
The BLE 5.3 master-slave integrated Bluetooth module HLK-B26 has a transmission distance of up to 50 meters and a low power consumption of only 53.48μA, used for true Bluetooth-serial transparent transmission. After the B26 incorporates mesh networking technology, what kind of application direction does it expand for the product?
Product Introduction
HLK-B26 Bluetooth Module
The HLK-B26, an ultra-small Bluetooth module, is not only priced at a low 3.3 yuan but also offers excellent performance, making it an absolute value for money.
The module supports master-slave integrated BLE 5.3 Bluetooth, functioning as both a master and a slave; it supports Bluetooth Mesh networking, using the nRF Mesh APP for network configuration and communication; it defaults to supporting 200 nodes, breaking the traditional one-to-one or one-to-many communication limitations of Bluetooth, achieving many-to-many communication, thus enhancing communication flexibility and efficiency.

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Master frequency of 96MHz, 32bit
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Serial port baud rate can reach up to 921600, supporting fast and stable Bluetooth-serial transparent transmission
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Working mode is master-slave integrated, can be set to master mode or slave mode
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Bluetooth version based on BLE 5.3, faster transmission speed, longer distance (up to 50 meters in open environments)
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Broadcast data supports customizable broadcast data
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Low power mode sleep current as low as 53.48μA, supports customizable connection and broadcast intervals
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Adjustable transmission power, up to 8dBm
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Receiving sensitivity up to -92dBm
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OTA upgrade supports Bluetooth wireless firmware upgrade for the module, wireless configuration of module parameters
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Default onboard antenna, stable signal and low cost
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Built-in watchdog ensures reliability for long-term operation
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Wide working voltage range from 1.8V to 4.2V, typical value 3.0V
Application Scenarios
HLK-B26 Bluetooth Module
Industrial IoT

Factory equipment monitoring: Connect sensors, PLCs (Programmable Logic Controllers), and other devices through B26 Mesh networking to achieve real-time monitoring of equipment status and data collection.
Warehouse management: Deploy multiple Bluetooth tags and sensors in the warehouse to achieve goods positioning and environmental monitoring through B26 Mesh networking.
Remote control: Industrial equipment achieves remote control and fault diagnosis through B26 Mesh networking.
Health Monitoring and Medical Devices

Hospital equipment networking: Medical devices (such as heart rate monitors, blood pressure monitors, infusion pumps, etc.) achieve data sharing and remote monitoring through B26 Mesh networking.
Health monitoring in nursing homes: Health monitoring devices worn by the elderly achieve real-time data collection and anomaly alerts through B26 Mesh networking.
Home health management: Multiple health monitoring devices (such as blood glucose meters, weighing scales, etc.) achieve data synchronization and analysis through B26 Mesh networking.
Smart Buildings and Building Automation

Building lighting control: Achieve centralized control and energy management of the lighting system within buildings through B26 Mesh networking.
Environmental monitoring: Deploy temperature and humidity sensors, air quality sensors, etc., to achieve real-time monitoring and adjustment of the building environment through B26 Mesh networking.
Security systems: Access control systems, cameras, smoke detectors, etc., achieve linkage through B26 Mesh networking.
Education and Office

Smart classrooms: Achieve centralized control and management of classroom devices through B26 Mesh networking.
Office device networking: Printers, projectors, and other office devices achieve interconnection and remote control through B26 Mesh networking.
Conference systems: Conference room devices (such as sound systems, projectors, lighting, etc.) achieve linkage control through Mesh networking.
With the support of Mesh networking, HLK-B26 enables interconnection and data transmission between multiple devices. Whether in smart homes, industrial IoT, health monitoring, or smart cities, agriculture, and retail, mesh networking technology provides a more efficient and flexible solution for interconnectivity between devices.