HC-05 Bluetooth Module for Arduino

HC-05 Bluetooth Wireless Communication Module for Arduino

Description

HC-05 is a Bluetooth module which is designed for wireless communication. This module can be used in a master or slave configuration. It is used for many applications like wireless headset, game controllers, wireless mouse, wireless keyboard and many more consumer applications.

Pin Configuration

• 1. Enable / Key: This pin is used to toggle between Data Mode (set low) and AT command mode (set high). By default it is in Data mode
• 2. Vcc: Powers the module. Connect to +5V Supply voltage
• 3. Ground: Ground pin of module, connect to system ground
• 4. TX – Transmitter: Transmits Serial Data. Everything received via Bluetooth will be given out by this pin as serial data
• 5. RX – Receiver: Receive Serial Data. Every serial data given to this pin will be broadcasted via Bluetooth
• 6. State: The state pin is connected to on board LED, it can be used as a feedback to check if Bluetooth is working properly
• 7. LED: Indicates the status of Module. Blink once in 2 sec: Module has entered Command Mode. Repeated Blinking: Waiting for connection in Data Mode. Blink twice in 1 sec: Connection successful in Data Mode
• 8. Button: Used to control the Key/Enable pin to toggle between Data and command Mode

Typical -80dBm sensitivity. Up to +4dBm RF transmit power. Low Power 1.8V Operation, 1.8 to 3.6V I/OPIO control. UART interface with programmable baud rate. With integrated antenna. With edge connector