Hardware Reference
In-Depth Information
Summary
In this chapter, we created another Internet of Things project using the web service Tem-
boo. Based on Temboo, we built two exciting applications. The first one was to automatic-
ally log measurements inside a Google Docs spreadsheet. Compared to the approach we
took in the previous chapter, the advantage here is clearly that Google Docs is the widely
used standard to create and share spreadsheets. You can access your data from anywhere
just by using a web browser, and you can also plot the data and share it easily with your
friends and family.
We also built an exciting application where we interfaced our project with Gmail via Tem-
boo. We built an automated e-mail alert system based on the measured data.
Let's see what the major takeaways of this chapter were. First, we built the hardware of the
project, with the DHT11 temperature and humidity sensor on top of the Arduino Ethernet
shield.
Then, we set up the different accounts that were needed for the project. We first created a
spreadsheet on Google Docs and configured it correctly so it can work with Temboo. Then,
we also created a Temboo account and configured it so that your Ethernet shield can send
data to Temboo and log measurements to Google Docs.
After the setting up phase, we built the first application of this project, which consisted of
logging data directly to a Google Docs spreadsheet. We also displayed this data using the
Google Docs plotting capabilities.
Finally, we used Temboo again to create an automated e-mail alert system by sending an e-
mail automatically to the address of your choice when a measurement reached a given
threshold.
As this is the end of this topic, let's see what we learned about the Arduino Ethernet shield
and what exciting applications we can create with it.
The first part of the topic was all about running a web client on the Ethernet shield. We
made a first test by just trying out the shield and seeing whether it could connect to the In-
ternet and grab the contents of a page. Then, we built our first measurement system, where
the Ethernet shield was connecting to a server running to your computer to log some data.
