Here’s something fun from [Chad Kapper] over on HackMakeMod: Escape Room Lockbox with the Cheap Yellow Display. You may have heard of the “cheap yellow display” (CYD), so-called due to the board’s ...

This project demonstrates Li-Fi (Light Fidelity) communication between two Arduino boards using visible light for data transmission. Text data is transmitted using an LED and a 4x4 keypad on the ...

Abstract: The lighting is the important phenomena that are used in our day to day life. They must be utilised in a proper way without any consequences. The rise in the demand is caused due to ...

Keypad phones, believe it or not, are still in use, and there is a surprising amount of variety to choose from. Some of the phones include 4G connectivity, cameras, and are built to last. If you're ...

Matrix keyboard module library. The matrix keyboard module is used for the matrix keyboard of emakefun, which can obtain the status of the matrix keyboard keys and the currently pressed key.