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RobotCode.py

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