Review: Getting started with the Dragino LoRa IOT Development Kit
The Dragino LoRa IoT Development Kit is designed to facilitate beginners and developers to quickly learn LoRa and IoT technology. It helps developers to turn project ideas into a practical application and make the Internet of Things (IOT) a reality for an affordable price.
The Dragino LoRa IoT Development kit will show you how to build a fully functional LoRa network, and how to use the network to send data from a LoRa sensor node to a cloud server such as the Things Network.
A number of telecom operators are currently rolling out IOT networks, but because LoRa operates in the open spectrum you can also set up your own network using this development kit. When used as a private LoRa network, the LoRa gateway will connect your other LoRa nodes up to 5km however expect up to 10km range or more (when in line of sight) when connecting your LoRa node to the LoRa gateway.
Development Kit Contents
Lora Gateway
The kit now includes a LG02 Dual Channel LoRa IOT Gateway, replacing the LG01-N. The LG02 bridges the LoRa wireless network to an IP network via Ethernet, WiFi or cellular 3G/4G through an optional LTE module. The LoRa wireless side allows users to send data long distances at a low data rate. The gateway utilizes ultra long range spread spectrum communication technology which gives a high interference immunity.
SX127x Shield is a Arduino shield featuring LoRa technology and based on Open source library.This 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.
SX127x Shield is based
on Semtech SX1276/SX1278 chip, it targets professional wireless sensor
network applications such as irrigation systems, smart metering, smart
cities, smartphone detection, building automation, and so on.
The SX127X GPS Shield is an expension board of LoRa®/GPS for use with the Arduino. This product is intended for those interested in developing LoRa®/GPS solutions.
In the LoRa part,the SX127X GPS Shield is based on the SX1276/SX1278 transceiver.The transceivers of the Shield feature the LoRa® long range modem that provides ultra-long range spread spectrum communication and high interference immunity whilst minimising current consumption.
In the GPS part,the add on L80 GPS (base on MTK MT3339) is designed for applications that use a GPS connected via the serial ports to the arduino such as timing applications or general applications that require GPS information.This GPS module can calculate and predict orbits automatically using the ephemeris data (up to 3 days) stored in internal flash memory, so the shield can fix position quickly even at indoor signal levels with low power consumption.With AlwaysLocate™ technology, the SX127X GPS Shield 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.
Sensor 1: DHT11 Temperature and Relative Humidity Sensor.
Features:
Detect ambient humidity and temperature
Sensor used DHT11
Humidity measuring range: 20% -95% measurement error: + -5%
Temperature measurement range: 0 -50℃ measurement error: + -2℃
Operating Voltage: 3.3V-5V
Output form: Digital output
PCB size: 3.2cm * 1.4cm
Module Interface Pinout (3-wire)
Pin 1 VCC external 3.3V-5V
Pin 2 GND
Pin 3 Data Port: Digital output interface connected to the microcontroller IO port.
Sensor 2: 5V Relay Module
Features:
The 8550 transistor drive, drive ability.
High quality 5v relay.
Have relay status indicator led.
Relay control interface by single chip IO.
Low level suction close, high level release.
Easy to use, simple 3 line structure.
Power LED(Green), relay status indicator LED(Red).
Size: 4.4cm x 2.6cm - 1.7inch x 1inch.
Sensor 3: Ultrasonic Sensor HC-SR04
Features:
Working voltage: DC5V
Quiescent current: less than 2mA
Level output: High 5V
Level output: Bottom 0V
Sensing angle: not more than 15 degrees
Detection range: 2cm-450cm
High precision: up to 0.3cm
Sensor 4: Buzzer Alarm Module
Features:
Module S8550 transistor drive
Working voltage 3.3V-5V
With fixing bolt holes for easy installation
Small board PCB size: 3.2cm * 1.3cm
When the I / O port input low, the buzzer sounds