314 lines
9.4 KiB
Python
314 lines
9.4 KiB
Python
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import RPi.GPIO as GPIO
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import time
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import I2C_LCD_driver
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from mfrc522 import SimpleMFRC522 # Assuming you're using the MFRC522 RFID module
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# GPIO Pin assignments for Rows (L) and Columns (C) for the Keypad
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L1 = 4
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L2 = 17
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L3 = 27
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L4 = 22
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C1 = 13
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C2 = 19
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C3 = 26
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C4 = 21
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# GPIO Pin for controlling the lock (e.g., connected to a relay or transistor)
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LOCK_PIN = 18 # Adjust to the pin controlling the lock
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# RFID Lock Control
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reader = SimpleMFRC522()
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# Set up the GPIO pins
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GPIO.setmode(GPIO.BCM)
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# Set up lock pin as output (for controlling lock)
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GPIO.setup(LOCK_PIN, GPIO.OUT)
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GPIO.output(LOCK_PIN, GPIO.LOW) # Lock is initially closed
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# Set rows as outputs, columns as inputs with pull-down resistors for the keypad
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GPIO.setup(L1, GPIO.OUT)
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GPIO.setup(L2, GPIO.OUT)
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GPIO.setup(L3, GPIO.OUT)
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GPIO.setup(L4, GPIO.OUT)
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GPIO.setup(C1, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
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GPIO.setup(C2, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
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GPIO.setup(C3, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
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GPIO.setup(C4, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
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# Initialize the LCD display using the I2C LCD driver
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mylcd = I2C_LCD_driver.lcd()
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# Character map for the keypad (this is a typical 4x4 matrix)
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keypad = [
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['1', '2', '3', 'A'],
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['4', '5', '6', 'B'],
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['7', '8', '9', 'C'],
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['*', '0', '#', 'D']
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]
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# Predefined correct password
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correct_password = "1234" # Change this to your desired password
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# Store entered password
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entered_password = ""
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# Function to scan a row and determine which key was pressed
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def readLine(row, characters):
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GPIO.output(row, GPIO.HIGH) # Set the row pin HIGH to check columns
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if GPIO.input(C1) == 1:
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return characters[0]
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elif GPIO.input(C2) == 1:
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return characters[1]
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elif GPIO.input(C3) == 1:
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return characters[2]
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elif GPIO.input(C4) == 1:
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return characters[3]
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return None
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# Function to scan the entire keypad (rows and columns)
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def scanKeypad():
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for row, characters in zip([L1, L2, L3, L4], keypad):
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key = readLine(row, characters)
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if key is not None:
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return key
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return None
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# Function to unlock the lock
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def unlock_lock():
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GPIO.output(LOCK_PIN, GPIO.HIGH) # Unlock the lock (active high or low depending on your setup)
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mylcd.lcd_clear()
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mylcd.lcd_display_string("Lock Unlocked!", 1)
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time.sleep(5) # Keep the lock open for 5 seconds
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GPIO.output(LOCK_PIN, GPIO.LOW) # Lock the lock again
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# Function to handle RFID unlocking
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def unlock_lock_rfid():
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mylcd.lcd_clear()
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mylcd.lcd_display_string("Place RFID tag", 1)
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id, text = reader.read()
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mylcd.lcd_clear()
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mylcd.lcd_display_string(f"ID: {id}", 1)
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# Assuming a predefined ID for unlocking, e.g., ID 123456789
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if id == 123456789: # Replace this with your RFID ID
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unlock_lock()
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else:
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mylcd.lcd_display_string("Access Denied", 1)
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time.sleep(2)
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# Main loop for the keypad password entry
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def main_loop():
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global entered_password
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while True:
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key = scanKeypad()
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if key:
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if key == "#": # Submit password when "#" is pressed
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if entered_password == correct_password:
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unlock_lock()
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else:
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mylcd.lcd_clear()
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mylcd.lcd_display_string("Wrong Password!", 1)
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time.sleep(2)
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entered_password = "" # Reset entered password after submission
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elif key == "*": # Clear the entered password when "*" is pressed
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entered_password = ""
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mylcd.lcd_clear()
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mylcd.lcd_display_string("Password Cleared", 1)
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time.sleep(2)
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else:
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entered_password += key # Append the pressed key to the entered password
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mylcd.lcd_clear()
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mylcd.lcd_display_string("Enter Password:", 1)
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mylcd.lcd_display_string(entered_password, 2)
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time.sleep(0.2) # Small delay for debouncing
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# Main execution starts here
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try:
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while True:
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# Try scanning RFID for unlocking
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unlock_lock_rfid() # RFID Unlocking attempt
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# Call the main loop to handle keypad password entry
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main_loop()
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except KeyboardInterrupt:
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print("Program terminated by user.")
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finally:
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GPIO.cleanup() # Clean up GPIO to reset pins
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New Version:
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from gpiozero import Button
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import I2C_LCD_driver
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import RPi.GPIO as GPIO
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import time
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from mfrc522 import SimpleMFRC522 # Assuming you're using the MFRC522 RFID module
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L1 = 4
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L2 = 17
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L3 = 27
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L4 = 22
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C1 = 13
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C2 = 19
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C3 = 26
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C4 = 21
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Lock1 = 20
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GPIO.setmode(GPIO.BCM)
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GPIO.setup(L1, GPIO.OUT)
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GPIO.setup(L2, GPIO.OUT)
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GPIO.setup(L3, GPIO.OUT)
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GPIO.setup(L4, GPIO.OUT)
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GPIO.setup(C1, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
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GPIO.setup(C2, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
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GPIO.setup(C3, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
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GPIO.setup(C4, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
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mylcd = I2C_LCD_driver.lcd()
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def readLine(line, characters):
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GPIO.output(line, GPIO.HIGH)
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if(GPIO.input(C1) == 1):
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return characters[0]
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if(GPIO.input(C2) == 1):
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return characters[1]
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if(GPIO.input(C3) == 1):
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return characters[2]
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if(GPIO.input(C4) == 1):
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return characters[3]
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while True: # This is the loop that will repeat
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# Your loop code should go here
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# Don't put import statements inside this loop.
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pass
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import RPi.GPIO as GPIO
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import time
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import I2C_LCD_driver
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from mfrc522 import SimpleMFRC522 # Assuming you're using the MFRC522 RFID module
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# GPIO Pin for controlling the lock (e.g., connected to a relay or transistor)
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LOCK_PIN = 18 # Adjust to the pin controlling the lock
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# RFID Lock Control
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reader = SimpleMFRC522()
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# Set up the GPIO pins
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GPIO.setmode(GPIO.BCM)
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# Set up lock pin as output (for controlling lock)
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GPIO.setup(LOCK_PIN, GPIO.OUT)
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GPIO.output(LOCK_PIN, GPIO.LOW) # Lock is initially closed
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# Set rows as outputs, columns as inputs with pull-down resistors for the keypad
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GPIO.setup(L1, GPIO.OUT)
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GPIO.setup(L2, GPIO.OUT)
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GPIO.setup(L3, GPIO.OUT)
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GPIO.setup(L4, GPIO.OUT)
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GPIO.setup(C1, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
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GPIO.setup(C2, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
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GPIO.setup(C3, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
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GPIO.setup(C4, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
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# Initialize the LCD display using the I2C LCD driver
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mylcd = I2C_LCD_driver.lcd()
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# Character map for the keypad (this is a typical 4x4 matrix)
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keypad = [
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['1', '2', '3', 'A'],
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['4', '5', '6', 'B'],
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['7', '8', '9', 'C'],
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['*', '0', '#', 'D']
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]
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# Predefined correct password
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correct_password = "1234" # Change this to your desired password
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# Store entered password
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entered_password = ""
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# Function to scan a row and determine which key was pressed
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def readLine(row, characters):
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GPIO.output(row, GPIO.HIGH) # Set the row pin HIGH to check columns
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if GPIO.input(C1) == 1:
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return characters[0]
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elif GPIO.input(C2) == 1:
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return characters[1]
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elif GPIO.input(C3) == 1:
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return characters[2]
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elif GPIO.input(C4) == 1:
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return characters[3]
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return None
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# Function to scan the entire keypad (rows and columns)
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def scanKeypad():
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for row, characters in zip([L1, L2, L3, L4], keypad):
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key = readLine(row, characters)
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if key is not None:
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return key
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return None
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# Function to unlock the lock
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def unlock_lock():
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GPIO.output(LOCK_PIN, GPIO.HIGH) # Unlock the lock (active high or low depending on your setup)
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mylcd.lcd_clear()
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mylcd.lcd_display_string("Lock Unlocked!", 1)
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time.sleep(5) # Keep the lock open for 5 seconds
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GPIO.output(LOCK_PIN, GPIO.LOW) # Lock the lock again
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# Function to handle RFID unlocking
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def unlock_lock_rfid():
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mylcd.lcd_clear()
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mylcd.lcd_display_string("Place RFID tag", 1)
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id, text = reader.read()
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mylcd.lcd_clear()
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mylcd.lcd_display_string(f"ID: {id}", 1)
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# Assuming a predefined ID for unlocking, e.g., ID 123456789
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if id == 123456789: # Replace this with your RFID ID
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unlock_lock()
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else:
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mylcd.lcd_display_string("Access Denied", 1)
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time.sleep(2)
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# Main loop for the keypad password entry
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def main_loop():
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global entered_password
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while True:
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key = scanKeypad()
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if key:
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if key == "#": # Submit password when "#" is pressed
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if entered_password == correct_password:
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unlock_lock()
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else:
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mylcd.lcd_clear()
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mylcd.lcd_display_string("Wrong Password!", 1)
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time.sleep(2)
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entered_password = "" # Reset entered password after submission
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elif key == "*": # Clear the entered password when "*" is pressed
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entered_password = ""
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mylcd.lcd_clear()
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mylcd.lcd_display_string("Password Cleared", 1)
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time.sleep(2)
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else:
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entered_password += key # Append the pressed key to the entered password
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mylcd.lcd_clear()
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mylcd.lcd_display_string("Enter Password:", 1)
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mylcd.lcd_display_string(entered_password, 2)
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time.sleep(0.2) # Small delay for debouncing
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# Main execution starts here
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try:
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while True:
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# Try scanning RFID for unlocking
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unlock_lock_rfid() # RFID Unlocking attempt
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# Call the main loop to handle keypad password entry
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main_loop()
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except KeyboardInterrupt:
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print("Program terminated by user.")
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finally:
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GPIO.cleanup() # Clean up GPIO to reset pins
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