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

Product Attributes

Introduction

The A7139-S433 wireless module is a low-cost, high-efficiency transceiver module operating below 1GHz. It supports China's smart grid wireless meter reading standard (410MHz~510MHz), as well as the 868.3MHz and 868.95MHz bands used for wireless automatic meter reading in Europe. It is also compatible with 315/433/470/868/915MHz ISM/SRD bands within 1GHz. This module has been deployed at massive scale in national standard smart wireless meter reading systems, IoT ad-hoc network bidirectional data transmission solutions, and has been widely adopted by leading automotive anti-theft device manufacturers in mainland China and Taiwan. With its advantages of low power consumption, high receiver sensitivity, and high transmit power, it is the preferred module for both short- and long-range wireless data transmission applications.

Features

• Center frequency 433MHz, operating range 410–480MHz, dual modulation GFSK/FSK, programmable
• Supply voltage 2.2~3.6V DC
• Low power consumption, RX current <4mA (AGC Off), ultra-low power mode <0.3uA
• WOR function with programmable standby/receive switching interval for reduced power consumption
• Transmission range >1000m in open field
• Programmable output power 0~20dBm
• High receive sensitivity -117dBm (2Kbps)
• Data rate 0~250Kbps, programmable
• Precision digital RSSI carrier signal strength detection
• FIFO and Direct dual data transfer modes
• 3-wire or 4-wire SPI communication modes
• Compact form factor 20×15mm

Applications

• Logistics tracking, warehouse inspection, electronic labels, etc.
• Wireless data communication as replacement for RS-232/RS-485
• Industrial instrumentation wireless data acquisition and control
• AMR (water, electricity, gas) meter reading
• Building and residential (smart home) control
• Consumer electronics wireless remote control
• Wireless alarm and security systems