Mercurial > code > home > repos > homeauto
annotate service/piNode/devices.py @ 368:194583bd603e
ws2812 numleds fix
Ignore-this: 300849ded4dea42a447e3415f2f26a5d
| author | drewp@bigasterisk.com |
|---|---|
| date | Sun, 11 Nov 2018 23:56:33 -0800 |
| parents | 6aa5beb63d9e |
| children | 38a74c43639c |
| rev | line source |
|---|---|
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1 """ |
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2 https://github.com/juniorug/libsensorPy is a similar project |
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3 """ |
| 182 | 4 from __future__ import division |
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5 |
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6 import time, logging, os |
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7 from rdflib import Namespace, URIRef, Literal |
| 274 | 8 from twisted.internet import reactor |
| 182 | 9 |
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10 from devices_shared import RgbPixelsAnimation |
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11 |
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12 log = logging.getLogger() |
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13 ROOM = Namespace('http://projects.bigasterisk.com/room/') |
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14 XSD = Namespace('http://www.w3.org/2001/XMLSchema#') |
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15 RDFS = Namespace('http://www.w3.org/2000/01/rdf-schema#') |
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16 |
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17 try: |
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18 import pigpio |
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19 except ImportError: |
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20 pigpio = None |
| 367 | 21 import w1thermsensor |
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22 try: |
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23 import rpi_ws281x |
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24 except ImportError: |
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25 rpi_ws281x = None |
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26 |
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27 def setupPwm(pi, pinNumber, hz=8000): |
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28 pi.set_mode(pinNumber, pigpio.OUTPUT) |
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29 # see http://abyz.co.uk/rpi/pigpio/cif.html#gpioCfgClock |
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30 # and http://abyz.co.uk/rpi/pigpio/cif.html#gpioSetPWMfrequency |
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31 actual = pi.set_PWM_frequency(pinNumber, hz) |
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32 if actual != hz: |
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33 raise ValueError('pwm actual=%s' % actual) |
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34 pi.set_PWM_dutycycle(pinNumber, 0) |
| 259 | 35 |
| 182 | 36 |
| 37 class DeviceType(object): | |
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38 deviceType = NotImplementedError |
| 182 | 39 @classmethod |
| 40 def findInstances(cls, graph, board, pi): | |
| 41 """ | |
| 42 return any number of instances of this class for all the separately | |
| 43 controlled devices on the board. Two LEDS makes two instances, | |
| 44 but two sensors on the same onewire bus makes only one device | |
| 45 (which yields more statements). | |
| 46 """ | |
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47 log.debug("graph has any connected devices of type %s?", cls.deviceType) |
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48 for row in graph.query("""SELECT ?dev ?gpioNumber WHERE { |
| 182 | 49 ?board :hasPin ?pin . |
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50 ?pin :gpioNumber ?gpioNumber; |
| 182 | 51 :connectedTo ?dev . |
| 52 ?dev a ?thisType . | |
| 53 } ORDER BY ?dev""", | |
| 54 initBindings=dict(board=board, | |
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55 thisType=cls.deviceType)): |
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56 yield cls(graph, row.dev, pi, int(row.gpioNumber)) |
| 182 | 57 |
| 58 def __init__(self, graph, uri, pi, pinNumber): | |
| 59 self.graph, self.uri, self.pi = graph, uri, pi | |
| 60 self.pinNumber = pinNumber | |
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61 self.hostStateInit() |
| 182 | 62 |
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63 def hostStateInit(self): |
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64 """ |
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65 If you don't want to use __init__, you can use this to set up |
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66 whatever storage you might need for hostStatements |
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67 """ |
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68 |
| 182 | 69 def description(self): |
| 70 return { | |
| 71 'uri': self.uri, | |
| 72 'className': self.__class__.__name__, | |
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73 'pinNumber': getattr(self, 'pinNumber', None), |
| 182 | 74 'outputPatterns': self.outputPatterns(), |
| 75 'watchPrefixes': self.watchPrefixes(), | |
| 76 'outputWidgets': self.outputWidgets(), | |
| 77 } | |
| 78 | |
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79 def hostStatements(self): |
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80 """ |
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81 Like readFromPoll but these statements come from the host-side |
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82 python code, not the connected device. Include output state |
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83 (e.g. light brightness) if its master version is in this |
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84 object. This method is called on /graph requests so it should |
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85 be fast. |
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86 """ |
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87 return [] |
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88 |
| 182 | 89 def watchPrefixes(self): |
| 90 """ | |
| 91 subj,pred pairs of the statements that might be returned from | |
| 92 readFromPoll, so the dashboard knows what it should | |
| 93 watch. This should be eliminated, as the dashboard should just | |
| 94 always watch the whole tree of statements starting self.uri | |
| 95 """ | |
| 96 return [] | |
| 97 | |
| 98 def poll(self): | |
| 99 return [] # statements | |
| 100 | |
| 101 def outputPatterns(self): | |
| 102 """ | |
| 103 Triple patterns, using None as a wildcard, that should be routed | |
| 104 to sendOutput | |
| 105 """ | |
| 106 return [] | |
| 107 | |
| 108 def outputWidgets(self): | |
| 109 """ | |
| 110 structs to make output widgets on the dashboard. ~1 of these per | |
| 111 handler you have in sendOutput | |
| 112 """ | |
| 113 return [] | |
| 114 | |
| 115 def sendOutput(self, statements): | |
| 116 """ | |
| 117 If we got statements that match this class's outputPatterns, this | |
| 118 will be called with the statements that matched. | |
| 119 | |
| 120 Todo: it would be fine to read back confirmations or | |
| 121 whatever. Just need a way to collect them into graph statements. | |
| 122 """ | |
| 123 raise NotImplementedError | |
| 124 | |
| 125 _knownTypes = set() | |
| 126 def register(deviceType): | |
| 127 _knownTypes.add(deviceType) | |
| 128 return deviceType | |
| 129 | |
| 130 @register | |
| 131 class MotionSensorInput(DeviceType): | |
| 290 | 132 """ |
| 133 0 30s 60s 90s 10min | |
| 134 | | | | ... | | |
| 135 Sensor input ******** ** ******* **** | |
| 136 :sees output ........ .. ....... .... | |
| 137 :seesRecently ............................................................. | |
| 138 :seesRecently30 .................................... | |
| 139 :motionStart x x x x | |
| 140 :motionStart30 x x | |
| 141 """ | |
| 142 # compare motion sensor lib at | |
| 143 # https://gpiozero.readthedocs.org/en/v1.2.0/api_input.html#motion-sensor-d-sun-pir | |
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144 # which is a bit fancier |
| 182 | 145 deviceType = ROOM['MotionSensor'] |
| 146 | |
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147 def __init__(self, graph, uri, pi, pinNumber): |
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148 super(MotionSensorInput, self).__init__(graph, uri, pi, pinNumber) |
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149 self.pi.set_mode(pinNumber, pigpio.INPUT) |
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150 self.pi.set_pull_up_down(pinNumber, pigpio.PUD_DOWN) |
| 182 | 151 |
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152 def hostStateInit(self): |
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153 self.lastRead = None |
| 290 | 154 self.lastMotionStart30 = 0 |
| 155 self.lastMotionStart90 = 0 | |
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156 |
| 182 | 157 def poll(self): |
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158 motion = self.pi.read(self.pinNumber) |
| 290 | 159 now = time.time() |
| 182 | 160 |
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161 oneshot = [] |
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162 if self.lastRead is not None and motion != self.lastRead: |
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163 oneshot = [(self.uri, ROOM['sees'], ROOM['motionStart'])] |
| 290 | 164 for v, t in [('lastMotionStart30', 30), ('lastMotionStart90', 90)]: |
| 165 if now - getattr(self, v) > t: | |
| 166 oneshot.append((self.uri, ROOM['sees'], ROOM['motionStart%s' % t])) | |
| 167 setattr(self, v, now) | |
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168 self.lastRead = motion |
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169 |
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170 return {'latest': [ |
| 182 | 171 (self.uri, ROOM['sees'], |
| 172 ROOM['motion'] if motion else ROOM['noMotion']), | |
| 290 | 173 ] + self.recentMotionStatements(now, motion), |
| 267 | 174 'oneshot': oneshot} |
| 182 | 175 |
| 290 | 176 def recentMotionStatements(self, now, motion): |
| 182 | 177 if not hasattr(self, 'lastMotionTime'): |
| 178 self.lastMotionTime = 0 | |
| 179 if motion: | |
| 180 self.lastMotionTime = now | |
| 267 | 181 dt = now - self.lastMotionTime |
| 182 return [(self.uri, ROOM['seesRecently'], | |
| 183 ROOM['motion'] if (dt < 60 * 10) else ROOM['noMotion']), | |
| 184 (self.uri, ROOM['seesRecently30'], | |
| 185 ROOM['motion'] if (dt < 30) else ROOM['noMotion'])] | |
| 182 | 186 |
| 187 def watchPrefixes(self): | |
| 188 return [ | |
| 189 (self.uri, ROOM['sees']), | |
| 190 (self.uri, ROOM['seesRecently']), | |
| 267 | 191 (self.uri, ROOM['seesRecently30']), |
| 182 | 192 ] |
| 193 | |
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194 |
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195 @register |
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196 class RgbStrip(DeviceType): |
| 220 | 197 """3 PWMs for r/g/b on a strip""" |
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198 # pigpio daemon is working fine, but |
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199 # https://github.com/RPi-Distro/python-gpiozero/blob/59ba7154c5918745ac894ea03503667d6473c760/gpiozero/output_devices.py#L213 |
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200 # can also apparently do PWM |
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201 deviceType = ROOM['RgbStrip'] |
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202 |
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203 @classmethod |
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204 def findInstances(cls, graph, board, pi): |
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205 for row in graph.query("""SELECT DISTINCT ?dev ?r ?g ?b WHERE { |
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206 ?board |
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207 :hasPin ?rpin; |
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208 :hasPin ?gpin; |
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209 :hasPin ?bpin . |
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210 ?dev a :RgbStrip; |
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211 :redChannel ?rpin; |
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212 :greenChannel ?gpin; |
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213 :blueChannel ?bpin . |
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214 ?rpin :gpioNumber ?r . |
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215 ?gpin :gpioNumber ?g . |
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216 ?bpin :gpioNumber ?b . |
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217 } ORDER BY ?dev""", |
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218 initBindings=dict(board=board), |
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219 initNs={'': ROOM}): |
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220 log.debug('found rgb %r', row) |
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221 yield cls(graph, row.dev, pi, row.r, row.g, row.b) |
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222 |
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223 def __init__(self, graph, uri, pi, r, g, b): |
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224 self.graph, self.uri, self.pi = graph, uri, pi |
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225 self.rgb = map(int, [r, g, b]) |
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226 self.value = '#000000' |
|
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227 |
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228 def setup(self): |
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229 for i in self.rgb: |
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266
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230 setupPwm(self.pi, i) |
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231 |
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232 def hostStatements(self): |
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233 return [(self.uri, ROOM['color'], Literal(self.value))] |
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234 |
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235 def outputPatterns(self): |
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236 return [(self.uri, ROOM['color'], None)] |
| 220 | 237 |
| 238 def _rgbFromHex(self, h): | |
| 239 rrggbb = h.lstrip('#') | |
| 240 return [int(x, 16) for x in [rrggbb[0:2], rrggbb[2:4], rrggbb[4:6]]] | |
|
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241 |
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242 def sendOutput(self, statements): |
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243 assert len(statements) == 1 |
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244 assert statements[0][:2] == (self.uri, ROOM['color']) |
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245 |
| 220 | 246 rgb = self._rgbFromHex(statements[0][2]) |
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247 self.value = statements[0][2] |
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248 |
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249 for (i, v) in zip(self.rgb, rgb): |
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250 self.pi.set_PWM_dutycycle(i, v) |
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251 |
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252 def outputWidgets(self): |
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253 return [{ |
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254 'element': 'output-rgb', |
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255 'subj': self.uri, |
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256 'pred': ROOM['color'], |
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257 }] |
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258 |
| 210 | 259 |
| 260 @register | |
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261 class TempHumidSensor(DeviceType): |
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262 deviceType = ROOM['TempHumidSensor'] |
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263 pollPeriod = 5 |
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264 |
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265 def __init__(self, *a, **kw): |
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266 DeviceType.__init__(self, *a, **kw) |
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267 import DHT22 |
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268 self.sens = DHT22.sensor(self.pi, self.pinNumber) |
| 367 | 269 self.recentLowTemp = (0, None) # time, temp |
| 270 self.recentPeriodSec = 30 | |
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271 |
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272 def poll(self): |
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273 stmts = set() |
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274 |
| 367 | 275 now = time.time() |
| 276 if self.recentLowTemp[0] < now - self.recentPeriodSec: | |
| 277 self.recentLowTemp = (0, None) | |
| 278 | |
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279 if self.sens.staleness() < self.pollPeriod * 2: |
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280 humid, tempC = self.sens.humidity(), self.sens.temperature() |
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281 if humid > -999: |
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282 stmts.add((self.uri, ROOM['humidity'], Literal(round(humid, 2)))) |
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283 else: |
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284 stmts.add((self.uri, RDFS['comment'], Literal('No recent humidity measurement'))) |
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285 if tempC > -999: |
| 367 | 286 # see round() note in arduinoNode/devices.py |
| 287 tempF = round(tempC * 9 / 5 + 32, 2) | |
| 288 stmts.add((self.uri, ROOM['temperatureF'], Literal(tempF))) | |
| 289 if self.recentLowTemp[1] is None or tempF < self.recentLowTemp[1]: | |
| 290 self.recentLowTemp = (now, tempF) | |
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291 else: |
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292 stmts.add((self.uri, RDFS['comment'], Literal('No recent temperature measurement'))) |
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293 else: |
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294 stmts.add((self.uri, RDFS['comment'], |
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295 Literal('No recent DHT response (%.02f sec old)' % self.sens.staleness()))) |
| 367 | 296 |
| 297 if self.recentLowTemp[1] is not None: | |
| 298 stmts.add((self.uri, ROOM['recentLowTemperatureF'], Literal(self.recentLowTemp[1]))) | |
|
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299 |
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300 self.sens.trigger() |
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301 |
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302 return stmts |
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303 |
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304 def watchPrefixes(self): |
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305 return [ |
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306 (self.uri, ROOM['temperatureF']), |
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307 (self.uri, ROOM['humidity']), |
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308 ] |
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309 |
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310 @register |
| 244 | 311 class PushbuttonInput(DeviceType): |
| 312 """add a switch to ground; we'll turn on pullup""" | |
| 313 deviceType = ROOM['Pushbutton'] | |
| 314 | |
| 315 def __init__(self, *a, **kw): | |
| 316 DeviceType.__init__(self, *a, **kw) | |
| 317 log.debug("setup switch on %r", self.pinNumber) | |
| 318 self.pi.set_mode(self.pinNumber, pigpio.INPUT) | |
| 319 self.pi.set_pull_up_down(self.pinNumber, pigpio.PUD_UP) | |
|
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320 self.lastClosed = None |
| 262 | 321 self.invert = (self.uri, ROOM['style'], |
| 322 ROOM['inverted']) in self.graph | |
| 244 | 323 |
| 324 def poll(self): | |
| 325 closed = not self.pi.read(self.pinNumber) | |
| 262 | 326 if self.invert: |
| 327 closed = not closed | |
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328 |
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329 if self.lastClosed is not None and closed != self.lastClosed: |
| 262 | 330 log.debug('%s changed to %s', self.uri, closed) |
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331 oneshot = [ |
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332 (self.uri, ROOM['buttonState'], |
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333 ROOM['press'] if closed else ROOM['release']), |
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334 ] |
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335 else: |
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336 oneshot = [] |
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337 self.lastClosed = closed |
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338 |
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339 return {'latest': [ |
| 244 | 340 (self.uri, ROOM['buttonState'], |
| 341 ROOM['pressed'] if closed else ROOM['notPressed']), | |
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342 ], |
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343 'oneshot':oneshot} |
| 244 | 344 |
| 345 def watchPrefixes(self): | |
| 346 return [ | |
| 347 (self.uri, ROOM['buttonState']), | |
| 348 ] | |
| 349 | |
| 350 @register | |
|
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351 class OneWire(DeviceType): |
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352 """ |
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353 Also see /my/proj/ansible/roles/raspi_io_node/tasks/main.yml for |
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354 some system config that contains the pin number that you want to |
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355 use for onewire. The pin number in this config is currently ignored. |
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356 """ |
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357 deviceType = ROOM['OneWire'] |
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358 pollPeriod = 2 |
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359 # deliberately written like arduinoNode's one for an easier merge. |
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360 def __init__(self, *a, **kw): |
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361 DeviceType.__init__(self, *a, **kw) |
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362 log.info("scan for w1 devices") |
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363 self._sensors = w1thermsensor.W1ThermSensor.get_available_sensors() |
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364 for s in self._sensors: |
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365 # Something looks different about these ids |
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366 # ('000003a5a94c') vs the ones I get from arduino |
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367 # ('2813bea50300003d'). Not sure if I'm parsing them |
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368 # differently or what. |
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369 s.uri = URIRef(os.path.join(self.uri, 'dev-%s' % s.id)) |
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370 log.info(' found temperature sensor %s' % s.uri) |
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371 |
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372 def poll(self): |
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373 try: |
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374 stmts = [] |
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375 for sensor in self._sensors: |
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376 stmts.append((self.uri, ROOM['connectedTo'], sensor.uri)) |
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377 try: |
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378 tempF = sensor.get_temperature(sensor.DEGREES_F) |
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379 stmts.append((sensor.uri, ROOM['temperatureF'], |
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380 # see round() note in arduinoNode/devices.py |
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381 Literal(round(tempF, 2)))) |
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382 except w1thermsensor.core.SensorNotReadyError as e: |
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383 log.warning(e) |
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384 |
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385 return stmts |
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386 except Exception as e: |
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387 log.error(e) |
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388 os.abort() |
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389 |
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390 def watchPrefixes(self): |
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391 return [(s.uri, ROOM['temperatureF']) for s in self._sensors] |
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392 |
| 274 | 393 class FilteredValue(object): |
| 394 def __init__(self, setter, | |
| 395 slew=2.0, # step/sec max slew rate | |
| 396 accel=5, # step/sec^2 acceleration | |
| 397 ): | |
| 398 self.setter = setter | |
| 399 self.slew, self.accel = slew, accel | |
| 400 | |
| 401 self.x = None | |
| 402 self.dx = 0 | |
| 403 self.goal = self.x | |
| 404 self.lastStep = 0 | |
| 405 | |
| 406 def set(self, goal): | |
| 407 self.goal = goal | |
| 408 self.step() | |
| 409 | |
| 410 def step(self): | |
| 411 now = time.time() | |
| 412 dt = min(.1, now - self.lastStep) | |
| 413 self.lastStep = now | |
| 414 | |
| 415 if self.x is None: | |
| 416 self.x = self.goal | |
| 417 | |
| 418 if self.goal > self.x: | |
| 419 self.dx = min(self.slew, self.dx + self.accel * dt) | |
| 420 else: | |
| 421 self.dx = max(-self.slew, self.dx - self.accel * dt) | |
| 422 | |
| 423 nextX = self.x + self.dx * dt | |
| 424 if self.x == self.goal or (self.x < self.goal < nextX) or (self.x > self.goal > nextX): | |
| 425 self.x = self.goal | |
| 426 self.dx = 0 | |
| 427 else: | |
| 428 self.x = nextX | |
| 429 reactor.callLater(.05, self.step) | |
| 430 | |
| 431 #print "x= %(x)s dx= %(dx)s goal= %(goal)s" % self.__dict__ | |
| 432 self.setter(self.x) | |
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433 |
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434 @register |
| 210 | 435 class LedOutput(DeviceType): |
| 436 deviceType = ROOM['LedOutput'] | |
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437 |
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438 def hostStateInit(self): |
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439 self.value = 0 |
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440 if (self.uri, ROOM['fade'], None) in self.graph: |
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441 # incomplete- the object could be fade settings |
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442 self.fv = FilteredValue(self._setPwm) |
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443 else: |
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444 _setPwm = self._setPwm |
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445 class Instant(object): |
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446 def set(self, goal): |
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447 _setPwm(goal) |
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448 self.fv = Instant() |
| 289 | 449 self.gamma = float(self.graph.value(self.uri, ROOM['gamma'], default=1)) |
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450 |
| 210 | 451 def setup(self): |
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452 setupPwm(self.pi, self.pinNumber) |
| 210 | 453 |
| 454 def outputPatterns(self): | |
| 455 return [(self.uri, ROOM['brightness'], None)] | |
| 456 | |
| 457 def sendOutput(self, statements): | |
| 458 assert len(statements) == 1 | |
| 459 assert statements[0][:2] == (self.uri, ROOM['brightness']) | |
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460 self.value = float(statements[0][2]) |
| 274 | 461 self.fv.set(self.value) |
| 462 | |
| 463 def _setPwm(self, x): | |
| 324 | 464 v = max(0, min(255, int((x ** self.gamma)* 255))) |
| 210 | 465 self.pi.set_PWM_dutycycle(self.pinNumber, v) |
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466 |
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467 def hostStatements(self): |
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468 return [(self.uri, ROOM['brightness'], Literal(self.value))] |
| 210 | 469 |
| 470 def outputWidgets(self): | |
| 471 return [{ | |
| 472 'element': 'output-slider', | |
| 473 'min': 0, | |
| 474 'max': 1, | |
| 475 'step': 1 / 255, | |
| 476 'subj': self.uri, | |
| 477 'pred': ROOM['brightness'], | |
| 478 }] | |
| 479 | |
| 480 | |
| 205 | 481 @register |
| 482 class OnboardTemperature(DeviceType): | |
| 483 deviceType = ROOM['OnboardTemperature'] | |
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484 pollPeriod = 10 |
| 205 | 485 @classmethod |
| 486 def findInstances(cls, graph, board, pi): | |
| 259 | 487 log.debug('graph has any connected devices of type OnboardTemperature on %r?', board) |
| 207 | 488 for row in graph.query('''SELECT DISTINCT ?uri WHERE { |
| 205 | 489 ?board :onboardDevice ?uri . |
| 490 ?uri a :OnboardTemperature . | |
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491 }''', initBindings=dict(board=board)): |
| 259 | 492 log.debug(' found %s', row.uri) |
| 205 | 493 yield cls(graph, row.uri, pi, pinNumber=None) |
| 494 | |
| 208 | 495 def poll(self): |
| 205 | 496 milliC = open('/sys/class/thermal/thermal_zone0/temp').read().strip() |
| 497 c = float(milliC) / 1000. | |
| 498 f = c * 1.8 + 32 | |
| 499 return [ | |
| 500 (self.uri, ROOM['temperatureF'], Literal(f, datatype=XSD['decimal'])), | |
| 501 ] | |
| 502 | |
| 503 def watchPrefixes(self): | |
| 504 # these uris will become dynamic! see note on watchPrefixes | |
| 505 # about eliminating it. | |
| 506 return [(self.uri, ROOM['temperatureF']), | |
| 507 ] | |
| 259 | 508 |
| 509 @register | |
| 510 class RgbPixels(DeviceType): | |
| 511 """chain of ws2812 rgb pixels on pin GPIO18""" | |
| 512 deviceType = ROOM['RgbPixels'] | |
| 513 | |
| 514 def hostStateInit(self): | |
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515 self.anim = RgbPixelsAnimation(self.graph, self.uri, self.updateOutput) |
| 368 | 516 log.debug('%s maxIndex = %s', self.uri, self.anim.maxIndex()) |
| 517 self.neo = rpi_ws281x.Adafruit_NeoPixel(self.anim.maxIndex() + 1, pin=18) | |
| 259 | 518 self.neo.begin() |
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519 |
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520 colorOrder, stripType = self.anim.getColorOrder(self.graph, self.uri) |
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521 |
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522 def sendOutput(self, statements): |
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523 self.anim.onStatements(statements) |
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524 |
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525 def updateOutput(self): |
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526 if 0: |
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527 for _, _, sg in self.anim.groups.values(): |
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528 print sg.uri, sg.current |
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529 print list(self.anim.currentColors()) |
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530 return |
|
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531 |
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532 for idx, (r, g, b) in self.anim.currentColors(): |
| 368 | 533 log.debug('out color %s (%s,%s,%s)', idx, r, g, b) |
|
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534 self.neo.setPixelColorRGB(idx, r, g, b) |
| 259 | 535 self.neo.show() |
| 536 | |
|
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537 def poll(self): |
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538 self.anim.step() |
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539 return [] |
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540 |
| 259 | 541 def hostStatements(self): |
|
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542 return self.anim.hostStatements() |
| 259 | 543 |
| 544 def outputPatterns(self): | |
|
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545 return self.anim.outputPatterns() |
| 259 | 546 |
| 547 def outputWidgets(self): | |
|
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548 return self.anim.outputWidgets() |
| 259 | 549 |
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550 @register |
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551 class Lcd8544(DeviceType): |
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552 """PCD8544 lcd (nokia 5110)""" |
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553 deviceType = ROOM['RgbStrip'] |
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554 |
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555 @classmethod |
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556 def findInstances(cls, graph, board, pi): |
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557 for row in graph.query(""" |
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558 SELECT DISTINCT ?dev ?din ?clk ?dc ?rst WHERE { |
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559 ?dev a :Lcd8544 . |
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560 ?board :hasPin ?dinPin . ?dev :din ?dinPin . ?dinPin :gpioNumber ?din . |
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561 ?board :hasPin ?clkPin . ?dev :clk ?clkPin . ?clkPin :gpioNumber ?clk . |
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562 ?board :hasPin ?dcPin . ?dev :dc ?dcPin . ?dcPin :gpioNumber ?dc . |
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563 ?board :hasPin ?rstPin . ?dev :rst ?rstPin . ?rstPin :gpioNumber ?rst . |
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564 } ORDER BY ?dev""", |
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565 initBindings=dict(board=board), |
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566 initNs={'': ROOM}): |
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567 log.debug('found lcd %r', row) |
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568 yield cls(graph, row.dev, pi, |
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569 int(row.din), int(row.clk), |
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570 int(row.dc), int(row.rst)) |
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571 |
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572 def __init__(self, graph, uri, pi, din, clk, dc, rst): |
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573 super(Lcd8544, self).__init__(graph, uri, pi, None) |
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574 |
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575 |
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576 import RPi.GPIO |
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577 import Adafruit_Nokia_LCD |
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578 import Adafruit_GPIO.SPI |
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579 self.lcd = Adafruit_Nokia_LCD.PCD8544( |
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580 dc=8, rst=7, |
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581 spi=Adafruit_GPIO.SPI.BitBang( |
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582 Adafruit_Nokia_LCD.GPIO.RPiGPIOAdapter(RPi.GPIO), |
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583 sclk=clk, |
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584 mosi=din)) |
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585 self.lcd.begin(contrast=60) |
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586 |
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587 def hostStatements(self): |
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588 return [] |
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589 return [(self.uri, ROOM['color'], Literal(self.value))] |
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590 |
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591 def outputPatterns(self): |
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592 return [] |
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593 return [(self.uri, ROOM['color'], None)] |
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594 |
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595 def sendOutput(self, statements): |
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596 return |
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597 assert len(statements) == 1 |
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598 assert statements[0][:2] == (self.uri, ROOM['color']) |
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599 |
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600 rgb = self._rgbFromHex(statements[0][2]) |
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601 self.value = statements[0][2] |
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602 |
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603 for (i, v) in zip(self.rgb, rgb): |
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604 self.pi.set_PWM_dutycycle(i, v) |
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605 |
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606 def outputWidgets(self): |
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607 return [] |
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608 return [{ |
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609 'element': 'output-rgb', |
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610 'subj': self.uri, |
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611 'pred': ROOM['color'], |
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612 }] |
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613 |
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614 |
| 205 | 615 |
| 182 | 616 def makeDevices(graph, board, pi): |
| 617 out = [] | |
| 618 for dt in sorted(_knownTypes, key=lambda cls: cls.__name__): | |
| 619 out.extend(dt.findInstances(graph, board, pi)) | |
| 620 return out | |
| 621 |