tools/mainhall-rgb.py

   1 #!/usr/bin/env python3
   2 # -*- coding: utf-8 -*-
   3
   4 import time
   5 import copy
   6 import json
   7 import requests
   8 import os
   9 from pylibcerebrum.serial_mux import SerialMux
  10
  11 BASE_URI        = 'http://10.0.1.43/dmxacl/json/'
  12 CBEAM           = 'http://c-beam.cbrp3.c-base.org/rpc/'
  13 PORT            = '/dev/serial/by-id/usb-FTDI_FT232R_USB_UART_A700fmkX-if00-port0'
  14 BAUDRATE        = 57600
  15 GAMMA           = 2.5
  16 CACERT          = os.path.join(os.path.dirname(__file__), 'cacert.pem')
  17
  18 s = SerialMux(PORT, BAUDRATE)
  19 print('discovering cerebrum devices')
  20 results = []
  21 while not results:
  22         results = s.discover()
  23 print(results)
  24 print('opening first device')
  25 g = s.open(0)
  26 print('initializing device')
  27 print(dir(g))
  28 g.schnurlinks.state = 1
  29 g.schnurmitte.state = 1
  30 g.schnurrechts.state = 1
  31 print('starting event loop')
  32
  33 def xform(o, i):
  34         c                       = (o/255)**(1/GAMMA) #inverse gamma correction
  35         c                       = round(c*4)
  36         c                       = (c+i)%5
  37         c                       = c/4
  38         return            round((c**GAMMA)*255)
  39
  40 def inc_color(r,g,b):
  41         state = requests.post(BASE_URI, data='{"method": "lightSync.pull", "params": [], "id": 0}').json()['result']
  42         for v in state:
  43                 v['red']        = xform(v['red'], r)
  44                 v['green']      = xform(v['green'], g)
  45                 v['blue']       = xform(v['blue'], b)
  46         try:
  47                 requests.post(BASE_URI, data=json.dumps({'method': 'lightSync.push', 'params': [state], 'id': 0}))
  48         except requests.HTTPError as e:
  49                 print('Cannot set DMX color:', e)
  50
  51 def sendstate(schnur, state):
  52         try:
  53                 requests.post(CBEAM, data=json.dumps({'method': 'barschnur', 'params': [schnur, state], 'id': 0}), verify=CACERT)
  54         except requests.HTTPError as e:
  55                 print('Cannot send event to c-beam:', e)
  56
  57 oldstate = None
  58 sr, sg, sb = False, False, False
  59 while 1:
  60         if g.schnurlinks.state:
  61                 if sr:
  62                         sendstate('links', False)
  63                         inc_color(1,0,0)
  64                 sr = False
  65         else:
  66                 if not sr:
  67                         sendstate('links', True)
  68                 sr = True
  69         if g.schnurmitte.state:
  70                 if sg:
  71                         sendstate('mitte', False)
  72                         inc_color(0,1,0)
  73                 sg = False
  74         else:
  75                 if not sg:
  76                         sendstate('mitte', True)
  77                 sg = True
  78         if g.schnurrechts.state:
  79                 if sb:
  80                         sendstate('rechts', False)
  81                         inc_color(0,0,1)
  82                 sb = False
  83         else:
  84                 if not sb:
  85                         sendstate('rechts', True)
  86                 sb = True
  87         time.sleep(0.1)
  88