# Project objective: Light up an external LED when a push button is pressed
#
# Hardware and connections used:
#   Push button to GPIO Pin 16
#   10000 ohm pull-down resistor for the push button
#   LED to GPIO Pin 15
#   220 ohm resistor for LED
# 
# Programmer: Adrian Josele G. Quional
# modules
from machine import Pin
from time import sleep

LED = Pin(15, Pin.OUT)      # creating LED object, setting it as OUT
BUTTON = Pin(16, Pin.IN)    # creating Push Button object, setting it as IN

# continuously read the signal from the push button while the board has power
while True:
    # if the signal from the button is HIGH (button is pressed), turn LED on
    if BUTTON.value() == 1:
        LED.on()
        sleep(0.1)

    # otherwise, turn the LED off
    else:
        LED.off()