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Day 8: Lessons – Internet of Arduino Things Part 2

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From Twitter to your Desk

Previously we looked at firing data out at the internet, but often we want our devices to respond TO the internet.

In our projects today, we will look at using Processing to grab the weather from a chosen city, and the internet-accurate time in a particular time zone, and while displaying the information on screen, also light up a notification LED so that we don’t have to be looking at the application window.

We will also check out the Blynk application and Internet of Things service, which allows us to hook up not just services like IFTTT, but also control our Arduino from a phone app, and more.

In both examples we have an LED connected to the PWM pin, digital 3.

Toque Notifier

While in my example we are going to use the Ethernet connection as in the previous day’s lesson, Blynk have a script that you can run on your machine that makes such additional add-ons unnecessary provided your PC has internet access.

Blynk for Uno with ENC28J60 Ethernet

   VCC -- 5V
   GND -- GND
   CS  -- D10
   SI  -- D11
   SCK -- D13
   SO  -- D12