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annotate service/starArduino/starArduino.py @ 828:a422d875d94d

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barcode support on star. triggers mpd song Ignore-this: 1038c3d0501bba595fbf701e30acac6 darcs-hash:20120304114228-312f9-8fc9a9198be2044359f35aebcd1c428a58cb4ea2.gz
author drewp <drewp@bigasterisk.com>
date Sun, 04 Mar 2012 03:42:28 -0800
parents bebb8f7c5a3e
children 0ab069867c64
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rev   line source
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1 """
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2 arduino driver for the nightlight+buttons+temp setup running on star
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3
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4 """
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5 from __future__ import division
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6
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7 import sys, jsonlib
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8 from twisted.internet import reactor, task
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9 from twisted.internet.task import LoopingCall
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10 import cyclone.web, restkit
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11
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12 sys.path.append("/my/proj/pixel/shiftweb")
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13 from drvarduino import ShiftbriteArduino
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14 from shiftweb import hexFromRgb, rgbFromHex
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15
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16 sys.path.append("/my/proj/homeauto/lib")
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17 from cycloneerr import PrettyErrorHandler
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18 from logsetup import log
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19
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20 sys.path.append("/my/proj/ariremote")
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21 from oscserver import ArduinoWatcher
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22
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23 class Index(PrettyErrorHandler, cyclone.web.RequestHandler):
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24 def get(self):
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25 self.settings.arduino.ping()
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26
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27 self.set_header("Content-Type", "application/xhtml+xml")
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28 self.write(open("index.html").read())
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29
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30 class Temperature(PrettyErrorHandler, cyclone.web.RequestHandler):
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31 def get(self):
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32 f = self.settings.arduino.getTemperature()
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33 self.set_header("Content-Type", "application/json")
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34 self.write(jsonlib.write({"temp" : f}))
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35
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36 class Brite(PrettyErrorHandler, cyclone.web.RequestHandler):
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37 def get(self, pos):
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38 self.set_header("Content-Type", "text/plain")
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39 self.write(hexFromRgb(self.settings.colors[int(pos)]))
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40
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41 def put(self, pos):
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42 channel = int(pos)
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43 colors = self.settings.colors
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44 colors[channel] = rgbFromHex(self.request.body)
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45 self.settings.arduino.update(colors)
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46 self.set_header("Content-Type", "text/plain")
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47 self.write("updated %r" % colors)
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48
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49 class Barcode(PrettyErrorHandler, cyclone.web.RequestHandler):
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50 def get(self):
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51 self.set_header("Content-Type", "text/plain")
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52 ser = self.settings.arduino.ser
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53 ser.write("\x60\x02")
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54 self.write(str(ser.readJson()))
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55
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56 class BarcodeBeep(PrettyErrorHandler, cyclone.web.RequestHandler):
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57 def put(self):
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58 self.set_header("Content-Type", "text/plain")
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59 ser = self.settings.arduino.ser
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60 ser.write("\x60\x03")
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61 self.write(str(ser.readJson()))
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62
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63 def barcodeWatch(arduino, postBarcode):
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64 try:
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65 arduino.ser.write("\xff\xfb")
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66 ret = arduino.readJson()
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67 if ret['barcode']:
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68 if ret['barcode'] == "27 80 48 13 ":
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69 pass # scanner's beep response
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70 else:
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71 arduino.ser.write("\xff\xfc")
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72 arduino.readJson() # my beep response
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73 s = ''.join(chr(int(x)) for x in ret['barcode'].split())
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74 for code in s.split('\x02'):
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75 if not code:
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76 continue
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77 if not code.endswith('\x03'):
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78 print "couldn't read %r" % code
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79 return
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80 codeType = {'A':'UPC-A',
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81 'B':'JAN-8',
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82 'E':'UPC-E',
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83 'N':'NW-7',
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84 'C':'CODE39',
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85 'I':'ITF',
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86 'K':'CODE128',
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87 }[code[0]]
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88 code = code[1:-1]
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89 postBarcode.post(payload=jsonlib.dumps(
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90 {'barcodeType':codeType, 'code':code}),
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91 headers={"content-type" :
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92 "application/json"})
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93
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94 except ValueError, e:
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95 print "err", e
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96
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97
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98 class Graph(PrettyErrorHandler, cyclone.web.RequestHandler):
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99 def get(self):
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100 raise NotImplementedError
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101
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102 if __name__ == '__main__':
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103 class A(ShiftbriteArduino):
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104 # from loggingserial.py
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105 def readJson(self):
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106 line = ''
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107 while True:
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108 c = self.ser.read(1)
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109 #print "gotchar", repr(c)
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110 if c:
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111 line += c
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112 if c == "\n":
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113 break
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114 else:
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115 raise ValueError("timed out waiting for chars")
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116 return jsonlib.loads(line)
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117
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118 sb = A(numChannels=3)
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119
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120 colors = [(0,0,0)] * sb.numChannels
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121
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122 aw = ArduinoWatcher(sb)
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123 task.LoopingCall(aw.poll).start(1.0/20)
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124
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125 postBarcode = restkit.Resource('http://star:9011/barcodeScan')
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126 task.LoopingCall(barcodeWatch, sb, postBarcode).start(interval=.5)
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127
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128 reactor.listenTCP(9014, cyclone.web.Application([
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129 (r'/', Index),
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130 (r'/temperature', Temperature),
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131 (r'/brite/(\d+)', Brite),
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132 (r'/barcode', Barcode),
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133 (r'/barcode/beep', BarcodeBeep),
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134 (r'/graph', Graph),
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135 ], arduino=sb, colors=colors))
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136 reactor.run()