Introduction: Password System
A password system that you can set a password to lock up things you need. However, I only made the password system, which means you have to find a project that did lock up things. So two of them can combine together.
Supplies
Source: http://www.circuitbasics.com/how-to-set-up-a-keypa...
Codes: https://create.arduino.cc/editor/LucianLu/93ba5aa1...
1. Arduino Leonardo
2. 4×4 Keypad
3. I2C LCD Display
4. Wires
5. Keypad Library
6. I2C LCD Library
7. Wire Library (Should be installed already)
8. Shoebox
Step 1: Buy All the Material
Step 2: Download All the Library
Keypad Library
Wire Library (Should be installed already)
12C LCD Library
Step 3: Attach 4×4 Keypad on Arduino Leonardo Board With Wires ( Make Sure You Insert in the Exact Same Spot)
Step 4: Attach LCD Display on Arduino Leonardo Board
Step 5: Copy the Codes
Step 6: Connect Your Computer With Arduino and Insert the Program
Step 7: Cut the Shoebox, So You Can Fit in LCD Display and 4×4 Keypad
Step 8: Insert LCD Display and Keypad on the Shoe Box. in Addition, Put the Arduino Leonardo Board Inside the Shoe Box
Step 9:
