from machine import Pin
from time import sleep_ms,sleep_us

coil=(Pin(8,Pin.OUT),Pin(9,Pin.OUT),Pin(17,Pin.OUT),Pin(19,Pin.OUT),Pin(16,Pin.OUT))
led=Pin(16,Pin.OUT)
out_coil=((1,0,0,0,0),(0,0,1,0,1),(0,0,0,1,0),(0,1,0,0,1),(1,1,1,1,1)) #1342 led at last out
cam = Pin(2, Pin.IN,Pin.PULL_UP) # enable internal pull-up resistor
tdc = Pin(3, Pin.IN,Pin.PULL_UP) # enable internal pull-up resistor
ign = Pin(13, Pin.IN,Pin.PULL_UP) # 
out_count=0
sync_achieve=0
ign_on=0
def coil_out(num):
    for i in range(5):
        coil[i].value(out_coil[num][i])

def coil_off():
    for i in range(5):
        coil[i].value(0)

def ign_detect_rising(ign):
    global out_count,ign_on
    if ign.value()==1 and ign_on==0:
        ign_on=1
        sleep_us(1700)
        coil_out(out_count)
        ign.irq(trigger=Pin.IRQ_FALLING , handler=ign_detect_falling)

def ign_detect_falling(ign):  
    global out_count,ign_on
    if ign.value()==0 and ign_on==1:        
        ign_on=0
        out_count+=1
        if out_count>3:
            out_count=0     
        sleep_us(1000)
        coil_off()  
        ign.irq(trigger=Pin.IRQ_RISING, handler=ign_detect_rising) 
               
def tdc_detect(tdc):
    global out_count,sync_achieve   
    if tdc.value()==1:
        sync_achieve=1        
        out_count=3# starting spark sequence
        tdc.irq(handler=None)
        sleep_ms(3)
        ign.irq(trigger=Pin.IRQ_RISING, handler=ign_detect_rising)        
  
tdc.irq(trigger=Pin.IRQ_RISING, handler=tdc_detect)
while sync_achieve==0:
    led.value(not led.value())
    sleep_ms(300)