Generic HM-10 BLE 4.0 Bluetooth Module | UART Interface | Low Energy Wireless Communication

The Engineering Behind HM-10 BLE 4.0 Module

The HM-10 BLE 4.0 Module is a robust solution for integrating Bluetooth Low Energy connectivity into microcontrollers and embedded systems. Based on the Texas Instruments CC2541 SoC, this module provides a complete transceiver solution, enabling transparent data transmission via a serial UART interface. Its architecture is optimized for low power consumption, making it ideal for battery-operated applications requiring intermittent or continuous wireless communication.

Designed with practicality in mind, the HM-10 module features a compact form factor and well-defined pinouts, facilitating easy prototyping and integration into custom PCBs. Its robust build quality ensures consistent performance in various operational environments, making it a staple for both hobbyist projects and industrial applications demanding reliable wireless data links.

Bluetooth Low Energy 4.0 Protocol

The HM-10’s adherence to the Bluetooth Low Energy (BLE) 4.0 standard ensures energy-efficient communication, critical for extending battery life in portable and IoT devices. This protocol enables fast connection times and secure data transfer, supporting both master and slave modes, which allows for flexible network topologies where the module can either initiate connections or act as a peripheral device.

UART Serial Interface

The primary control and data exchange mechanism is a standard Universal Asynchronous Receiver-Transmitter (UART) interface. This straightforward serial communication method resolves traditional pain points associated with complex wireless stack implementations by abstracting the BLE protocol into simple AT commands, allowing seamless integration with any microcontroller capable of serial communication without extensive software overhead.

Optimized for Performance & Integration

• Core Chipset: Texas Instruments CC2541
• Bluetooth Standard: BLE 4.0 (Bluetooth Low Energy)
• Operating Voltage: 2V to 3.6V (Typically 3.3V)
• Communication Interface: UART (Serial)
• Operating Modes: Master/Slave selectable
• AT Command Support: Yes, for configuration
• Transmission Distance: Up to 60 meters (open space)
• Low Power Consumption: Ideal for battery applications

Features & Benefits

• BLE 4.0 Protocol: Ensures low power consumption and robust wireless communication for extended battery life.
• TI CC2541 Chipset: Provides a reliable, proven core for stable and efficient Bluetooth Low Energy operations.
• UART Interface: Simplifies integration with microcontrollers through standard serial communication and AT commands.
• Master/Slave Support: Offers flexible network topologies, allowing the module to adapt to various application needs.
• Compact Form Factor: Enables easy embedding into space-constrained projects and custom PCB designs.
• Wide Voltage Range (2-3.6V): Compatible with various power sources, enhancing adaptability across different systems.