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Data Transfer
Make Bluetooth data transfer solutions more streamlined and applicable

Bluetooth pass-through is a wireless data transmission method primarily used to enable wireless data transfer between two devices that originally lack wireless communication capabilities. Its basic concept involves using a Bluetooth communication link to transmit data from one device to another reliably, without the need for complex packaging and verification. Realtek offers two convenient Bluetooth pass-through solutions: Low Energy Bluetooth pass-through and Dual-mode Bluetooth pass-through. The dual-mode Bluetooth pass-through solution combines the advantages of both classic Bluetooth and Low Energy Bluetooth. This solution supports both traditional Bluetooth devices and Low Energy Bluetooth devices, providing users with broader compatibility and higher data transfer rates. It is particularly suitable for devices that require high data transfer demands or need compatibility with multiple Bluetooth standards. Realtek's solutions support a rich set of commands and interfaces, allowing users to fully control Bluetooth functionality through simple commands during their application design. They can also freely choose physical communication interfaces such as UART, SPI, I2C, USB, etc. By using application commands to configure basic parameters of the Bluetooth chip, users can quickly achieve wireless data transmission. Realtek's Bluetooth pass-through solutions offer great flexibility to developers, easily adapting to various application scenarios.

System Structure

The main control MCU in the product extends physical communication interfaces such as UART, SPI, I2C, and USB to connect with the Realtek solution, enabling Bluetooth data passthrough functionality.

Application Scenario

Water heater, bathroom heater Bluetooth passthrough application
Water Heater, Bathroom Heater

Household appliances are wirelessly connected to the mobile phone via Bluetooth and perform relevant basic operations.

Bluetooth pass-through application for electricity meter
Electricity Meter

Household appliances are wirelessly connected to the mobile phone via Bluetooth and perform relevant basic operations.

Bluetooth pass-through application for power equipment
Power Equipment

Electrical equipment is connected to the mobile phone via Bluetooth wireless connection, and performs related basic operations.

Printer safe Bluetooth pass-through application
Printer Safe

The printer safe is wirelessly connected to the mobile device via Bluetooth and performs relevant basic operations.

PoS machines card swipe BLE datatrans application
POS machine card swipe

The card information read by the PoS machine is sent to the mobile phone via Bluetooth wireless connection.

Pet Tracking BLE datatrans Device
Pet Tracking Device

Hanging an electronic bell around a cat's neck not only allows tracking but also records the cat's activities.When you're out and about, you may want to check on your pet's activities throughout the day. An electronic bell is a great idea; it allows you to track all of your pet's movements without needing to remove it. 

Advantages of Solution

Flexible solution

Support dual-mode (BR/EDR/BLE) pass-through and BLE pass-through solution. GATT, SPP and iAP profiles inside for dual-mode,GATT profile inside for BLE mode.

Excellent and stable performance

Baud rate up to 4Mbps,Default baud rate 115200bps,UART I/F (H4 supported),Hardware flow control supported.

Completed development kits

Full-featured dashboard SDK, supporting mobile phone APP engineering, reduces customer's development workload, accelerates the implementation of project.

Recommended Hardware
Choose the SoC that suits your design requirements
RTL8761ATT RTL8753BFJ RTL8762CMF RTL8762EMF
Standard BR/EDR+BLE 4.2 Dual Mode BR/EDR+BLE 5.1 Dual Mode BLE5.0 BLE5.2
Profile GATT and SPP GATT, SPP and iAP BLE BLE
Package (mm) QFN32, 4 x 4 QFN40, 6 × 4 QFN40, 5 x 5 QFN40, 5 x 5
Series RTL8761ATT > RTL8753B RTL8762C > RTL8762E >
Contact Us
If you are interested in the above products, please contact our REALTEK sales or ask our customer support team for more information.