HM-10 BLE Bluetooth 4.0 CC2541 Wireless Module

The HM-10 BLE Module is a versatile Bluetooth 4.0 (BLE) wireless communication module based on the Texas Instruments CC2541 chip. It supports both master and slave modes and provides a transparent serial data transmission link that can replace traditional wired serial communication. Configurable via AT commands, it allows users to set baud rate, device name, password, and other parameters flexibly. Ideal for remote control, data acquisition, and wireless serial communication applications without the need for a separate MCU for bridging.

Pin Description

Features

• Fully encapsulated, easy to use

• Configurable as Master or Slave mode

• UART interface with configurable baud rate via AT commands

• Communication range up to 60 meters (open space)

• Built-in PCB antenna for reliable wireless signal

• Supports simultaneous direct bridge mode (no extra MCU needed)

• Fast connection interval (20 ms default) for quick pairing

• Supports AT commands for baud rate, MAC address, module name, connection intervals, and power control

• Supports 2-channel 14-bit ADC inputs and 4-channel PWM output (120Hz)

• RSSI monitoring with automatic read and notification for anti-lost applications

• Power indicator and alert functionality

• Anti-hijack password setup and security features

• Ultra-low power consumption with standby mode

Applications

• Wireless serial data transmission

• Remote control and automation

• Wireless sensor data acquisition

• Anti-lost alarms and proximity detection

• IoT and smart device connectivity

• Transparent serial port replacement in embedded projects

Package Includes

• 1 x HM-10 BLE Bluetooth 4.0 CC2541 Wireless Module