HackSpace – September 2019

TUTORIAL

Let’s learn LoRa!

Figure 6

Beginning to set up

a dashboard on the

myDevices site

Figure 8

Selecting the

CayenneLPP options

for our dashboard

Above

The standard

dashboard showing

our data

Figure 7

Select The Things Network from the left-hand menu

the two lines under the comment ‘//Replace these

with your AppEUI and AppKey‘) So, of course,

copy and paste those entire two lines from your

Device Overview Example Code box to replace the

similar ones in the Arduino sketch.

DECODING THE PAYLOAD

Save your sketch and then click Verify. If the code

compiles correctly, then double-check that your The

Things Uno is still attached correctly as an Arduino

Leonardo, and the correct port is selected, and then

upload the sketch to The Things Uno. Leave The

Things Uno plugged into your laptop for power after

the sketch has uploaded.

You now have a LoRaWAN node with a sensor

hopefully transmitting its payload of the sensor data

on humidity and temperature, if you are within range

of a gateway (it’s worth taking your laptop and The

Things Uno outside to increase chances!) Returning

to The Things Network website, click the applications

tab and select the application you created, and then in

the Application Overview page, select the ‘Data’ tab

from the upper right-hand side. Wait for a short while,

and you should start to see data packets appear

with some information about the data, and most

importantly, the payload in the end columns stating

the temperature and humidity readings from your

sensor (Figure 5). As we set the application to read

the payload as being of the CayenneLPP type, our

payload is decoded and is nicely displayed, labelled

correctly ‘temperature’ and ‘humidity’, instead of just

a raw collection of bytes. If you click on a particular

Our payload is decoded and is nicely displayed,

labelled correctly ‘temperature’ and ‘humidity’,

instead of just a raw collection of bytes

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