아두이노 LoRa/GPS 쉴드
(LoRa/GPS Shield For Arduino)
개요
- 본 제품은 아두이노용 LoRa/GPS 쉴드입니다.
- 쉴드와 LoRa BEE 모듈이 결합되어 있는 형태의 제품입니다.
- LoRa 모듈은 SX1276/SX1278 트랜시버를 기반의 모듈이며, GPS 모듈은 L80 GPS (MTK MT3339) 입니다.
특징
- Frequency Band: 868 MHZ
- Low power consumption
- Compatible with Raspberry Pi 2 Model B/Raspberry Pi 3.
- LoRa™ Modem
- FSK, GFSK, MSK, GMSK, LoRa™ and OOK modulation
- Preamble detection
- Baud rate configurable
- Built-in temperature sensor and low battery indicator
- Excellent blocking immunity
- Automatic RF Sense and CAD with ultra-fast AFC
- Support DGPS, SBAS(WAAS/EGNOS/MSAS/GAGAN)
- GPS automatic switching between internal patch antenna and external active antenna
- PPS VS. NMEA can be used in time service
- Support SDK command
- Built-in LNA for better sensitivity
- EASY™, advanced AGPS technology without external memory
- AlwaysLocate™, an intelligent controller of periodic mode
- GPS FLP mode, about 50% power consumption of normal mode
- GPS support short circuit protection and antenna detection
- LoRa Spec
-
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, 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.
-
Packet engine up to 256 bytes with CRC.
GPS Spec
-
Based on MT3339.
-
Power Acquisition:25mA,Power Tracking:20mA.
-
Compliant with GPS, SBAS.
-
Programmable bit rate up to 300 kbps.
-
Serial Interfaces UART: Adjustable 4800~115200 bps,Default: 9600bps.
-
Update rate:1Hz (Default), up to10Hz.
-
I/O Voltage:2.7V ~ 2.9V.
-
Protocols:NMEA 0183,PMTK.
-
Horizontal Position Accuracy:Autonomous <2.5 m CEP.
-
TTFF@-130dBm with EASY™:Cold Start <15s,Warm Start <5s,Hot start <1s;TTFF@-130dBm.without EASY™:Cold Start <35s,Warm Start <30s,Hot Start <1s.
-
Timing Accuracy:1PPS out 10ns,Reacquisition Time <1s.
-
Velocity Accuracy Without aid <0.1m/s,Acceleration Accuracy Without aid 0.1m/s².
-
Sensitivity Acquisition -148dBm,Tracking -165dBm,Reacquisition -160dBm.
-
Environmental:Operating Temperature -40°C to 85°C,Storage Temperature -45°C to 125°C.
-
Dynamic Performance Altitude Max.18000m,Maximum Velocity Max.515m/s,Maximum Acceleration 4G.
-
L1 Band Receiver(1575.42MHz) Channel 22 (Tracking) /66 (Acquisition).
-
- Part List
-
1 x LoRa /GPS Shield mother board.
1 x LoRa BEE.
1 x Glue Stick Antenna(868 MHZ)
-