Screens and buttons are nice, but it's time to add network capabilities to our Arduino projects. We're going to use an Ethernet shield with an Arduino UNO to build a few basic network-enabled gadgets.

Parts

Geek credit UNO R3 ATmega 328P Dev Board ~$4

Geek credit Ethernet Shield Module W5100 MicroSD ~$6

- or -

W5100 Ethernet Shield R3 (PoE) ~$10


Basics
* There are examples of Ethernet projects build into the Sketch IDE

Ethernet Server with Analog Input

Code Example: _01_WebServer
* Code for this example is under "File - > Examples -> Ethernet -> WebServer"

* We need to change the following in the code:
-- Set the IPAddress to "192.168.0.229"
-- Change the "for" loop so there are only 2 Analog reads

* We need to wire the following:
-- Power to the outer POT pins
-- Center pins to A0 and A1

** Play with the "Refresh" setting to show a quicker refresh

Hosts: Fr. Robert Ballecer, SJ and Bryan Burnett

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