Arduino - Reference

ArduinoBuy | Download | Getting Started | Learning | Reference | Hardware | FAQ Blog | Forum | Playground Reference Language (extended) | Libraries | Comparison | BoardLanguage ReferenceSee the extended Reference for more advanced features of the Arduino languages and the libraries page for interfacingwith particular types of programs can be divided in three main parts: structure, values (variables and constants), and functions. The Arduinolanguage is based on C/C++.StructureAn Arduino program run in two parts:void setup()void loop()setup() is preparation, and loop() is execution. In the setupsection, always at the top of your program, you would setpinModes, initialize serial communication, etc.

Digital Ground (light green) Digital Pins 2-13 (green) Digital Pins 0-1/Serial In/Out - TX/RX (dark green) - These pins cannot be used for digital i/o (digitalRead and digitalWrite) if you are also using serial communication (e.g. Serial.begin). Reset Button - S1 (dark blue) In-circuit Serial Programmer (blue-green) Analog In Pins 0-5 (light blue)

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