GBR

gbr.py

import RPi.GPIO as GPIO
import time
import requests
 
# -------------- Config --------------

pin_button = 21
pin_led = 20

time_previous_blink = time.time()
blinking_state = False # True for LED on, False for LED off
blink_on = 0.3   # duration of the LED being on while blinking (in sec)
blink_off = 0.5  # duration of the LED being off while blinking (in sec)

cooldown = 5 # Cooldown of doing nothing after button is pressed and requests sent to server (in sec)

# url = "https://postb.in/VQ8OjDyK"
url = "https://short-edition.com/"

# -------------- Functions --------------

def setup():
    GPIO.setmode(GPIO.BCM)
    GPIO.setup(pin_button, GPIO.IN, pull_up_down=GPIO.PUD_UP)
    GPIO.setup(pin_led, GPIO.OUT)


def led_on():
    global time_previous_blink, blinking_state
    print("on")
    GPIO.output(pin_led, True)
    blinking_state = True
    time_previous_blink = time.time()

def led_off():
    global time_previous_blink, blinking_state
    print("off")
    GPIO.output(pin_led, False)
    blinking_state = False
    time_previous_blink = time.time()

def main_loop():
    button_state = GPIO.input(pin_button)

    # The sate goes to False when the button is pressed
    if button_state == False:
        on_button_pressed()
        return

    # If LED is on and it's time to switch off
    if blinking_state and time_previous_blink + blink_on < time.time():
        led_off()

    # If LED is off and it's time to switch on
    elif not blinking_state and time_previous_blink + blink_off < time.time():
        led_on()

def on_button_pressed():
    print("Button pressed")
    led_on()
    t = time.time()
    r = requests.get(url)
    print("Status code {} in {:.0f} ms".format(r.status_code, 1000 * (time.time() - t)))
    time.sleep(cooldown)


# -------------- Main --------------

setup()
while True:
    main_loop()
    time.sleep(0.05)