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

Product Attributes

Introduction

Low-power Bluetooth (BLE) RF module for short-range wireless communication applications. Features low power consumption, compact form factor, extended transmission range, and strong anti-interference capability. Equipped with a high-performance meandering antenna. Operates on the 2.4 GHz ISM band with GFSK modulation (Gaussian Frequency Shift Keying), 40 channels with 2 MHz channel spacing, 3 fixed advertising channels, 37 adaptive frequency-hopping data channels. The physical layer can be combined with classic Bluetooth RF to form a dual-mode device. The 2 MHz channel spacing provides better adjacent-channel interference rejection. Wide output power adjustment range (-20 dBm to +4 dBm), -96 dBm high-gain receive sensitivity. Built on a 32-bit ARM Cortex-M4F CPU with 192KB flash + 24KB RAM. Features rich analog and digital peripherals that can interact without CPU involvement via the Programmable Peripheral Interconnect (PPI) system. A flexible GPIO mapping scheme allows I/O functions (e.g., serial interfaces, PWM, and quadrature demodulator) to be mapped to any device pin as required by PCB layout. Suitable for developing Bluetooth 4.0/4.2/5 (BLE) based consumer electronics and mobile peripheral products, providing a rapid BLE solution for customer products communicating with smart mobile devices. The module supports bridge mode (transparent transmission mode). In bridge mode, the host CPU can communicate bidirectionally with mobile devices via the module's UART. Users can also manage and configure certain communication parameters through specific AT commands. The semantic interpretation 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 is forwarded to the user's MCU via the serial interface. Upon receiving data packets from the user MCU's serial port, the module automatically forwards 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 500ms after power-on. For high-throughput transparent transmission, it is recommended to start transmitting 6 seconds after the connection is established, as operations such as MTU negotiation and connection interval configuration must be completed first — initiating high-speed transparent transmission before this is complete may easily result in packet loss or device lockup.

Applications

• Instrumentation
• Logistics Tracking
• Healthcare
• Smart Home
• Motion Metering
• Automotive Electronics
• Recreational Toys