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

Product Attributes

Introduction

E220-900T30D is a wireless serial module adopting next-generation LoRa spread spectrum technology, operating in the 850.125~930.125MHz frequency band with a default frequency of 873.125MHz. It features TTL-level output, compatible with 3.3V and 5V IO voltage levels. The module supports air wake-up, carrier sense, communication key, and sub-packet length configuration.

Features

• Next-generation LoRa spread-spectrum modulation based on LLCC68, offering extended communication range and enhanced anti-interference capability
• User-configurable communication keys with read protection for improved data confidentiality
• LBT support — monitors channel ambient noise before transmission to improve communication success rate in harsh environments
• RSSI indication for signal quality evaluation, network optimization, and ranging
• Over-the-air wake-up (ultra-low power mode) for battery-powered applications
• Point-to-point transmission, broadcast transmission, and channel monitoring
• Deep sleep mode with whole-unit power consumption of approximately 5μA
• Integrated PA and LNA; communication range up to 10 km under ideal conditions
• Parameter retention after power loss; module resumes operation with configured parameters on power-up
• Efficient watchdog design — automatically restarts and resumes operation with previous parameters upon anomaly
• Data rate: 2.4kbps to 62.5kbps
• Supply voltage: 3.0V to 5.5V; supply above 5V recommended for optimal performance
• Industrial-grade design for long-term operation at -40℃ to +85℃
• SMA antenna connector

Applications

• Home security alarms and remote keyless entry
• Smart home and industrial sensors
• Wireless alarm and security systems
• Building automation solutions
• Wireless industrial remote control