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In the era of the Internet of Things (Интернет вещей), Bluetooth-модули serve as the key bridge for беспроводная связь between smart devices. Физиком’s FSC-BT836B module, built around the Реалтек RTL8761BTV core chip and integrated with independently developed high-performance Bluetooth прошивка, enables fast implementation of Bluetooth wireless transmission functions through simple AT commands. It provides a stable and efficient solution for the networking needs of various smart devices.

 

Dual-Mode Compatibility

The FSC-BT836B fully supports the Bluetooth 5.3 стандартный. While significantly improving data transmission rate, reducing communication latency, and expanding signal coverage, it is fully compatible with previous versions such as Bluetooth 4.2/4.0/3.0/2.1, ensuring seamless connection with both new and old Bluetooth devices. As a dual mode bluetooth module (БР/ЕДР + БЛЕ) , it offers adaptive transmission power support for different modes: it can deliver a maximum transmit power (Техас) of +10dBm in BR/БЛЕ режим, while the maximum transmit power for EDR mode is +7.5dBm. Its receive sensitivity performance is also notable, with a minimum receive sensitivity of -94dBm in 2Mbps EDR mode, and a minimum receive sensitivity of -98dBm in БЛЕ режим.

 

High-Speed and Stable Transparent Transmission

Benefiting from the technical upgrades of the Bluetooth 5.3 protocol and Физиком’s in-depth optimization of Bluetooth firmware, the FSC-BT836B boasts excellent high-speed transparent transmission capabilities, which can easily meet the application scenarios with stringent requirements for transmission speed. Actual test data shows that when transmitting data via the SPP protocol, the module can reach a speed of 80KB/s; when transmitting via the ГАТТ протокол, the speed can reach 65KB/s, far exceeding the average transparent transmission speed of 30-50KB/s of similar Bluetooth-модули на рынке.

 

Низкое энергопотребление

For battery-powered portable smart devices, low power consumption is a core performance requirement. The FSC-BT836B excels in energy efficiency optimization, effectively extending the device’s battery life through precise power management strategies. Its power consumption parameters in different working states are as follows:

  • Спящий режим: 2.5mA in discoverable state, 9.89mA in BR/EDR connection state, 6.15mA in LE connection state;
  • Working mode: 21.75mA in discoverable state, 24.92mA in BR/EDR connection state, 20.79mA in LE connection state.

 

Rich Interfaces

The FSC-BT836B is equipped with a wealth of hardware interfaces, which can flexibly adapt to the hardware connection needs of various projects and provide higher scalability for device development:

  • UART interface: Supports a wide baud rate range of 4800bps–1000000bps (115200bps by default), suitable for high-speed communication data transmission;
  • интерфейс I2C: Can conveniently connect various sensors, memory chips and other peripheral devices;
  • PIO/AIO/PWM interfaces: Support flexible control of external devices to meet diverse functional expansion needs.

Easy to Use

The FSC-BT836B is specially designed to simplify the development process, and users do not need to master complex Bluetooth protocol stack knowledge. The module is pre-burned with Физиком’s general firmware at the factory, and all configuration and control operations can be completed through a complete set of AT command sets. Whether adjusting the UART baud rate, setting the Bluetooth device name, or performing Bluetooth connection management and data transceiving control, all can be quickly realized through simple AT commands. This design helps developers get started quickly, greatly shortens the development cycle of Bluetooth functions, and effectively reduces project R&D costs

 

OTA Upgrade Support

The FSC-BT836B supports OTA upgrade, which enables firmware update via Bluetooth without disassembling the device, providing convenience for product optimization and iteration after launch. The module is also compatible with a variety of core Bluetooth protocols: СЭС (Профиль последовательного порта), СКРЫТЫЙ (Human Interface Device Profile), ГАТТ/К (Generic Attribute Profile), ЗАЗОР (Generic Access Profile), and can seamlessly connect to various Bluetooth devices such as smartphones and tablet computers.

 

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Сценарии применения

The FSC-BT836B can be widely used in multiple IoT sub-sectors, as follows:

  • E-commerce and logistics: Printers, barcode scanners, wireless POS terminals;
  • Health care: Portable monitors, медицинские датчики;
  • Промышленный Интернет вещей: Industrial sensing equipment, wireless control systems, smart meters.