HM-11 Bluetooth Module CC2541 Bluetooth 4.0 BLE

The HM-11 Bluetooth Module is a BLE (Bluetooth Low Energy) module in SMD (Surface Mount Device) form. It is powered by the TI CC2541 chip and is designed to be both energy-efficient and cost-effective, making it an ideal choice for your projects. The module comes with pre-installed firmware, enabling you to establish BLE communications through AT commands. It is compatible with BLE-enabled devices such as Android 4.3 and above, iPhone, and iPad.

Key Features:

• Bluetooth Protocol: Bluetooth Specification V4.0 BLE
• Operating Frequency: 2.4GHz ISM band
• Interface: Serial Port
• Range: Up to 30 meters in open space
• No Byte Limit: No restriction on the number of bytes for sending and receiving
• Modulation: GFSK (Gaussian Frequency Shift Keying)
• RF Power: DBM, 23-6 DBM, 0 DBM, 6 DBM, adjustable via AT commands
• TI CC2541 Chip: Offers 256 kB configuration space, AT command set, master and slave modes, serial port baud rate, name and password change features

Technical Specifications:

• Supply Voltage: DC 3.3V
• Communication Protocol: UART (TTL)
• Default Baud Rate: 115200
• Current Consumption (Transmission): 15mA
• Current Consumption (Reception): 8.5mA
• Deep Sleep Current: 600uA
• Operating Temperature: -40 ~ +65°C
• Dimensions: 13.5 x 18.5 x 2.3mm