4×4 Matrix Keypad Membrane Switch Arduino, Arm and Other MCU (Pack of 1) AB0100

Applications:

• Wireless Communication: Used for wireless communication in embedded systems, IoT devices, home automation, etc.
• Arduino Projects: Commonly used in Arduino projects to enable wireless communication between an Arduino board and a mobile phone or other Bluetooth-enabled devices.
• Remote Control: Ideal for creating wireless remote control systems, such as controlling robots or smart devices.
• Data Transfer: Can be used for transferring data between devices, such as sensor data from one device to another.

Pin Configuration:

• VCC: Power supply (3.3V to 5V).
• GND: Ground connection.
• TXD (Transmit): Serial data output.
• RXD (Receive): Serial data input.
• STATE: Indicates the Bluetooth connection status.
• EN: Enable pin (used to set the module into AT command mode).

Package Includes:

• 1 x HC-05 Bluetooth module.