The 16x2 Keypad LCD Shield is a convenient solution for Arduino enthusiasts who want to use an LCD without needing external switches. It features a 2x16 LCD display and 6 momentary push buttons. The shield interfaces with the LCD via pins 4, 5, 6, 7, 8, 9, and 10, while a single Analog Pin 0 is used to read the buttons. It supports contrast adjustment and backlight on/off functions, along with five analog pins for easy sensor connections.
This design allows easy sensor integration, perfect for monitoring or menu navigation with push buttons—ideal for applications like gaming or testing. It’s great for debugging when a computer isn’t available. The unused LCD pins are not exposed on the board, eliminating any potential conflicts with the LCD pins. This shield is perfect for standalone projects, providing real-time feedback without a computer.