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Price: $34.76

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The Elecrow Lora Shield is a long range transceiver on a Arduino shield form factor and based on Open source library.The Lora Shield allows the user to send data and reach extremely long ranges at low data-rates.It provides ultra-long range spread spectrum communication and high interference immunity whilst minimising current consumption.
Using Hope RF's patented LoRa� modulation technique the Lora Shield can achieve a sensitivity of over -148dBm using a low cost crystal and bill of materials. The high sensitivity combined with the integrated +20 dBm power amplifier yields industry leading link budget making it optimal for any application requiring range or robustness. They can easily go 2 km line of sight using simple wire antennas, or up to 20 km with directional antennas and settings tweakings. LoRa� also provides significant advantages in both blocking and selectivity over conventional modulation techniques, solving the traditional design compromise between range, interference immunity and energy consumption .
The RFM95 Shield is an inexpensive and versatile radio module. You can use it to send text or binary data between two or hundreds of modules. It�s perfect for building inexpensive long-range wireless networks for home automation, citizen science, and more.
 

Features

  • 168 dB maximum link budget
  • +20 dBm - 100 mW constant RF output vs.
  • +14 dBm high efficiency PA.
  • Programmable bit rate up to 300 kbps.
  • High sensitivity: down to -148 dBm
  • Excellent blocking immunity
  • Fully integrated synthesizer with a resolution of 61 Hz
  • FSK, GFSK, MSK, GMSK, LoRaTM and OOK modulation
  • Built-in bit synchronizer for clock recovery
  • Preamble detection
  • 127 dB Dynamic Range RSSI
  • Automatic RF Sense and CAD with ultra-fast AFC

Specifications

  • Frequency Range: 868-915 MHz
  • Spreading Factor?6-12
  • Bandwidth?7.8-500kHz
  • Effective Bitrate:.018-37.5 kbps
  • Est. Sensitivity: -111 to -148 dBm

Package list

  • Lora RFM95 Shield- 915MHZ x1

Wiki & External links