PatrIoT Datasheet

Datasheet – PatrIoT

DSPWorks’ India band high power LoRa radio module

 

Document Title: DSPDS/LRM/0118001
Version: 1.00
Dated: 31 January 2018
Author: Fahad Ansari

 

 


Contents

Introduction

Features

Description

Block Diagram

Pinout

Pin Description

Connections : SX1276 – STM32L15xx

Connection Diagram – Programming

Connection Diagram – External Communications

Electrical Specification

Radio Characteristics

Physical Dimensions

Available Applications

Notes

Warnings


Introduction

This document provides detailed information on DSPWorks’ India band LoRa module named PatrIoT, offering high transmit power at lower power consumption.

Features

  • LoRa and FSK technology supported
  • Class A and Class C LoRa mode operations
  • LoRaWAN Protocol Stack available
  • 30dBm Transmit Power
  • -136 dBm Receiver sensitivity
  • Low Receiver current consumption : <20mA
  • Standby mode current consumption : <100uA
  • Sleep mode current consumption : 2uA
  • Available for India free band, 865MHz to 867 MHz
  • On board powerful CortexM3 MCU
  • Available ports : 2 UART, 3 USART, 2 I2C, 3 SPI, 9 ADC & 9 GPIO (configurable)
  • AT commands available providing immediate deployment and quick prototyping

Description

DSPWorks’ PatrIoT uses Semtech’s SX1276 chip and is powered by STM Cortex M3 controller (STM32L15xx) along with additional PA and LNA to boost power for even longer range. The PatrIoT can also be used in FSK mode. The module is LoRaWAN compliant with Class A and Class C mode of operations.

PatrIoT is suitable for LoRaWAN sensor applications and can be customized for majority of IoT products. The PatrIoT can communicate with LoRaWAN gateway and can also be configured for peer to peer Communications.

Designed in an optimum 35mm x 50mm size, it ensures all your IoT applications are fulfilled with best performance and cost.

Applications

Temperature and Humidity Sensor

GPS Tracker

Serial Modem

AMR (Automated Meter Reader)

Home and Building Automation

Industrial Monitoring and Automation

Security and alarming


Block Diagram

Pin-out


Pin Description


Connections: SX1276 – STM32L15xx

Connection Diagram – Programming


Connection Diagram – External Communications


Electrical Specification

Supply Voltage                                 : 5V – 6.5V

TX Current                                         : 650mA

Peak TX Current                               : 800mA

RX Current                                         : 15mA

Peak RX Current                               : 20mA

Standby Current                               : <100uA

Sleep mode Current                         : 2uA

Radio Characteristics

Operation Mode                               : LoRa and FSK

Operation Frequency range           : 865MHz to 867MHz (India free band)

Supported Bandwidth                     : 125kHz, 250kHz

Supported Data rate                        : 0.018 – 300kbps

Transmit Power (Total TX Out)    : 29 – 30dBm

PA Gain                                              : 20 – 22dBm

LNA Gain                                           : 16dBm

Receiver Sensitivity  (LoRa)          : – 136dBm

Link Budget (Typical)                     : 150dBm

Recommended antenna gain         : +2dBi to +6dBi

Antenna Connector                         : Edge mount SMA Female


Physical Dimensions

Available Applications

  • PatrIoT based Temperature and Humiture Sensor

Humiture Device (HDC1080) connected to PatrIoT module sends Humidity and temperature data to server. Please visit DSPWorks’ web shop at dspworks.in/shop for product details and availability.

  • PatrIoT based GPS Tracker

A tiny GPS module on PatrIoT acting as a GPS tracker can be used for Asset tracking, inventory tracking and even person tracking. Please visit DSPWorks’ web shop at dspworks.in/shop for product details and availability.

  • PatrIoT based Serial Modem

A pair of PatrIoTs can be used as serial Modem, sending data fed on serial port at one end and receiving same data at other end on serial port for further actions. This application can be used for serial communication, remote monitoring or even controlling devices remotely. Please visit DSPWorks’ web shop at dspworks.in/shop for product details and availability.


Notes

  • Ensure J3 is always shorted with jumper
  • Ensure there is no polarity swap at input voltage
  • 3V3 and 3V6 are generated on board, no need to supply these to board
  • Link Budget calculation will depend on mode and configuration

Warnings

  • TX Power of SX1276 should never exceed 8dBm. Power higher than this can damage RF front End and/or PatrIoT
  • Never power up PatrIoT without antenna connected to it. The RF reflection can damage radio transceiver
  • Power supply less than 4.5V can cause performance issues
  • Make sure power supply is able to supply a peak current of 1A to achieve maximum TX Power and maximum range

you can also download this datasheet from Datasheet-Patriot

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