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      Dragino LoRa Shield - support 868M frequency
      Dragino LoRa Shield - support 868M frequency
      Dragino LoRa Shield - support 868M frequency
      Dragino LoRa Shield - support 868M frequency
      Dragino LoRa Shield - support 868M frequency
      Dragino LoRa Shield - support 868M frequency
      Dragino LoRa Shield - support 868M frequency

      Dragino LoRa Shield - support 868M frequency

      SKU 114990615
      $18.90$21.00
      16 Available
      ADD TO CART

      Description

      The Dragino 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.

      The LoRa Shield based on RFM95W targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, smartphone detection, building automation, and so on.

      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. 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.

      These devices also support high performance (G)FSK modes for systems including WMBus, IEEE802.15.4g. The LoRa Shield deliver exceptional phase noise, selectivity, receiver linearity and IIP3 for significantly lower current consumption than competing devices.


      FEATURES

      • • Compatible with 3.3v or 5v I/O Arduino Board.

      • • Frequency Band: 868 MHZ

      • • Low power consumption

      • • Compatible with Arduino Leonardo, Uno, Mega, DUE

      • • External Antenna via I-Pex connector


      SPECIFICATION

      • • 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.

      • • Bullet-proof front end: IIP3 = -12.5 dBm.

      • • Excellent blocking immunity.

      • • Low RX current of 10.3 mA, 200 nA register retention.

      • • Fully integrated synthesizer with a resolution of 61 Hz.

      • • FSK, GFSK, MSK, GMSK, LoRa™ 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.

      • • Packet engine up to 256 bytes with CRC.

      • • Built-in temperature sensor and low battery indicator.


      PART LIST

      • • 1 x LoRa Shield (support 868M frequency)

      • • 1 x 868~915Mhz Antenna


      RELATED PRODUCTS

      Dragino LoRa Shield - support 433M frequency





      Technical Details

      WeightG.W 44g    
      BatteryExclude

      Part List

      LoRa Shield (support 868M frequency)1
      868~915Mhz Antenna1

      Reviews

      Questions and Answers

      SUBMIT
      0
      That shield seems convenient, but the SV2, SV3, SV4 jumpers are not documented and the schematic diagram is incomplete. It does not mention them, nor the two ICs (=level shifters?)
      on Aug 10,2017
      Replyupvote ()
      I'm sorry to disagree, but this is one of the most well documented project for a Chinese product there is! Did you see the Wiki?http://wiki.dragino.com/index.php?title=Lora_Shield...it has a schematic.How about the Github that has all the schematics, where you can easily see what the jumpers are for?https://github.com/dragino/Lora...it has the board layout AND all the examples you could possibly need. It even has the gerber files!If you cannot figure it with that, there is no hope. However, to your point, it would be helpful if they did link to this on their product page! But a quick search and it was easy to find.Basically though to answer your questions:Yes,the IC's are technically 74VHC125's (quad buffers) being used as level shifters - this is how it can work with a 3.3 and 5v board.SV2,3,4 is basically the source for the SPI signals. looking at it as you would read them, to the left gets the source from pins 13,12,11..., to the right gets the source from the ICSP header.Hope it can help you.Good luck with it. I like mine so far!
      on Aug 31,2017 08:46 AM
      Replyupvote ()
      Reply
      0
      Does this module communicate in full-duplex or half-duplex?
      on May 30,2017
      Replyupvote ()

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        Dragino LoRa Shield - support 868M frequency

        SKU 114990615
        $18.90$21.00
        16 Available
        ADD TO CART
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