The ALL-IN-ONE TM1638 8-Digit LED Display, 16-Key Keyboard, 8Bit (3 Wire) Module is a multifunctional module that combines a 8-digit LED display, a 16-key keypad, and control logic in a single package. The module is based on the TM1638 IC and uses a 3-wire serial interface to communicate with a microcontroller or other host device. The LED display can be used to display numbers, letters, and other characters, while the keypad can be used to input data or control the device. The module is commonly used in DIY electronics projects and can be used in a wide range of applications, including digital clocks, calculators, and other display and input devices.

This awesome all-in-one User Interface module will allow you to quickly read user input and display output from your Arduino.

Bes of all is that you only need 3 wires to use this module!