HLK B50 TTL Bluetooth Module

(Including GST)

TTL Bluetooth Module HLK B50 by ADIY for seamless wireless connectivity. This advanced BLE5.0 dual-mode module enables transparent transmission of data over Bluetooth, supporting both Bluetooth SPP and GATT modes simultaneously. With its versatile compatibility, easily transmits data wirelessly between various devices equipped with serial ports. Upgrade your connectivity experience with the HLK-B50 TTL Bluetooth Module for efficient and reliable Bluetooth communication.

Applications: TTL Bluetooth Module HLK B50

Heart Rate Monitoring
Speaker
Blood Pressure Monitoring
Communication between mobile and system
Control motor pump using mobile.

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Description

B50 TTL Bluetooth Module

B50 TTL Bluetooth Module is a BLE5.0 dual-mode Bluetooth-serial port transparent transmission module, which can support Bluetooth SPP and GATT transparent transmission at the same time. Various devices with serial ports can be easily and quickly transmitted through this module. Send and receive data wirelessly using Bluetooth.

Applications: B50 TTL Bluetooth Module

Heart Rate Monitoring
Speaker
Blood Pressure Monitoring
Communication between mobile and system
Control motor pump using mobile.

Features: B50 TTL Bluetooth Module

Wide operating voltage 3.5~6V.
Built-in 32-bit ARM Cortex M3 core, the main frequency can reach 48MHz,
Fast and stable Bluetooth-serial port transparent transmission, the serial port baud rate can reach 921600 by default 115200 baud rate.
Master-slave integrated Bluetooth BLE 5.0 can be set as master or slave mode, supporting binding encryption.
With dual-mode Bluetooth, data can be transparently transmitted through GATT or SPP and connected at the same time.
Built-in Watchdog, reliable operation for a long time.

Working: B50 TTL Bluetooth Module

The working mode of the module (transparent transmission and AT command mode) HLK-B50 module has Transparent mode and AT command mode Two working states. In the AT command mode, you can send AT commands to the module through the serial port to query and set the parameters of the module. In the transparent transmission mode, the module will perform a two-way transparent transmission of serial port data and Bluetooth connection data. When the module starts, the default is transparent transmission mode. Exit the transparent transmission mode and enter the AT mode, which will not affect the Bluetooth connection status. The serial port-Bluetooth data transparent transmission is suspended, and the data received by the serial port is processed by the current AT command; after the transparent transmission is resumed, the data transparent transmission will continue. In the transparent transmission mode, the 9th pin PC7 is input with a short low level (0.5~3s), and the module will exit the transparent transmission and switch to the AT command mode. In AT command mode, send the AT+TS=1 command to exit AT command mode and return to transparent transmission mode.

B50 TTL Bluetooth Module – Datasheet