HC-05 Bluetooth Wireless Transceiver Module (Without Adapter)

Bare HC-05 module providing Bluetooth 2.0 serial communication without voltage regulator or breakout board. For embedded integration into custom PCBs.

SPECIFICATIONS:

• Bluetooth Version: 2.0 + EDR

• Frequency: 2.4GHz ISM band

• Operating Voltage: 3.3V DC (no regulator)

• Logic Level: 3.3V (direct connection only)

• Default Baud Rate: 9600 (AT configurable)

• Interface: UART (TXD, RXD)

• Roles: Master/Slave configurable

• Range: ~10m

• LED: Onboard status LED

• Dimensions: ~27mm × 13mm

• Pins: VCC, GND, TXD, RXD, EN

FEATURES:

• Compact for embedded PCB designs

• AT command configuration

• No onboard regulator (requires 3.3V)

• Lightweight and low profile

TYPICAL APPLICATIONS:

• Bluetooth-enabled embedded systems

• Custom PCB integration

• Wireless sensor nodes

• Compact robotics projects

⚠️ NOTE: Requires 3.3V power supply. Not compatible with 5V directly.

PACKAGE INCLUDES:

• 1 x HC-05 Bare Module