Introduction to Arduino

Apr 6, 2013Download as pptx, pdf

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The document provides an introduction to Arduino, including: - What an Arduino is and its main components like a microprocessor, digital pins for inputs and outputs, and analog pins. - How to program an Arduino using a processing "sketch" with setup, loop, and other functions like digitalWrite, analogWrite, and delay. - Examples of inputs like sensors and outputs like LEDs. - An overview of the Arduino programming language and block-based programming with ArduBlocks. - Information on upcoming demonstrations of Arduino projects and links for further learning resources.

Introduction to Arduino

Kids & Technology Meetup
April 6, 2013
Washington, DC

What is the Arduino?
• A microcontroller
• Hardware + software
• You can program it, make projects with it
Inputs/Sensors
• Light
• Motion
• GPS
Arduino
Outputs: Make things happen
• Light up LEDs
Your program • Move wheels
(sketch) • Tweet

2

Most read

Raffle
• We have a few prizes to give away
– Arduinos
– Breadboards
– Patches

14

Questions?
• Feel free to contact us
– John Dukovich – twitter: @JohnDukovich
– Hugo Estrada – Google+
– Phil Shapiro – twitter: @PhilShapiro

• Stay in touch with the MeetUp:
– http://www.meetup.com/Kids-and-Technology/

15

The Arduino’s Parts
Digital Pins (0 – 13) inputs & outputs

USB
- sketch
- power

Micro-
processor

External
Power Analog
(battery) Inputs
Power (0-5)
3
Sockets

Some Components

LEDs – light emitting
diodes

Resistors
Breadboard 4

Programming
3 main
sketch
areas
A Processing “Sketch”

Variables

Setup
– runs once

Loop
– main
program that
repeats

5

Basic Processing Structure
// this is a comment - make notes to yourself and to others

int led = 13; // we will connect an LED to pin # 13 – and 13 is an integer
// end lines with semicolons

void setup () // place things here that need to be set up at the beginning
{ // curly braces { } define blocks of code

pinMode(led, OUTPUT); // digital pin 13 will be an output – OUTPUT is a key word
}

void loop() // main sketch code goes here. It will repeat until the board is turned off.
{
digitalWrite(led, HIGH); // turn the LED on (HIGH is the voltage level) – HIGH = key word
delay(1000); // wait for one second
digitalWrite(led, LOW); // turn the LED off by making the voltage LOW – LOW = key word
delay(1000); // wait for one second
}
6

Processing Language Basic
Interactive Functions
pinMode(pin, mode): set a digital pin to input or output mode (INPUT or OUTPUT).

digitalRead(pin): returns the value of a digital pin, either LOW or HIGH

digitalWrite(pin, value): writes LOW or HIGH to a digital pin.

analogRead(pin): returns the value of an analog input (from 0 to 1023).

analogWrite(pin, value): writes an analog value (PWM wave) to a digital pin that
supports it (pins 3, 5, 6, 9, 10, and 11); value should be from 0 (always off) to 255
(always on).

delay(time in milliseconds): pauses the code for the amount of time in milliseconds
(1 second = 1000 milliseconds)

More terms, syntax, functions: http://arduino.cc/en/Reference/HomePage
7

ArduBlocks
• It is a tool to use block programming with
Arduino

Project Demonstrations
• We will demonstrate several projects
– Interactive game (Simon Says)
– ArduBlocks
– Light sensor input
– Arduino + Scratch
– Drawbot – a drawing robot

11

Videos of Other Projects for Inspiration
• LED cube:
– http://www.youtube.com/watch?v=GUcX41pokZY

• Turn signal cycling jacket:
– http://www.youtube.com/watch?v=ZtNEPkwCfxA

• Robot controlled by iPhone:
– http://www.youtube.com/watch?v=ZgMHxu6gS40

• Quadcopter:
– https://www.youtube.com/watch?v=eKWboJ0RJtQ

Search for other ideas!

12

Links
• Start here: http://arduino.cc/
• We have compiled links for:
– Project ideas – lists and videos
– How to program
– The videos of the demos projects
– Places to learn
• HacDC http://www.meetup.com/hac-dc/
• Nova Labs http://www.meetup.com/NOVA-Makers/
– Places to buy Arduinos and components

• All of these links will be posted at the Kids Tech Meetup
site (http://www.meetup.com/Kids-and-Technology/) and this public
EverNote notebook: https://www.evernote.com/pub/greenmoonart/arduino
13

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Introduction to Arduino

1. Introduction to Arduino Kids & Technology Meetup April 6, 2013 Washington, DC

2. What is the Arduino? • A microcontroller • Hardware + software • You can program it, make projects with it Inputs/Sensors • Light • Motion • GPS Arduino Outputs: Make things happen • Light up LEDs Your program • Move wheels (sketch) • Tweet 2

3. The Arduino’s Parts Digital Pins (0 – 13) inputs & outputs USB - sketch - power Micro- processor External Power Analog (battery) Inputs Power (0-5) 3 Sockets

4. Some Components LEDs – light emitting diodes Resistors Breadboard 4

5. Programming 3 main sketch areas A Processing “Sketch” Variables Setup – runs once Loop – main program that repeats 5

6. Basic Processing Structure // this is a comment - make notes to yourself and to others int led = 13; // we will connect an LED to pin # 13 – and 13 is an integer // end lines with semicolons void setup () // place things here that need to be set up at the beginning { // curly braces { } define blocks of code pinMode(led, OUTPUT); // digital pin 13 will be an output – OUTPUT is a key word } void loop() // main sketch code goes here. It will repeat until the board is turned off. { digitalWrite(led, HIGH); // turn the LED on (HIGH is the voltage level) – HIGH = key word delay(1000); // wait for one second digitalWrite(led, LOW); // turn the LED off by making the voltage LOW – LOW = key word delay(1000); // wait for one second } 6

7. Processing Language Basic Interactive Functions pinMode(pin, mode): set a digital pin to input or output mode (INPUT or OUTPUT). digitalRead(pin): returns the value of a digital pin, either LOW or HIGH digitalWrite(pin, value): writes LOW or HIGH to a digital pin. analogRead(pin): returns the value of an analog input (from 0 to 1023). analogWrite(pin, value): writes an analog value (PWM wave) to a digital pin that supports it (pins 3, 5, 6, 9, 10, and 11); value should be from 0 (always off) to 255 (always on). delay(time in milliseconds): pauses the code for the amount of time in milliseconds (1 second = 1000 milliseconds) More terms, syntax, functions: http://arduino.cc/en/Reference/HomePage 7

8. ArduBlocks • It is a tool to use block programming with Arduino

9. It is similar to Scratch

10. The classic blink script

11. Project Demonstrations • We will demonstrate several projects – Interactive game (Simon Says) – ArduBlocks – Light sensor input – Arduino + Scratch – Drawbot – a drawing robot 11

12. Videos of Other Projects for Inspiration • LED cube: – http://www.youtube.com/watch?v=GUcX41pokZY • Turn signal cycling jacket: – http://www.youtube.com/watch?v=ZtNEPkwCfxA • Robot controlled by iPhone: – http://www.youtube.com/watch?v=ZgMHxu6gS40 • Quadcopter: – https://www.youtube.com/watch?v=eKWboJ0RJtQ Search for other ideas! 12

13. Links • Start here: http://arduino.cc/ • We have compiled links for: – Project ideas – lists and videos – How to program – The videos of the demos projects – Places to learn • HacDC http://www.meetup.com/hac-dc/ • Nova Labs http://www.meetup.com/NOVA-Makers/ – Places to buy Arduinos and components • All of these links will be posted at the Kids Tech Meetup site (http://www.meetup.com/Kids-and-Technology/) and this public EverNote notebook: https://www.evernote.com/pub/greenmoonart/arduino 13

14. Raffle • We have a few prizes to give away – Arduinos – Breadboards – Patches 14

15. Questions? • Feel free to contact us – John Dukovich – twitter: @JohnDukovich – Hugo Estrada – Google+ – Phil Shapiro – twitter: @PhilShapiro • Stay in touch with the MeetUp: – http://www.meetup.com/Kids-and-Technology/ 15

Introduction to Arduino

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