Long Distance 4G Wireless Gateway 433/868/915Mhz GPS Expansion Board For Raspberry Pi

Long Distance 4G Wireless Gateway 433/868/915Mhz GPS Expansion Board For Raspberry Pi

The Lora/GPS_HAT is a expension module for LoRaWan for ues with the Raspberry Pi.This product is intended for those interested in developing LoRaWAN solutions.

The Lora/GPS HAT is based on the SX1276/SX1278 transceiver.The add on L80 GPS (Base on MTK MT3339) is designed for applications that use a GPS connected via the serial ports to the Raspberry Pi such as timing applications or general applications that require GPS information.

The transceivers of the Lora/GPS HAT feature the LoRa™ long range modem that provides ultra-long range spread spectrum communication and high interference immunity whilst minimising current consumption.The Lora/GPD HAT 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.

This board can calculate and predict orbits automatically using the ephemeris data (up to 3 days) stored in internal flash memory, so the HAT can fix position quickly even at indoor signal levels with low power consumption.With AlwaysLocate™ technology, the Lora/GPS HAT can adaptively adjust the on/off time to achieve balance between positioning accuracy and power consumption according to the environmental and motion conditions.The GPS also supports automatic antenna switching function. It can achieve the switching between internal patch antenna and external active antenna.Moreover, it keeps positioning during the switching process.

Features:

• Frequency Band: 868 MHZ/433 MHZ/915 MHZ(Pre-configure in factory)
• 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

Specifications for Lora:

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

Specifications for GPS:

• Base On MTK MT3339.
• 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.
• 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.
• Dynamic Performance Altitude Max.18000m,Maximum Velocity Max.515m/s,Maximum Acceleration 4G.
• L1 Band Receiver(1575.42MHz) Channel 22 (Tracking) /66 (Acquisition).

Package Includes:

• 1 x Lora/GPS HAT
• 4 x Brass cylinders
• 4 x Screws
• 4 x Nuts
• 1 x Glue Stick Antenna(868 MHZ, 433 MHZ or 915 MHZ depends on order)

Shenzhen Qianhai Lensen Technology Co., Ltd mainly designs and produces industrial wireless data communication products including RF module, radio modem, DI, DO, AI, AO module and kinds of RF based remote control, telemetry systems and IOT products.

Our products are widely used in oil, gas, water, power industry, wireless alarm and security systems, intelligent traffics and irrigation, industry automation and many other M2M applications. RF data modules just instead the RS232, RS485 cable between different equipments to transmit serial data. RDIO series are designed for industry ON-OFF control. They are widely used for pump, valve, tank, motor, light, alarm control. RAIO series are used to collect voltage (0-5V) or current (4-20mA) signal. They are widely used to collect kinds of sensors data and signal. The GPRS RTU is suitable for transferring data from device to internet, and transferring data from internet (Monitoring center or server) to device.

Lensen commits to provide our customers better products and service. Our engineers are experts with more than 10 years experience in this field, rising to the challenge of developing high tech and competitive products. Apart from providing a series of off-to-shelf products, Lensen has the capability to cooperate with companies and individuals that need customized products and ODM wireless solution. Choose Lensen, your wireless systems will link faster.

To meet different customer's requirements, we open a new product lind---Wireless irrigation.

we can provide one-stop intelligent wireless irrigation control solution, including DC type valve decoder, AC type valve decoder, wireless irrigation controller, soil moisture sensor, mobile irrigation APP, etc. Our products, software and services help customers manage and optimize project operations, improve interoperability, improve green ecology and enrich people's life.