import time 
import board 
import digitalio 
 
# -------------------------- 
# Keypad setup (4x4) 
# -------------------------- 
rows = [board.GP13, board.GP12, board.GP11, board.GP10] 
cols = [board.GP9, board.GP8, board.GP7, board.GP6] 
 
row_pins = [] 
col_pins = [] 
 
for r in rows: 
    pin = digitalio.DigitalInOut(r) 
    pin.direction = digitalio.Direction.OUTPUT 
    pin.value = True 
    row_pins.append(pin) 
 
for c in cols: 
    pin = digitalio.DigitalInOut(c) 
    pin.direction = digitalio.Direction.INPUT 
    pin.pull = digitalio.Pull.UP 
    col_pins.append(pin) 
 
# Key map 
keys = [ 
    ['1','2','3','A'], 
    ['4','5','6','B'], 
    ['7','8','9','C'], 
    ['*','0','#','D'] 
] 
 
# -------------------------- 
# Segment patterns (a,b,c,d,e,f,g) 
# -------------------------- 
segments = { 
    '0':[1,1,1,1,1,1,0], 
    '1':[0,1,1,0,0,0,0], 
    '2':[1,1,0,1,1,0,1], 
    '3':[1,1,1,1,0,0,1], 
    '4':[0,1,1,0,0,1,1], 
    '5':[1,0,1,1,0,1,1], 
    '6':[1,0,1,1,1,1,1], 
    '7':[1,1,1,0,0,0,0], 
    '8':[1,1,1,1,1,1,1], 
    '9':[1,1,1,1,0,1,1], 
 
    'A':[1,1,1,0,1,1,1], 
    'b':[0,0,1,1,1,1,1], 
    'c':[0,0,0,1,1,0,1], 
    '-':[0,0,0,0,0,0,1], 
    'H':[0,1,1,0,1,1,1], 
 
    ' ':[0,0,0,0,0,0,0] 
} 
 
# -------------------------- 
# 7-segment pins 
# -------------------------- 
seg_pins = [ 
    board.GP16, 
    board.GP17, 
    board.GP18, 
    board.GP19, 
    board.GP20, 
    board.GP21, 
    board.GP22 
] 
 
seg_outputs = [] 
for p in seg_pins: 
    pin = digitalio.DigitalInOut(p) 
    pin.direction = digitalio.Direction.OUTPUT 
    seg_outputs.append(pin) 
 
# -------------------------- 
# Display function 
# -------------------------- 
def display(char): 
    pattern = segments.get(char, segments[' ']) 
    for i in range(7): 
        seg_outputs[i].value = pattern[i] 
 
# -------------------------- 
# Keypad scan function 
# -------------------------- 
def scan_keypad(): 
    for i, row in enumerate(row_pins): 
        row.value = False 
        for j, col in enumerate(col_pins): 
            if not col.value: 
                row.value = True 
                return keys[i][j] 
        row.value = True 
    return None 
 
# -------------------------- 
# Main loop 
# -------------------------- 
last_key = None 
 
while True: 
    key = scan_keypad() 
 
    if key and key != last_key: 
        print("Key:", key) 
 
        if key.isdigit(): 
            display(key) 
 
        elif key == 'A': 
            display('A') 
 
        elif key == 'B': 
            display('b') 
 
        elif key == 'C': 
            display('c') #jadi c kecik 
 
        elif key == '*': 
            display('-') 
 
        elif key == '#': 
            display('H') #jadi H besar 
 
        last_key = key

        if not key: 
            last_key = None 
            
        time.sleep(0.05)