import tm1637
from machine import Pin,Timer
import time
tm = tm1637.TM1637(clk=Pin(4), dio=Pin(5))
start=0
start_time=0
lap_time=0
last_lap_time=0
best_lap_time=0
total_time=0
update=0
pin1 = Pin(28,Pin.IN,Pin.PULL_UP)   # sensor detect motion
pin2 = Pin(26,Pin.IN,Pin.PULL_UP)   # stop button
def callback1(pin1):
    global update,start
    start=1
    update=1

def callback2(pin2):
    global update,start
    start=0
    update=0
    
def display(delta):    
    minit=int(delta/1000/60)
    sec=int(delta/1000%60)
    mili=int(delta%1000/10)
    if(minit==0):
        tm.numbers(sec, mili)
    else:
        tm.numbers(minit,sec)
    

tm.scroll('timing system by miji')
tm.show('----')
pin1.irq(trigger=Pin.IRQ_FALLING, handler=callback1)
pin2.irq(trigger=Pin.IRQ_FALLING, handler=callback2)
#tim = Timer(period=50, mode=Timer.PERIODIC, callback=display)
while 1:
    if start==1:
        update=0
        start_time= time.ticks_ms() 
        while start==1:            
            if update==1:
                lap_time = time.ticks_diff(time.ticks_ms(), start_time)
                start_time= time.ticks_ms()               
                display(lap_time)
                time.sleep(2)
                update=0
            else:
                delta = time.ticks_diff(time.ticks_ms(), start_time) # compute time difference
                display(delta)
                time.sleep(0.02)
    tm.show('----')