#. Blinken ohne sleep()
print("START")
import machine, time

# LED ist H-aktiv  
led1 = machine.Pin(2, machine.Pin.OUT)
led1.value(1)
 # LED ist L-aktiv
led2 = machine.Pin(14, machine.Pin.OUT)
led2.value(0)
time.sleep(3)

dt1_an = 5*1000*1000         # 5 ms
dt1_aus = 1*1000*1000         # 1 ms Sekunden
led1_status = True
t1_last = time.time_ns()
print("T1 = ", (dt1_an+dt1_aus)/10e9,"s   f1 = ", 10e9/(dt1_an+dt1_aus))
dt2_an = 900*10e6; dt2_aus = 500*10e6; led2_status = False; 
t2_last = t1_last
print("T2 = ", (dt2_an+dt2_aus)/10e9,"s   f2 = ", 10e9/(dt2_an+dt2_aus))

n=0
while True:
    #n += 1
    t = time.time_ns()
    if led1_status:
        if t >= t1_last + dt1_an:
            led1.value(0)
            t1_last = t
            led1_status = False
            #print(n) 
            #n = 0
    else:
        if t >= t1_last + dt1_aus:
            led1.value(1)
            t1_last = t
            led1_status = True
    if led2_status:
        if t >= t2_last + dt2_an:
            led2.value(0)
            t2_last = t
            led2_status = False
    else:
        if t >= t2_last + dt2_aus:
            led2.value(1)
            t2_last = t
            led2_status = True