آر اف (فرکانس رادیویی) و بی‌سیم ماژول‌ فرستنده‌گیرنده و مودم آر اف

Product Attributes

Introduction

RF-BM-2340B1 is a SimpleLink 2.4 GHz wireless module supporting Bluetooth 5.3 Low Energy, Zigbee, IEEE 802.15.4g, TI 15.4-Stack (2.4 GHz), and proprietary protocols. It integrates a high-performance ARM Cortex-M0+ processor with 512 KB Flash and 32 KB ultra-low leakage SRAM. The module exposes 24 IOs with multiple peripherals including I²C, UART, SPI, ADC, and GPIO. BLE 5 features supported include: high-speed mode (2 Mbps PHY), long-range advertising (LE Coded 125 kbps and 500 kbps PHY), with backward compatibility for key features of BLE 4.2 and earlier BLE specifications. The module can operate in bridge mode (transparent transmission mode). In bridge mode, the host MCU can communicate bidirectionally with mobile devices via the module's general-purpose UART. Users can also manage and configure certain communication parameters through specific AT commands over the serial interface. The specific meaning of user data is defined by the upper-layer application. Mobile devices can perform write operations to the module via an APP, and the written data will be forwarded to the host MCU through the module's UART. Upon receiving data packets from the host MCU's serial port, the module will automatically forward them to the mobile device. In this mode, users are responsible for both the host MCU firmware design and the mobile APP code development. To ensure firmware stability, the module begins normal operation 2200 ms after power-on. For high-throughput transparent transmission of large data, it is recommended to start 6 seconds after the connection is established, as the connection setup requires time to negotiate MTU, connection interval, and other parameters — initiating high-speed transparent transmission during this period is prone to packet loss or device lockup.

Features

• Easy to use, no BLE stack application experience required
• Supports BLE single-master mode, single-slave mode, master-slave mode, and Beacon mode
• Module can operate simultaneously as both master and slave roles, accepting connections from other master devices while also connecting to other slave devices (master-slave mode)
• Master role supports multi-connection: up to 4 simultaneous slave connections in single-master mode; up to 3 simultaneous slave connections in master-slave mode while also being connected to another master device as a slave
• Default 20 ms connection interval for fast connection establishment with excellent Android and iOS compatibility
• User interface uses universal UART design with full-duplex bidirectional communication; minimum baud rate 1200 bps, maximum 921600 bps
• Supports AT command software reset
• MAC address retrieval; supports AT command MAC address modification (takes effect after reset)
• Supports AT command adjustment of BLE connection interval to control forwarding rate (dynamic power consumption adjustment)
• Supports AT commands for transmit power adjustment, advertising interval modification, UART baud rate modification, module name modification, and more
• Supports AT command modification of Service UUID
• Supports AT command modification of UART frame size
• In master or master-slave mode, supports custom selection of UUID channels for receiving and transmitting
• AT commands can be sent via APP or UART
• High-speed transparent forwarding with stable 30 KB/s throughput (512000 bps)
• Supports modification of PHY communication rate: 1M, 2M, and LE_CODED (125K & 500K)
• Supports custom advertising data with maximum custom length of 26 bytes