2024-04-29 07:04:45 +00:00
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import serial
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import os
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import time
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import subprocess
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2024-07-13 16:22:47 +00:00
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import logging
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import threading
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from logging.handlers import RotatingFileHandler, TimedRotatingFileHandler
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import signal
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2024-04-29 07:04:45 +00:00
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2024-07-13 16:22:47 +00:00
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class GracefulKiller:
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kill_now = False
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def __init__(self):
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signal.signal(signal.SIGINT, self.exit_gracefully)
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signal.signal(signal.SIGTERM, self.exit_gracefully)
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def exit_gracefully(self, signum, frame):
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self.kill_now = True
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log.info('UPS service is being stopped')
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class UPS:
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def __init__(self):
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ups_loc = subprocess.check_output(['sudo','/bin/bash','kill.sh'])
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ups_loc = ups_loc.decode("UTF-8")
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ups_loc = ups_loc.replace("\n", "")
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self.ser = serial.Serial(ups_loc, 9600)
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def get_firmver(self):
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return self.__get('@Fx#').replace("F","").replace("-",".")
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def get_curvol(self):
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return self.__get('@V0#').replace("V","")
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def get_chargestat(self):
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a = self.__get('@C0#').replace("","")
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if a == "CF0C0":
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return "err"
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elif a == "CF1C0":
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return "chg"
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elif a == "CF0C1":
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return "full"
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elif a == "CF1C1":
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return "dch"
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def shutdown(self):
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self.__get('@Px#')
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def __get(self,a):
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a = bytes(a, 'utf-8')
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self.ser.write(a)
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a = self.ser.readline().decode("UTF-8")
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a = a.replace("\n", "")
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a = a.replace("\r", "")
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a = a.replace("#", "")
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a = a.replace("@", "")
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return(a)
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class Logger:
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def __init__(self):
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self.logger = logging.getLogger()
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self.logger.setLevel(logging.INFO)
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formatter = logging.Formatter('%(asctime)s %(levelname)s: %(message)s', datefmt='%Z %Y:%m:%d %H:%M:%S')
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file_handler = RotatingFileHandler('./log/ups.log', maxBytes=1024*1024*10, backupCount=10)
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file_handler.setFormatter(formatter)
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consoleHandler = logging.StreamHandler()
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consoleHandler.setFormatter(formatter)
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self.logger.addHandler(file_handler)
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self.logger.addHandler(consoleHandler)
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2024-04-29 07:04:45 +00:00
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2024-07-13 16:22:47 +00:00
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def debug(self,message):
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self.logger.debug(message)
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def info(self,message):
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self.logger.info(message)
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def warn(self,message):
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self.logger.warning(message)
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def error(self,message):
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self.logger.error(message)
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def crit(self,message):
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self.logger.critical(message)
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killer = GracefulKiller()
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log = Logger()
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log.info('UPS service is starting')
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ups = UPS()
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2024-07-15 07:18:16 +00:00
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try:
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import pwmio
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import board
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asfdafsd
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log.info('gpio module import success')
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except:
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log.warn('gpio module import failed buzzer not working')
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log.warn('Create a dummy class')
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#Dummy class
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class Alarm:
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def __init__(self):
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pass
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def on(self):
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pass
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def off(self):
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pass
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else:
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try:
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class Alarm:
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def __init__(self):
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self.piezo = pwmio.PWMOut(board.D15, variable_frequency=True)
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self.piezo.duty_cycle = 0
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self.piezo.frequency = 523
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def on(self):
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self.piezo.duty_cycle = 50000
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def off(self):
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self.piezo.duty_cycle = 0
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except:
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log.crit('gpio pin assignment failure')
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log.warn('Create a dummy class')
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#Dummy class
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class Alarm:
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def __init__(self):
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pass
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def on(self):
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pass
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def off(self):
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pass
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2024-07-13 16:22:47 +00:00
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buz = Alarm()
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buz.on()
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log.info('UPS service started successfully')
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log.info(f"UPS Firmware Ver {ups.get_firmver()}")
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time.sleep(0.3)
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buz.off()
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while not killer.kill_now:
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ps = ups.get_chargestat()
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if ps == "full":
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log.info("AC power active")
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elif ps == "chg":
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log.info('AC power restored Charging')
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elif ps == "dch":
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2024-07-13 16:39:53 +00:00
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buz.on()
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2024-07-13 16:22:47 +00:00
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log.warn('AC power loss')
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pw = int(ups.get_curvol())
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if pw <= 3500:
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2024-07-13 16:48:24 +00:00
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log.crit('battery is too low Shut down system')
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2024-07-13 16:22:47 +00:00
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ups.shutdown()
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2024-04-29 07:04:45 +00:00
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os.system("shutdown now")
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2024-07-13 16:22:47 +00:00
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elif pw <= 3650:
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log.crit('battery is too low')
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2024-07-13 16:45:25 +00:00
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elif pw <= 3800:
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log.warn('battery is low')
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2024-07-13 16:22:47 +00:00
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elif ps == "err":
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log.crit('UPS hardware error detect')
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log.info("Current Voltage "+ups.get_curvol()+"mV")
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time.sleep(0.5)
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2024-07-13 16:39:53 +00:00
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buz.off()
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time.sleep(0.5)
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buz.off()
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2024-07-13 16:22:47 +00:00
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log.info('UPS service stopped successfully')
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