how to interface Arduino with 7 segment display and 4x3 keypad matrix {Proteus simulation}
Arduino is a microcontroller that can be programmed to do all sorts of things. One of the extension of Arduino is to interface it with an LCD screen. In order to interface Arduino with a 7 segment display, you will need an Arduino compatible 7 segment display module and wires. In order to interface Arduino with a 4x3 keypad matrix, you will need an Arduino compatible 4x3 keypad matrix module, wires and a keypad.
The most common form of interface is a matrix. This matrix consists of an input pin and an output pin. The input pin has a row of seven outputs and the output pin has a column of three outputs. The matrix will have a total of 54 outputs. This is how the keypad matrix works.
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