Weather Dashboard with MKR1000 and Losant

Introduction

This project shows you how to make use of MKR1000 and Losant platform to build a simple weather dashboard monitoring temperature and humidity.  With additional sensors, other weather metrics can be collected and analyzed so that more complex dashboard can be built.

Setup MKR1000 with WiFI

For setup instructions on how to configure MKR1000 with WiFi, please refer to this resource.  To setup WiFi, refer to this link.

HTTPS

The Arduino MKR1000 supports HTTPS, but the limited memory size requires the certificate be uploaded to WiFi chip. This is a two steps process. First we load a sketch on the board and then run a program on our computer to upload the certificates.

Use the Arduino IDE to load the Firmware Updater Sketch onto your board.

Examples -> WiFi101 -> Firmware Updater

Second, download the WiFi101 Firmware Updater.  Unzip the archive and run winc1500-uploader-gui.exe.

The HTTPS certificate for Losant webhooks is issued to triggers.losant.com. Enter triggers.losant.com in the text field. Choose your COM port and upload the certificates.

Arduino Code

Losant Platform and Webhooks

Losant is a simple and powerful IoT cloud platform for developing the next generation of connected experiences. Losant offers device management with robust data visualization that reacts in real-time.

In this project, Losant's webhook is used to send the temperature and humidity data to Losant platform.  Webhooks allow MKR1000 to trigger the MKR1000 Weather App application workflows via HTTP requests.

Setup Losant elements and dashboard

Create Application

Create Device

Add two device attributes: temperature and humidity.

Create Webhook

Take note of the webhook URL.

Create Workflow

Add Webhook Trigger

Select the correct webhook from the dropdown.

Add Function Logic

Leave the function logic with default values.

Add Device Output

Select a device ID and set temperature state as '{{data.body.temperature}}' and humidity state as '{{data.body.humidity}} '.

Create Dashboard

Add Temperature Block

Set temperature as Number Gauge.

Add Humidity Block

Set humidity as Dial Gauge.

Add Temperature vs Humidity Block

This a time series block.  Pick the temperature and humidity attributes as data points.  Time range is 60 minutes and one data point every 1 minute.

The dashboard