915MHz Lora/GPS_HAT Wireless Expansion Board Kit Compatible with Raspberry PI Built-in Temperature Sensors Low Battery Indicator Support DGPS SBAS SDK Commands


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This Lora/GPS_HAT is an expansion module for LoRaWan and GPS, compatible with Raspberry Pi. This product is designed for those who are interested in developing LoRaWAN solutions. If you need it, come on and have a try, it will not let you down.

The transceivers uses long ranges modem to provide ultra-long ranges spread spectrum communication and high anti-interference, while minimizing current consumption.
With FSK, GFSK, MSK, GMSK, LoRa™ and OOK modulation, supports DGPS, SBAS(WAAS/EGNOS/MSAS/GAGAN).
GPS automatically switch between internal patch antenna and external active antenna, also support SDK command.
The board can automatically calculate and predict orbits using ephemeris data (up to 3 days) stored in internal flash memory, so the HAT can be quickly positioned with low power consumption even at indoor signal levels.
GPS support short circuit protections and antenna detection and built-in LNA for better sensitivity.

Material: Printed circuit board
Frequency band: 868MHz/433MHz/915 MHz (optional)
Package size: 80 * 80 * 20mm / 3.1 * 3.1 * 0.8in
Package weight: 80g / 2.8ounce

Lora Specifications:
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 Ranges RSSI.
Automatic RF Sense and CAD with ultra-fast AFC.
Packet engine up to 256 bytes with CRC.
Built-in temperature sensors and low battery indicator.

GPS Specifications:
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.
Protocols:NMEA 0183,PMTK.
Horizontal Position Accuracy:Autonomous <2.5 m CEP.
Timing Accuracy:1PPS out 10ns,Reacquisition Time <1s.
Velocity Accuracy Without aid <0.1m/s,Acceleration Accuracy Without aid 0.1m/s⊃2;.
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).

Packing list:
1 * Host
4 * Brass Cylinders
4 * Screws
4 * Nuts
1 * Glue Stick Antenna (868 MHz, 433 MHz or 915 MHz Optional)