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

Product Attributes

Introduction

This module is a low-power Bluetooth transparent transmission module that supports configuration via AT commands. The module's UART interface features RTS functionality, which can be enabled or disabled through commands; current consumption details are provided in the current specifications section of the documentation. Due to the nature of the BLE protocol, the transparent transmission function does not guarantee data integrity or packet delivery order. When performing large-volume data transfers, users must implement their own checksum algorithms and retransmission mechanisms to ensure data integrity. Factory default parameter settings are provided in the documentation for reference.

Features

• Operating voltage range: 2.0V~3.8V
• Sleep mode via AT command, power consumption below 0.2μA (requires additional UART enable pin)
• Data AES encryption via AT command, disabled by default
• Connection binding password via AT command; auto-disconnect if no connection within 10 seconds; default pairing password: 123456
• Long-byte device name modification via AT command, maximum length 28 bytes
• UART default configuration: baud rate 9600bps, 1 start bit, 8 data bits, 1 stop bit, no parity
• UART baud rate modification via AT command, up to 1382400bps
• AT command support for querying module manufacturer name, firmware version, factory reset, and software reset
• Module name, advertising interval, and TX power modification via AT command
• AT command support in connected state (some commands will cause disconnection)
• Module starts advertising at 100ms intervals upon power-up until a Bluetooth connection is established with a mobile device
• Long-byte data transmission: after Bluetooth connection is established, up to 243 bytes of data transfer between host MCU and module, and between mobile device and module
• Bluetooth connection interval can be confirmed or adjusted from the mobile device side based on power-saving requirements after connection
• Service UUID and characteristic UUID modification via AT command