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MH-M18 Industrial Bluetooth 4.0 BLE Module | UART Interface | Long Range
The MH-M18 is a high-performance, industrial-grade Bluetooth 4.0 Low Energy (BLE) module designed for robust and long-range wireless data transmission. It features a powerful Texas Instruments CC2541 chipset and an external antenna option to achieve communication distances of up to 100 meters. With its UART interface and support for the AT command set, the MH-M18 simplifies the process of adding reliable BLE connectivity to industrial equipment, IoT sensors, and data acquisition systems.
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Product Description :
The MH-M18 Bluetooth module is built for demanding applications where reliability and range are critical. It operates on the Bluetooth 4.0 BLE protocol, providing an optimal balance between data throughput and low power consumption. The module is designed to function as a transparent wireless serial bridge, seamlessly transferring data between a host device's UART port and a BLE master, such as a smartphone, tablet, or gateway.
Its industrial credentials are reinforced by a wide operating voltage range of 3.3V to 6V, an extensive operating temperature range of -40°C to +85°C, and high immunity to electrostatic discharge (ESD). The MH-M18 is pre-programmed with a robust firmware that allows for easy configuration of all key parameters, making it an ideal "set-and-forget" solution for permanent installations in harsh environments.
Key Features :
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Industrial Long Range: Capable of up to 100 meters line-of-sight range with an external antenna.
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Bluetooth 4.0 BLE: Supports low-energy applications for improved power efficiency.
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Industrial-Grade Robustness: Wide operating voltage (3.3V-6V) and temperature range (-40°C to +85°C).
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Simple UART Integration: Functions as a transparent serial port, easy to interface with any microcontroller.
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Flexible Antenna Options: Available in versions with a built-in PCB antenna or an external IPEX connector.
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Comprehensive AT Command Set: Allows for easy configuration of device name, baud rate, role, and other parameters.
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High ESD Protection: 15KV Air-gap Discharge and 8KV Contact Discharge for enhanced durability.
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Low Power Consumption: Supports sleep modes with a current draw as low as 400nA, ideal for battery-powered devices.
Applications :
The MH-M18 is engineered for a wide range of industrial and commercial applications, including:
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Industrial Wireless Sensor Networks and Data Acquisition
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IoT (Internet of Things) Gateways and Edge Devices
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Wireless PLC and HMI Programming Cables
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Medical and Healthcare Monitoring Equipment
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Smart Home and Building Automation Systems
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Asset Tracking and Remote Condition Monitoring
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Long-Range Remote Control Systems
Technical Specifications :
Category Specification Bluetooth Version V4.0 BLE (Single Mode) Chipset Texas Instruments CC2541 Frequency Band 2.4 GHz ISM Band Interface UART (3.3V TTL Logic Level) Supply Voltage 3.3V - 6.0 VDC Operating Temperature -40°C to +85°C RF Power Output +4 dBm (Max) Sensitivity -93 dBm (BLE) Range Up to 100 meters (with external antenna) Antenna Options PCB Antenna or IPEX Connector for External Antenna Dimensions 26.9mm x 14.9mm x 2.2mm ESD Protection Contact Discharge: ±8KV; Air-gap Discharge: ±15KV Configurability AT Commands via UART
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