Arduino uno User Manual

Copy the API key, the API secret, the access token, and the access token
secret. You’ll need them in the next section, when we Tweet messages using
Processing.
Tweeting Messages with Processing
Processing doesn’t have Twitter support, but in Processing programs we have
direct access to Java libraries, and you can find several good Twitter libraries
for Java. One of them is Twitter4J.
5
We’ll use it because it’s very mature and
has excellent OAuth support.
Download Twitter4J from its website
6
and unpack it to a temporary folder.
Depending on the version you’ve downloaded, you’ll find a file named twitter4j-
core-x.y.z.jar or twitter4j-core-x.y.z-SNAPSHOT.jar in the folder. Open the Processing
IDE, create a new sketch, and then drag and drop the jar file to the IDE. (The
5. http://twitter4j.org/
6. http://twitter4j.org/en/index.html#download
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Arduino uno Specifications

General

Form factor	Arduino
Certification	RoHS, FC, CE
Processor model	-
Processor frequency	- MHz
Microcontroller model	ATmega328
Microcontroller frequency	16 MHz
DC input voltage	7-12 V
Operating voltage	5 V
DC current per I/O pin	40 mA
Flash memory	0.032 MB
Maximum internal memory	- GB
SRAM (Static Random Access Memory)	2 KB
EEPROM (Electrically Erasable Programmable Read-Only Memory)	1 KB
Wi-Fi	No
Number of analog I/O pins	6
Number of digital I/O pins	14

Weight and Dimensions

Board dimensions	53.4 x 68.6 mm