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December 6, 2010 AT 1:24 pm

Twitter Drumbot – Twittering drum!

Twitdrum

Twitter Drumbot – Twittering drum!

It’s powered by an Arduino Diecimila with an Adafruit Ethernet shield. The Arduino reads an online PHP script every five seconds. The PHP script uses the Twitter search API to search Twitter for the desired word(s), and finds the latest matching tweet. It determines if this tweet has been found previously, or if it’s new. The result is sent back to the Arduino. An LED flashes every time a successful connection is made.

If the tweet is new, the Arduino plays four bars of samba-style rhythms. At the start of each bar, each instrument chooses randomly from a set of pre-written patterns, so there are many possible combinations.


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