Misc.
4x4 Keypad Module
4X4 KEYPAD Pin Configuration
4X4 KEYPAD MODULES are available in different sizes and shapes. But they all have same pin configuration. It is easy to make 4X4 KEYPAD by arranging 16 buttons in matrix formation by yourself.
Electret Condenser Microphone
Pin Identification and Configuration
No:
Pin Name
Identification
Description
Active Passive Buzzer
Buzzer Pin Configuration
Pin Number
Pin Name
Description