Some Kind of User Group (SKUG)

Arduino Core Environment

What is Arduino?

Arduino Is…

• An open-source electronics prototyping platform

• Based on flexible, easy to use hardware and software

• Intended for students, designers, hobbyists, and others

• Able to receive input from sensors

• Able to send output to lights, motors, and other actuators

Why use Arduino?

• Inexpensive

• Cross-platform

• Simple programming environment

• Open source and extensible software

• Open source and extensible hardware

Basics

• Programming language is based on Wiring

• Development environment is based on Processing

• A program in Arduino is called a Sketch

• Two main functions that are part of every Sketch

• setup(): Called once when the Sketch starts

• loop(): Called over and over and is the main part of the Sketch

• Both functions must be present even if not needed

Microcontrollers

• Digital pins can be configured as inputs or outputs

• Pins default to input so no need to declare explicitly

• Pins configured as output can provide substantial current to other circuits

• Provides enough current to power an LED or other sensors

• Does not provide enough current to power motors or solenoids

Development

• Windows: Arduino IDE, Visual Studio plugin

• Linux, Mac OS X: Arduino IDE

• Bare Minimum of code for a sketch:

void setup() {// put your setup code here, to run once:}

void loop() {// put your main code here, to run repeatedly:}

Standard Libraries• EEPROM - reading and writing to "permanent" storage

• Ethernet - for connecting to the internet using the Arduino Ethernet Shield

• Firmata - for communicating with applications on the computer using a standard serial protocol.

• GSM - for connecting to a GSM/GRPS network with the GSM shield.

• LiquidCrystal - for controlling liquid crystal displays (LCDs)

• SD - for reading and writing SD cards

• Servo - for controlling servo motors

• SPI - for communicating with devices using the Serial Peripheral Interface (SPI) Bus

• SoftwareSerial - for serial communication on any digital pins.

• Stepper - for controlling stepper motors

• WiFi - for connecting to the internet using the Arduino WiFi shield

• Wire - Two Wire Interface (TWI/I2C) for sending and receiving data over a net of devices or sensors.

Connect Your Arduino

• Get an Arduino board and cable

• Download the Arduino IDE

• Connect the board via USB

• Install the drivers

• Launch the Arduino IDE

Upload Your Sketch

• Create new or open existing sketch

• Select your board

• Select your serial port

• Upload your sketch

Questions

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References

• Arduino Website: http://www.Arduino.cc

• Wikipedia: http://en.wikipedia.org/wiki/Arduino

• Wiring: http://wiring.org.co/

• Processing: http://www.processing.org/