battery_guard.py
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00001 #!/usr/bin/env python
00002 
00003 import rospy
00004 
00005 from sound_play.msg import SoundRequest
00006 from sound_play.libsoundplay import SoundClient
00007 
00008 if __name__ == '__main__':
00009         rospy.init_node('battery_guard')
00010         soundclient = SoundClient()
00011 
00012         last_complain= rospy.Time()
00013         r= rospy.Rate(.1)
00014         while not rospy.is_shutdown():
00015                 with open('/sys/class/power_supply/BAT0/capacity') as f:
00016                         capacity= int(f.readline().rstrip())
00017                 with open('/sys/class/power_supply/BAT0/status') as f:
00018                         status= f.readline().rstrip()
00019                 if status != "Charging" and rospy.Time.now() - last_complain > rospy.Duration(60):
00020                         if capacity < 10:
00021                                 rospy.logerr("No battery power remaining. Connect the robot laptop to power immediately.")
00022                                 soundclient.play(SoundRequest.NEEDS_PLUGGING_BADLY)
00023                                 last_complain= rospy.Time.now()
00024                         elif capacity < 15:
00025                                 rospy.logwarn("Only little battery power remaining. Please connect the robot laptop to power.")
00026                                 soundclient.play(SoundRequest.NEEDS_PLUGGING)
00027                                 last_complain= rospy.Time.now()
00028                 r.sleep()


battery_guard
Author(s): Michael Goerner
autogenerated on Wed May 24 2017 03:02:46