Product details
A 4×4 matrix 16-key button keypad is a type of input device that consists of a grid of 16 buttons or keys arranged in a 4×4 matrix. It is commonly used as a compact and convenient way to input data or control a device.
To use a 4×4 matrix keypad, each button or key is assigned a unique combination of row and column coordinates. When a button is pressed, it closes a circuit between the corresponding row and column wires, allowing the keypad to determine which button was pressed. The keypad can then send this information to a microcontroller or other device for processing.
4×4 matrix keypads are often used in applications where a larger number of buttons or keys are needed, but space is limited. They are commonly found in devices such as alarm systems, security access panels, and handheld electronic devices.
This 4×4 matrix of tactile switches are perfect for adding a user-interface to your system at the lowest possible cost. Perfect for Arduino projects.
There are 16 buttons in total and has 8 pins in total for usage.
