Modern individuals are increasingly concerned about health, fitness, exercise, and personal habits, leading to a growing demand for monitoring personal life data. The smart wearable device market is expected to exceed $100 billion by 2025. The demand for tracking exercise data, analyzing sleep quality, and other monitoring needs has driven the continuous growth of low-power Bluetooth technology.
The dual-mode Bluetooth HLK-B50, which supports transparent transmission and AT command mode, along with its fast low-power transmission speed, is highly suitable for the development of various wearable smart products.
Introduction to the B50 Module
The HLK-B50 module features an ARM Cortex M3 core with a maximum frequency of 48MHz. The B50 is also a dual-mode Bluetooth module, supporting BR/EDR and BLE dual-mode Bluetooth 5.0, and supports SPP or GATT communication. Its dual-core chip design provides powerful computing capabilities, allowing it to replace some microcontrollers as the main MCU.
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Built-in 32-bit ARM Cortex M3 core, with a maximum frequency of 48MHz
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Fast and stable Bluetooth-serial transparent transmission, with a serial baud rate of up to 921600
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Dual-mode Bluetooth BLE 5.0, can be set as either master or slave mode, supports binding encryption
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Dual-mode Bluetooth, capable of data transmission via GATT or SPP, and can connect simultaneously
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Supports A2DP V1.3 and AVRCP V1.6, with built-in Audio CODEC
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Built-in lithium battery charging circuit, with a charging current of up to 200mA
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Built-in LDO, adjustable LDO output voltage
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Includes a watchdog for reliable long-term operation
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Wide operating voltage range of 2.6~4.2V, typical value of 3.3V
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Rich output pins (UART, I2C, SPI, GPIO, ADC, PWM, I2S, etc.), convenient for connecting various sensors
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Offers flexible and in-depth hardware and software customization development services
Features of the B50 Module
Dual-Mode Design
The HLK-B50 module supports free switching between master and slave roles, allowing it to actively connect to other devices or be connected to multiple masters simultaneously, meeting complex networking requirements.
Ultra-Low Power Consumption
The HLK-B50 module strictly controls power consumption to below 8mA, with a built-in lithium battery charging circuit, making it particularly suitable for battery-powered wearable devices, significantly extending product battery life.
High-Speed Long-Distance Transmission
The HLK-B50 module uses the SPP communication protocol, achieving a transmission speed three times faster than traditional BLE, with an effective range of 30-80 meters in open environments, suitable for large-scale deployment scenarios.
Plug-and-Play Transparent Transmission
The HLK-B50 module provides a bidirectional transparent transmission channel between serial and Bluetooth, eliminating the need to handle the Bluetooth protocol stack, enabling quick wireless data exchange between devices.
Application Scenarios
The B50 Bluetooth module is primarily used in wearable devices to achieve wireless data transmission and smart interaction. In scenarios such as health monitoring and exercise tracking, the B50 Bluetooth module can transmit data such as steps, trajectory, and calorie consumption to mobile apps, allowing users to view exercise reports or share them on social platforms.