Hex Keypad

Aim:

To interface 4x4 Hex Keypad with ESP32-Microcontroller module.

Description:

To display the pressed key on the serial monitor.

Hardware Required:

ESP32-Microcontroller Development board and FRC Cable

Procedure:

1. Connect P2 port and SV5(4*4 Key Matrix) port using FRC cable as shown above.

2. Connect the USB cable to the board.

3. Open Arduino IDE .Select DOIT ESP32 DEVKIT V1 in boards and select COM port.

4. Now Write the program, verify and Upload it.

5. After uploading is done open serial monitor to observe the output.

6. On your serial monitor, the number appears for each switch pressed.