scripts/christmas.py

   1 #!/usr/bin/env python
   2 # -*- coding: iso-8859-15 -*-
   3
   4 import rospy
   5 from random import *
   6 from datetime import datetime
   7 from wild_thumper.msg import *
   8
   9 max_val = 10
  10 light = 0
  11 ldr_thres = 8
  12
  13 def sensorReceived(msg):
  14         global light
  15         light = msg.light
  16
  17 if __name__ == "__main__":
  18         rospy.init_node('christmas')
  19         pub = rospy.Publisher('led_stripe', LedStripe, queue_size=10)
  20         rospy.Subscriber("/sensors", Sensor, sensorReceived)
  21         rate = rospy.Rate(2)
  22         val = max_val
  23         while not rospy.is_shutdown():
  24                 if light <= ldr_thres or val != 0:
  25                         now = datetime.now()
  26                         if light <= ldr_thres and now.hour >= 18 and now.hour < 22:
  27                                 val = max_val
  28                         else:
  29                                 val = 0
  30                         msg = LedStripe()
  31                         msg.leds = [
  32                                         Led(4, randint(0, val), randint(0, val), randint(0, val)),
  33                                         Led(5, randint(0, val), randint(0, val), randint(0, val)),
  34                                         Led(6, randint(0, val), randint(0, val), randint(0, val)),
  35                                         Led(7, randint(0, val), randint(0, val), randint(0, val))
  36                                         ]
  37                         pub.publish(msg)
  38                 rate.sleep()