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

print("Hello, Pi Pico!")


from machine import Pin,PWM

ROW_PINS = [0, 1, 2, 3]  
COL_PINS = [16,17,18,19]  

row_pins = [Pin(pin, Pin.OUT) for pin in ROW_PINS]
col_pins = [Pin(pin, Pin.IN, Pin.PULL_DOWN) for pin in COL_PINS]
led = [Pin(28,Pin.OUT),Pin(27,Pin.OUT),Pin(22,Pin.OUT),Pin(21,Pin.OUT),Pin(14,Pin.OUT)]
print(f'row pin {row_pins}')
print(f'col pin {col_pins}')

keypad = [
    ['O', 'N', 'E', 'T'],
    ['W', 'H', 'R', 'F'],
    ['U', 'I', 'V', 'C'],
    ['*', '0', '#', 'D']
]

numbers=['ONE','TWO','THREE','FOUR','FIVE']

def scan_keypad():
    for i in range(len(ROW_PINS)):
        row_pins[i].value(1)  
        for j in range(len(COL_PINS)):
            if col_pins[j].value() == 1:  
                return keypad[i][j]  
        row_pins[i].value(0)  
    return None 

entered_password = ''
while True:
    key = scan_keypad()
    if key:
        if key == '#':
            print(entered_password)
            for i in range(5):
                if(entered_password==numbers[i]):
                    led[i].on()
                    time.sleep(2)
                    led[i].off()
            entered_password=""
        else:
            entered_password += key
    time.sleep(0.1)