AJMRTC Bluetooth 5.3 Digital Transmission Module, UART Serial Port Pass-Through Wireless Module, Slave Mode BLE Transparent Transmission Board, Supports Secondary Development for IoT, Arduino, Embedde

AJMRTC Bluetooth 5.3 serial pass-through module is a flexible wireless communication unit built for embedded developers and electronic makers. It works in slave mode by default and realizes seamless UART transparent transmission: data received from the serial TX pin will be forwarded wirelessly via Bluetooth, and Bluetooth data received will be output from the RX pin, just like extending your serial cable wirelessly. Based on Bluetooth 5.3 BLE technology, it delivers improved connection stability, reduced latency and optimized power consumption compared with older Bluetooth versions. You can configure baud rate, broadcast name, transmit power and other parameters via AT commands. It reserves hardware interfaces and SDK support for secondary development, allowing you to customize broadcast content, add data filtering logic and develop exclusive IoT functions. It works perfectly with Arduino, STM32, Raspberry Pi and other mainstream MCUs. It is widely applied to smart home sensors, wireless data loggers, remote control equipment, testing fixtures and small IoT terminals. Basic embedded programming knowledge is recommended for advanced secondary development.

Specifications

Brand: AJMRTC

Bluetooth Version: Bluetooth 5.3 BLE

Working Mode: Slave Mode

Core Function: UART Serial Port Pass-Through / Transparent Transmission

Development Support: AT Command Configuration, Secondary Development

Interface: UART Serial

Application: IoT, Sensor Collection, Embedded Control, Electronic DIY

Package: 1 x Digital Transmission Module