ShillehTek HM-10 Bluetooth 4.0 BLE module with gold pins and large chip

HM-10 Bluetooth 4.0 BLE CC2541 Master/Slave Module for Arduino

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HM-10 Bluetooth 4.0 BLE CC2541 module provides low-energy BLE 4.0 connectivity and configurable Master/Slave operation, making it perfect for Arduino and IoT wireless projects.

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Overview

Product Overview

The HM-10 Bluetooth 4.0 BLE CC2541 Master Slave Module adds low-energy wireless connectivity to Arduino and IoT projects, providing a compact, power-efficient way to link microcontrollers with iOS and Android smartphones. Powered by the reliable CC2541 chip, the module uses Bluetooth Low Energy (BLE) 4.0 and can be set to Master and Slave modes so your device can initiate connections or wait for peers, useful for remote robots, wireless sensor networks, and smart home devices. Setup and tuning are handled via a simple serial interface using AT commands to adjust baud rate, password, and role, making integration straightforward for makers who need practical, low-power BLE communication without extra complexity.

Questions & answers

Frequently asked questions

The HM-10 is commonly used with Arduino and other microcontrollers that can communicate over a serial UART interface. It can also connect wirelessly to BLE-capable iOS and Android devices for app-based control or data exchange.
This breakout is intended for straightforward serial integration, with configuration handled through AT commands. You can adjust settings such as baud rate, password, and master or slave role before using it in a project.
The HM-10 communicates with a host microcontroller using a UART serial interface and provides Bluetooth Low Energy 4.0 wireless connectivity through the CC2541 chip. Check your controller’s logic-level requirements before wiring it into a circuit.
The HM-10 is useful for low-power wireless links between microcontrollers and phones. Common projects include remote robots, wireless sensor networks, smart home devices, and Arduino projects that need BLE communication with iOS or Android apps.
Use AT commands to confirm the module’s role, baud rate, and password if pairing or communication fails. Also verify that the other device supports Bluetooth Low Energy, because BLE is not the same as classic Bluetooth serial pairing.

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What's included

Features & Specs

Bluetooth Low Energy Provides BLE 4.0 connectivity for ultra-low power wireless communication.

CC2541 Chipset Built on the reliable TI CC2541 chip for stable data transmission.

Master and Slave Configurable as Master or Slave to initiate or accept Bluetooth connections.

Arduino Compatible Interfaces easily with Arduino boards for rapid prototyping and integration.

AT Command Setup Supports simple AT commands over serial for quick configuration of baud and role.

Smartphone Pairing Works with iOS and Android devices for direct smartphone communication.

Power Efficient Designed for low energy consumption ideal for battery-operated projects.

Reference

Documents

Full Product Manual ShillehTek HM-10 Bluetooth 4.0 BLE CC2541 Master Slave Module for Arduino | ShillehTek Product Manual In-depth setup guide with wiring, code examples, and troubleshooting.

Datasheet

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