# https://wokwi.com/projects/469730316438830081
# https://wokwi.com/projects/469724724687572993 
# https://docs.wokwi.com/parts/wokwi-led-matrix
# fehlerhaft: 
# https://wokwi.com/projects/469641338662642689
# wokwi version of Trinkets 
# Trinket plus Raspi equals love
# 
from machine import Pin
import time
time.sleep(0.1) # Wait for USB to become ready

print("Hello, Pi Pico!")

# ------------------------------
# GPIO-Belegung
# ------------------------------

button_pins = [11, 12, 13, 14, 15]
led_pins = [16, 17, 18, 19, 20]


# LEDs erzeugen
leds = [Pin(pin, Pin.OUT) for pin in led_pins]

# Status der LEDs
led_state = [0, 0, 0, 0, 0]

# Entprellung
last_press = [0, 0, 0, 0, 0]
DEBOUNCE_MS = 50

# ------------------------------
# Interrupt-Funktion
# ------------------------------

def make_callback(index):

    def callback(pin):

        now = time.ticks_ms()

        if time.ticks_diff(now, last_press[index]) > DEBOUNCE_MS:

            last_press[index] = now

            led_state[index] ^= 1
            leds[index].value(led_state[index])

            #print("Taster", index + 1,
            #      "LED =", led_state[index])

    return callback

# ------------------------------
# Taster konfigurieren
# ------------------------------

buttons = []

for i, pin in enumerate(button_pins):

    btn = Pin(pin, Pin.IN, Pin.PULL_UP)

    btn.irq(
        trigger=Pin.IRQ_FALLING,
        handler=make_callback(i)
    )

    buttons.append(btn)

#print("ESP32 gestartet")
#print("Warte auf Tastendruck...")

# ------------------------------
# Hauptschleife
# ------------------------------

while True:
    print("RPi läuft. ")
    time.sleep(1)