Added readme

Author: mhord

README.md

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+Stranger Things Wall project
+============================
+
+Send your own messages from the upside down with this creepy project!
+
+Using [individually addressable LEDs](https://www.sparkfun.com/products/12986),
+we've recreated Joyce's Christmas light message board from the Netflix original
+series "Stranger Things". In this repository, you'll find the code necessary to
+enable a string of LEDs to capture and display tweets.
+
+You'll need some kind of Arduino to communicate with the LEDs (we used a
+[Pro Mini](https://www.sparkfun.com/products/11113) and some kind of PC that
+can run Python (we used a [pcDuino3](https://www.sparkfun.com/products/12856)
+because of its built in WiFi and native Python support, and because we had one
+lying around unused, but any internet enabled SBC should work).
+
+The Arduino code was written in the Arduino.cc IDE v1.6.9, and the Python code
+is running under Python 2.7.3. You'll need the Adafruit Neopixel library, which
+can be found in the Library Manager inside the Arduino IDE, and
+[TwitterSearch](https://pypi.python.org/pypi/TwitterSearch/) Python library,
+which can be easily installed via pip.
+
+Additionally, you'll have to create your own "credentials.py" file with your
+Twitter application credential details; see
+[apps.twitter.com](apps.twitter.com) for more information on doing just that.
+
+Have fun, and if you make your own version, please send us pictures!
+