviceType) | |
| 114 return deviceType | |
| 115 | |
| 116 @register | |
| 117 class MotionSensorInput(DeviceType): | |
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118 # compare motion sensor lib at http://pythonhosted.org/gpiozero/inputs/ |
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119 # which is a bit fancier |
| 182 | 120 deviceType = ROOM['MotionSensor'] |
| 121 | |
| 122 def setup(self): | |
| 123 self.pi.set_mode(17, pigpio.INPUT) | |
| 124 self.pi.set_pull_up_down(17, pigpio.PUD_DOWN) | |
| 125 | |
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126 def hostStateInit(self): |
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127 self.lastRead = None |
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128 |
| 182 | 129 def poll(self): |
| 130 motion = self.pi.read(17) | |
| 131 | |
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132 oneshot = [] |
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133 if self.lastRead is not None and motion != self.lastRead: |
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134 oneshot = [(self.uri, ROOM['sees'], ROOM['motionStart'])] |
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135 self.lastRead = motion |
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136 |
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137 return {'latest': [ |
| 182 | 138 (self.uri, ROOM['sees'], |
| 139 ROOM['motion'] if motion else ROOM['noMotion']), | |
| 140 self.recentMotionStatement(motion), | |
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141 ], 'oneshot': oneshot} |
| 182 | 142 |
| 143 def recentMotionStatement(self, motion): | |
| 144 if not hasattr(self, 'lastMotionTime'): | |
| 145 self.lastMotionTime = 0 | |
| 146 now = time.time() | |
| 147 if motion: | |
| 148 self.lastMotionTime = now | |
| 149 recentMotion = now - self.lastMotionTime < 60 * 10 | |
| 150 return (self.uri, ROOM['seesRecently'], | |
| 151 ROOM['motion'] if recentMotion else ROOM['noMotion']) | |
| 152 | |
| 153 def watchPrefixes(self): | |
| 154 return [ | |
| 155 (self.uri, ROOM['sees']), | |
| 156 (self.uri, ROOM['seesRecently']), | |
| 157 ] | |
| 158 | |
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159 |
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160 @register |
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161 class RgbStrip(DeviceType): |
| 220 | 162 """3 PWMs for r/g/b on a strip""" |
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163 # pigpio daemon is working fine, but |
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164 # https://github.com/RPi-Distro/python-gpiozero/blob/59ba7154c5918745ac894ea03503667d6473c760/gpiozero/output_devices.py#L213 |
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165 # can also apparently do PWM |
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166 deviceType = ROOM['RgbStrip'] |
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167 |
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168 @classmethod |
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169 def findInstances(cls, graph, board, pi): |
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170 for row in graph.query("""SELECT DISTINCT ?dev ?r ?g ?b WHERE { |
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171 ?board |
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172 :hasPin ?rpin; |
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173 :hasPin ?gpin; |
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174 :hasPin ?bpin . |
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175 ?dev a :RgbStrip; |
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176 :redChannel ?rpin; |
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177 :greenChannel ?gpin; |
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178 :blueChannel ?bpin . |
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179 ?rpin :gpioNumber ?r . |
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180 ?gpin :gpioNumber ?g . |
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181 ?bpin :gpioNumber ?b . |
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182 } ORDER BY ?dev""", |
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183 initBindings=dict(board=board), |
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184 initNs={'': ROOM}): |
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185 log.debug('found rgb %r', row) |
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186 yield cls(graph, row.dev, pi, row.r, row.g, row.b) |
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187 |
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188 def __init__(self, graph, uri, pi, r, g, b): |
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189 self.graph, self.uri, self.pi = graph, uri, pi |
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190 self.rgb = map(int, [r, g, b]) |
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191 self.value = '#000000' |
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192 |
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193 def setup(self): |
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194 for i in self.rgb: |
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195 self.pi.set_mode(i, pigpio.OUTPUT) |
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196 self.pi.set_PWM_frequency(i, 200) |
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197 self.pi.set_PWM_dutycycle(i, 0) |
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198 |
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199 def hostStatements(self): |
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200 return [(self.uri, ROOM['color'], Literal(self.value))] |
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201 |
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202 def outputPatterns(self): |
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203 return [(self.uri, ROOM['color'], None)] |
| 220 | 204 |
| 205 def _rgbFromHex(self, h): | |
| 206 rrggbb = h.lstrip('#') | |
| 207 return [int(x, 16) for x in [rrggbb[0:2], rrggbb[2:4], rrggbb[4:6]]] | |
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208 |
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209 def sendOutput(self, statements): |
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210 assert len(statements) == 1 |
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211 assert statements[0][:2] == (self.uri, ROOM['color']) |
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212 |
| 220 | 213 rgb = self._rgbFromHex(statements[0][2]) |
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214 self.value = statements[0][2] |
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215 |
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216 for (i, v) in zip(self.rgb, rgb): |
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217 self.pi.set_PWM_dutycycle(i, v) |
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218 |
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219 def outputWidgets(self): |
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220 return [{ |
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221 'element': 'output-rgb', |
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222 'subj': self.uri, |
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223 'pred': ROOM['color'], |
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224 }] |
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225 |
| 210 | 226 |
| 227 @register | |
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228 class TempHumidSensor(DeviceType): |
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229 deviceType = ROOM['TempHumidSensor'] |
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230 |
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231 def __init__(self, *a, **kw): |
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232 DeviceType.__init__(self, *a, **kw) |
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233 sys.path.append('/opt/pigpio/EXAMPLES/Python/DHT22_AM2302_SENSOR') |
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234 import DHT22 |
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235 self.sensor = DHT22.sensor(self.pi, self.pinNumber) |
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236 |
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237 def poll(self): |
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238 self.sensor.trigger() |
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239 humid, tempC = self.sensor.humidity(), self.sensor.temperature() |
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240 |
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241 stmts = set() |
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242 if humid is not None: |
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243 stmts.add((self.uri, ROOM['humidity'], Literal(round(humid, 2)))) |
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244 else: |
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245 stmts.add((self.uri, RDFS['comment'], |
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246 Literal('DHT read returned None'))) |
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247 if tempC is not None: |
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248 stmts.add((self.uri, ROOM['temperatureF'], |
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249 # see round() note in arduinoNode/devices.py |
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250 Literal(round(tempC * 9 / 5 + 32, 2)))) |
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251 else: |
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252 stmts.add((self.uri, RDFS['comment'], |
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253 Literal('DHT read returned None'))) |
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254 return stmts |
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255 |
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256 def watchPrefixes(self): |
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257 return [ |
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258 (self.uri, ROOM['temperatureF']), |
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259 (self.uri, ROOM['humidity']), |
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260 ] |
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261 |
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262 @register |
| 244 | 263 class PushbuttonInput(DeviceType): |
| 264 """add a switch to ground; we'll turn on pullup""" | |
| 265 deviceType = ROOM['Pushbutton'] | |
| 266 | |
| 267 def __init__(self, *a, **kw): | |
| 268 DeviceType.__init__(self, *a, **kw) | |
| 269 log.debug("setup switch on %r", self.pinNumber) | |
| 270 self.pi.set_mode(self.pinNumber, pigpio.INPUT) | |
| 271 self.pi.set_pull_up_down(self.pinNumber, pigpio.PUD_UP) | |
|
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272 self.lastClosed = None |
| 262 | 273 self.invert = (self.uri, ROOM['style'], |
| 274 ROOM['inverted']) in self.graph | |
| 244 | 275 |
| 276 def poll(self): | |
| 277 closed = not self.pi.read(self.pinNumber) | |
| 262 | 278 if self.invert: |
| 279 closed = not closed | |
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280 |
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281 if self.lastClosed is not None and closed != self.lastClosed: |
| 262 | 282 log.debug('%s changed to %s', self.uri, closed) |
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283 oneshot = [ |
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284 (self.uri, ROOM['buttonState'], |
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285 ROOM['press'] if closed else ROOM['release']), |
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286 ] |
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287 else: |
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288 oneshot = [] |
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289 self.lastClosed = closed |
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290 |
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291 return {'latest': [ |
| 244 | 292 (self.uri, ROOM['buttonState'], |
| 293 ROOM['pressed'] if closed else ROOM['notPressed']), | |
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294 ], |
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295 'oneshot':oneshot} |
| 244 | 296 |
| 297 def watchPrefixes(self): | |
| 298 return [ | |
| 299 (self.uri, ROOM['buttonState']), | |
| 300 ] | |
| 301 | |
| 302 @register | |
|
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303 class OneWire(DeviceType): |
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304 """ |
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305 Also see /my/proj/ansible/roles/raspi_io_node/tasks/main.yml for |
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306 some system config that contains the pin number that you want to |
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307 use for onewire. The pin number in this config is currently ignored. |
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308 """ |
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309 deviceType = ROOM['OneWire'] |
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310 # deliberately written like arduinoNode's one for an easier merge. |
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311 def __init__(self, *a, **kw): |
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312 DeviceType.__init__(self, *a, **kw) |
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313 log.info("scan for w1 devices") |
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314 self._sensors = w1thermsensor.W1ThermSensor.get_available_sensors() |
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315 for s in self._sensors: |
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316 # Something looks different about these ids |
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317 # ('000003a5a94c') vs the ones I get from arduino |
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318 # ('2813bea50300003d'). Not sure if I'm parsing them |
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319 # differently or what. |
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320 s.uri = URIRef(os.path.join(self.uri, 'dev-%s' % s.id)) |
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321 log.info(' found temperature sensor %s' % s.uri) |
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322 |
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323 def poll(self): |
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324 try: |
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325 stmts = [] |
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326 for sensor in self._sensors: |
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327 stmts.append((self.uri, ROOM['connectedTo'], sensor.uri)) |
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328 try: |
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329 tempF = sensor.get_temperature(sensor.DEGREES_F) |
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330 stmts.append((sensor.uri, ROOM['temperatureF'], |
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331 # see round() note in arduinoNode/devices.py |
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332 Literal(round(tempF, 2)))) |
|
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333 except w1thermsensor.core.SensorNotReadyError as e: |
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334 log.warning(e) |
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335 |
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336 return stmts |
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337 except Exception as e: |
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338 log.error(e) |
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339 os.abort() |
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340 |
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341 def watchPrefixes(self): |
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342 return [(s.uri, ROOM['temperatureF']) for s in self._sensors] |
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343 |
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344 |
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345 @register |
| 210 | 346 class LedOutput(DeviceType): |
| 347 deviceType = ROOM['LedOutput'] | |
|
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348 |
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349 def hostStateInit(self): |
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350 self.value = 0 |
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351 |
| 210 | 352 def setup(self): |
| 353 self.pi.set_mode(self.pinNumber, pigpio.OUTPUT) | |
| 354 self.pi.set_PWM_frequency(self.pinNumber, 200) | |
| 355 self.pi.set_PWM_dutycycle(self.pinNumber, 0) | |
| 356 | |
| 357 def outputPatterns(self): | |
| 358 return [(self.uri, ROOM['brightness'], None)] | |
| 359 | |
| 360 def sendOutput(self, statements): | |
| 361 assert len(statements) == 1 | |
| 362 assert statements[0][:2] == (self.uri, ROOM['brightness']) | |
|
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363 self.value = float(statements[0][2]) |
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364 v = int(self.value * 255) |
| 210 | 365 self.pi.set_PWM_dutycycle(self.pinNumber, v) |
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366 |
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367 def hostStatements(self): |
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368 return [(self.uri, ROOM['brightness'], Literal(self.value))] |
| 210 | 369 |
| 370 def outputWidgets(self): | |
| 371 return [{ | |
| 372 'element': 'output-slider', | |
| 373 'min': 0, | |
| 374 'max': 1, | |
| 375 'step': 1 / 255, | |
| 376 'subj': self.uri, | |
| 377 'pred': ROOM['brightness'], | |
| 378 }] | |
| 379 | |
| 380 | |
| 205 | 381 @register |
| 382 class OnboardTemperature(DeviceType): | |
| 383 deviceType = ROOM['OnboardTemperature'] | |
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piNode poll switches much faster. mirror the logic in arduinoNode though vari-rate poll is not supported yet
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384 pollPeriod = 10 |
| 205 | 385 @classmethod |
| 386 def findInstances(cls, graph, board, pi): | |
| 259 | 387 log.debug('graph has any connected devices of type OnboardTemperature on %r?', board) |
| 207 | 388 for row in graph.query('''SELECT DISTINCT ?uri WHERE { |
| 205 | 389 ?board :onboardDevice ?uri . |
| 390 ?uri a :OnboardTemperature . | |
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piNode support for temp sensors. proper hostname lookup
drewp@bigasterisk.com
parents:
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changeset
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391 }''', initBindings=dict(board=board)): |
| 259 | 392 log.debug(' found %s', row.uri) |
| 205 | 393 yield cls(graph, row.uri, pi, pinNumber=None) |
| 394 | |
| 208 | 395 def poll(self): |
| 205 | 396 milliC = open('/sys/class/thermal/thermal_zone0/temp').read().strip() |
| 397 c = float(milliC) / 1000. | |
| 398 f = c * 1.8 + 32 | |
| 399 return [ | |
| 400 (self.uri, ROOM['temperatureF'], Literal(f, datatype=XSD['decimal'])), | |
| 401 ] | |
| 402 | |
| 403 def watchPrefixes(self): | |
| 404 # these uris will become dynamic! see note on watchPrefixes | |
| 405 # about eliminating it. | |
| 406 return [(self.uri, ROOM['temperatureF']), | |
| 407 ] | |
| 259 | 408 |
| 409 @register | |
| 410 class RgbPixels(DeviceType): | |
| 411 """chain of ws2812 rgb pixels on pin GPIO18""" | |
| 412 deviceType = ROOM['RgbPixels'] | |
| 413 | |
| 414 def hostStateInit(self): | |
| 415 px = self.graph.value(self.uri, ROOM['pixels']) | |
| 416 self.pixelUris = list(self.graph.items(px)) | |
| 417 self.values = dict((uri, Literal('#000000')) for uri in self.pixelUris) | |
| 418 self.replace = {'ledArray': 'leds_%s' % self.pinNumber, | |
| 419 'ledCount': len(self.pixelUris), | |
| 420 'pin': self.pinNumber, | |
| 421 'ledType': 'WS2812', | |
| 422 } | |
| 423 self.neo = NeoPixel.NeoPixel(len(self.values)) | |
| 424 self.neo.begin() | |
| 425 | |
| 426 def _rgbFromHex(self, h): | |
| 427 rrggbb = h.lstrip('#') | |
| 428 return [int(x, 16) for x in [rrggbb[0:2], rrggbb[2:4], rrggbb[4:6]]] | |
| 429 | |
| 430 def sendOutput(self, statements): | |
| 431 px, pred, color = statements[0] | |
| 432 if pred != ROOM['color']: | |
| 433 raise ValueError(pred) | |
| 434 rgb = self._rgbFromHex(color) | |
| 435 if px not in self.values: | |
| 436 raise ValueError(px) | |
| 437 self.values[px] = Literal(color) | |
| 438 self.neo.setPixelColor(self.pixelUris.index(px), rgb[0], rgb[1], rgb[2]) | |
| 439 self.neo.show() | |
| 440 | |
| 441 def hostStatements(self): | |
| 442 return [(uri, ROOM['color'], hexCol) | |
| 443 for uri, hexCol in self.values.items()] | |
| 444 | |
| 445 def outputPatterns(self): | |
| 446 return [(px, ROOM['color'], None) for px in self.pixelUris] | |
| 447 | |
| 448 def outputWidgets(self): | |
| 449 return [{ | |
| 450 'element': 'output-rgb', | |
| 451 'subj': px, | |
| 452 'pred': ROOM['color'], | |
| 453 } for px in self.pixelUris] | |
| 454 | |
| 205 | 455 |
| 182 | 456 def makeDevices(graph, board, pi): |
| 457 out = [] | |
| 458 for dt in sorted(_knownTypes, key=lambda cls: cls.__name__): | |
| 459 out.extend(dt.findInstances(graph, board, pi)) | |
| 460 return out | |
| 461 |