import time
time.sleep(0.1) # Wait for USB to become ready

from machine import Pin

LED = Pin(16, Pin.OUT)
LED.value(1)      # output HIGH
state = LED.value() # read state
print("state is:",state)

a = 0
print("loop start")
while a < 5:
    print("value a:",a)
    a = a + 1
    b=0
print("loop end")

print("loop start")
for a in range(5):
    print("value a:",a)
print("loop end")

from machine import Pin
import utime
LED = Pin(16, Pin.OUT)
for i in range(10):
    LED.value(1)
    utime.sleep(1)
    LED.value(0)
    utime.sleep(1)