Dragino LoRa Shield for Arduino®-支持 868M 頻率

規格內容說明

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.

Dragino LoRa Shield是Arduino屏蔽形式的遠程收發器，基於開放源碼庫。LoRa Shield允許用戶以低數據速率發送數據並達到極長的範圍。它提供超長距離擴展頻譜通信和高抗干擾性，同時最小化電流消耗。
基於RFM95W的LoRa Shield面向專業的無線傳感器網絡應用，如灌溉系統，智能測量，智能城市，智能手機檢測，樓宇自動化等。
使用Hope RF的專利LoRa™調製技術，LoRa Shield可以使用低成本的晶體和材料清單達到超過-148dBm的靈敏度。高靈敏度與集成的+20 dBm功率放大器結合，產生業界領先的鏈路預算，使其適用於任何需要範圍或魯棒性的應用。與常規調製技術相比，LoRa™在阻塞和選擇性方面也具有顯著的優勢，可以解決傳統的範圍，抗干擾能力和能量消耗之間的設計折衷。
這些設備還支持包括WMBus，IEEE802.15.4g在內的系統的高性能（G）FSK模式。LoRa Shield提供卓越的相位噪聲，選擇性，接收器線性度和IIP3，可以顯著降低電流消耗，而不是競爭器件。

此商品可兼容Arduino®

FEATURES

• Compatible with 3.3v or 5v I/O Arduino Board. 兼容3.3v或5v I / O Arduino板。
• Frequency Band: 868 MHZ/433 MHZ (Pre-configure in factory) 頻段：868 MHZ / 433 MHZ（工廠預配置）
• Low power consumption 低功耗
• Compatible with Arduino Leonardo, Uno, Mega, DUE  兼容Arduino Leonardo，Uno，Mega，DUE
• External Antenna via I-Pex connector 通過I-Pex連接器連接外部天線

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.
•  168 dB的最大鍊路預算。
•  +20 dBm - 100 mW恆定RF輸出與
•  +14 dBm高效PA。
• 可編程比特率高達300 kbps。
• 高靈敏度：低至-148 dBm。
• 防彈前端：IIP3 = -12.5 dBm。
• 優異的抗粘連性。
• 低的RX電流為10.3 mA，200 nA寄存器保持。
• 完全集成的合成器，分辨率為61 Hz。
•  FSK，GFSK，MSK，GMSK，LoRa™和OOK調製。
• 內置位同步器，用於時鐘恢復。
• 前導碼檢測。
•  127 dB動態範圍RSSI。
• 自動射頻感應和超快速AFC的CAD。
• 帶CRC的數據包引擎高達256字節。
• 內置溫度傳感器和低電量指示。

Technical Details

Weight	G.W 44g
Battery	Exclude

出貨清單

• LoRa Shield(support 868M frequency) LoRa Shield（支持868M頻率） x 1
• 868~915Mhz Antenna 868〜915Mhz天線 x 1