RN2483 LoRa™ Modem

By Microchip Technology 104

RN2483 LoRa™ Modem

Microchip Technology's RN2483 is a LoRa integrated modem with a range of more than 15 km (suburban), low power enabling a battery life greater than 10 years and the ability to connect millions of wireless sensor nodes to LoRa gateways and IoT-connected cloud servers. This robust system is due to LoRa’s unique spread-spectrum based modulation that is capable of demodulation 20 dB below noise level. This enables high sensitivity for ultra-long-range, improved network efficiency and eliminates interference. The RN2483 modem operates over the 433 MHz and 868 MHz license-free industry scientific and medical (ISM) frequency bands and serves as the end-device in the LoRa network infrastructure.

The RN2483 has the complete LoRaWAN™ protocol stack on the modem and is easy to configure via simple ASCII commands through the UART, greatly reducing development time. The RN2483 is European R&TTE certified, saving significant certification costs. Additionally, it combines a small form-factor, 17.8 mm × 26.7 mm × 3 mm, with 14 GPIOs, providing the flexibility to connect and control a large number of sensors and actuators while taking up very little space.

The RN2483 modem resolves the age-old wireless developer’s dilemma to choose between longer range and lower power consumption. By employing the RN2483, a developer can now maximize both, while eliminating the cost of additional repeaters and increasing battery life. With its scalability, robust communication, mobility and the ability to operate in harsh outdoor environments, the RN2483 is well suited for a broad range of low-data-rate wireless monitoring and control designs.

Features
  • Long range: greater than 15 km
  • Low power consumption for 10+ years of battery life
  • Operates in 433 MHz and 868 MHz bands
  • Embedded LoRaWAN Class A protocol
  • Easy to use ASCII command interface over UART
  • Supply voltage: 2.1 V to 3.6 V
  • Temperature range: -40°C to +85°C
  • Adjustable output power up to +14 dBm
  • High receiver sensitivity down to -148 dBm
  • Device firmware upgrade (DFU) over UART
  • 14 GPIO for control, status and ADC
  • Excellent interference immunity
  • Secure AES-128 encryption
  • European R&TTE directive assessed radio modem
  • Environmentally friendly, ROHS-compliant
Applications
  • Internet of Things (IoT)
  • Metering
  • Machine-to-Machine (M2M)
  • Smart cities
  • Sensor networks
  • Industrial automation
  • Smart homes

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