RS232 Bluetooth Serial Adapter Communication Master Slave Module

RS232 Bluetooth Serial Adapter Communication Master Slave Module is a compact wireless communication device that enables Bluetooth serial data exchange with RS232-enabled systems. It supports both master and slave modes and is commonly used in industrial automation, embedded systems, and legacy serial device communication without requiring a wired connection.

Key Features:

• Dual Mode Support: Can operate as Master or Slave via hardware switch.
• Built-in RS232 Interface: Directly connects to legacy devices like PLCs, CNC, or modems.
• Wireless Communication: Provides serial data transfer over Bluetooth without physical cables.
• USB Power Option: Can be powered through onboard micro USB port or external supply.
• Onboard Status LED: Indicates power and connection status for easier debugging.

Technical Specifications:

• Bluetooth Version: Bluetooth 2.0 (Class 2)
• Communication Interface: RS232 (DB9 Male)
• Baud Rate: Configurable from 1200 to 115200 bps
• Power Supply: 3.6V to 6V DC or USB 5V
• Default Baud Rate: 9600 bps (can be changed via AT commands)

Mechanical Specifications:

• Connector Type: DB9 Male (Standard RS232)
• Board Dimensions: Approx. 50mm × 30mm × 18mm
• Indicator: LED indicators for mode and connection status
• Enclosure: Open PCB, suitable for embedding in custom cases

Pinout and Modes:

• Master/Slave Switch: Selectable via onboard hardware switch
• Micro USB: For power input and optional configuration
• RS232 TX/RX: Standard data transmission and reception pins

Datasheet and Reference Guide:

• RS232 Bluetooth Adapter Technical Reference and AT Command Manual (PDF)

Applications:

• Industrial Communication: Wireless control and data logging from PLCs and sensors.
• Retrofit Systems: Adds wireless capability to legacy RS232 equipment.
• Home Automation: Used with microcontrollers for wireless control.
• Diagnostic Tools: Bluetooth interface for serial debugging and monitoring.
• Embedded Projects: Communicates with UART devices without cables.

Equivalent Modules:

• HC-05 with RS232 Adapter: Similar functionality in DIY-friendly format
• USR-BT232: Commercial RS232 to Bluetooth converter module
• BTA-06: Compact RS232 Bluetooth module with battery support

Package Includes:

• 1 x RS232 Bluetooth Serial Adapter Module