'''!
  @file demo_MAX17043.py
  @copyright   Copyright (c) 2010 DFRobot Co.Ltd (http://www.dfrobot.com)
  @license     The MIT License (MIT)
  @author [ouki.wang](ouki.wang@dfrobot.com)
  @version  V1.0
  @date  2018-4-14
  @url https://github.com/DFRobot/DFRobot_MAX17043
'''

import time
from machine import Pin
from DFRobot_MAX17043 import DFRobot_MAX17043

gauge = DFRobot_MAX17043()

def interruptCallBack(channel):
  gauge.clear_interrupt()
  print('Low power alert interrupt!')
  #put your battery low power alert interrupt service routine here

pin_irq = Pin(25, Pin.IN)
pin_irq.irq(trigger = Pin.IRQ_FALLING, handler = interruptCallBack)

rslt = gauge.begin()

while rslt != 0:
  print('gauge begin faild')
  time.sleep(2)
  rslt = gauge.begin()

#gauge.set_Interrupt(32) #use this to modify alert threshold as 1% - 32% (integer)
print('gauge begin successful')

while True:
  time.sleep(2)
  print('voltage: ' + str(gauge.read_voltage()) + 'mV')
  print('percentage: ' + str(round(gauge.read_percentage(), 2)) + '%')