This document discusses using Nodebot to control an Arduino board with JavaScript. It introduces the IDEs and libraries needed like Arduino, Sublime Text, Stino plugin and Node.js. Examples shown include making an LED blink, creating a traffic light, playing music with a piezo buzzer, reading a push button, potentiometer, and temperature sensor. The goal is to explore different ways to control the Arduino using tools that increase productivity and leverage what Arduino provides through JavaScript and electronics projects.

1. Nodebot:
Arduino + Javascript
Desiree Santos

2. @desisant
•
Consultora ThoughtWorks Brasil
•
Open hardware desde 2009
•
Hobby #1 objetos interativos
•
Coordena (arduinrio)
•
Modera arduinoBrasil
•
Hackerspace

3. @desisant
Agenda
•
IDE Sublime + Stino
•
IDE Arduino
•
Instalar nodejs
•
Download john-Five
Desenvolvimento:
100% prática:
•
Javascript
•
Eletrônica
•
Analógico
•
Digital
Referência: node-ardx.org

4. @desisant
Expectativa
Explorar meios diferentes para controlar o arduino
Utilizando ferramentas que aumentam a nossa produtividade
Extrair o melhor que o arduino proporciona
Alavancar aprendizado com JS + arduino para desenvolver projetos
Javascript é meio e não fm, não é ofcina de javascript
Sim
Não
Não se preocupe, haverá suporte para todos fcarem na mesma página

5. @desisant
Arduino is an open-source electronics
platform based on easy-to-use
hardware and software.
It's intended for anyone
making interactive projects.
By Massimo Banzi

6. @desisant
Arte de controlar arduino utilizando a linguaguem Javascript

7. @desisant
Montar o ambiente:
1) Baixar IDE arduino
→ www.arduino.cc/ → menu Download
2) Sublime Text → http://www.sublimetext.com/2
3) Instalar plugin STINO no sublime text
→ https://github.com/Robot-Will/Stino
4) Instalar nodejs https://nodejs.org/

8. @desisant
Blink – Piscar Led
2 pin (digital)
5mm LED
330 ohm resistor (orange-orange-brown)
jumper wires

9. @desisant
var five = require("johnny-five");
var myBoard, myLed;
myBoard = new five.Board();
myBoard.on("ready", function() {
myLed = new five.Led(13);
myLed.strobe( 1000 );
// make myLED available as "led" in REPL
this.repl.inject({
led: myLed
});
// try "on", "off", "toggle", "strobe", "stop" (stops strobing)
});
blink.js

10. @desisant
Semáforo
3 pin (digital)
5mm LED
330 ohm resistor (orange-orange-brown)
jumper wires

11. @desisant
var five = require("johnny-five");
var board, leds=[], ledPins = [2,3,4,5,6,7,8,9];
board = new five.Board();
board.on("ready", function() {
// initialize LEDs using a for loop
for (var i = 0; i < ledPins.length; i++){
var myLed = new five.Led(ledPins[i]);
leds.push(myLed);
}
function allOn(){
for (var i = 0; i < leds.length; i++) {
leds[i].on();
}
}
function allOff(){
for (var i = 0; i < leds.length; i++) {
leds[i].off();
}
}
function oneAfterAnother() {
var delay = 1;
board.counter = 0;
for (var i = 0; i < leds.length; i++) {
var led = leds[i];
board.wait(delay,function(){
console.log(this.counter + " on");
leds[this.counter].on();
});
board.wait(delay + 200,function(){
console.log(this.counter + " off");
leds[this.counter].off();
this.counter = (this.counter + 1) % leds.length;
});
delay += 500;
}
}
// allOn();
// board.wait(1000,allOff);
oneAfterAnother();
semaforo.js

12. @desisant
•
2 pin header x 4
•
Piezo element
•
jumper wires
Música

13. @desisant
var five = require("johnny-five");
five.Board().on("ready", function() {
var piezo = new five.Piezo(9);
var val = 0;
this.loop(200, function() {
if (val ^= 1) {
// Play note a4 for 1/5 second
piezo.frequency(five.Piezo.Notes["a4"], 200);
}
});
});
Music.js

14. @desisant
• 2 pin header x 4
• 5mm LED
• Pushbutton x 2
• 330 ohm resistor (orange-orange-brown)
• 10k Ohm Resistor (brown-black-orange) x 2
• jumper wires
Push Button

15. @desisant
var five = require("johnny-five"),
onButton, offButton, led;
five.Board().on("ready", function() {
onButton = new five.Button(2);
led = new five.Led(13);
onButton.on("down", function(value){
led.on();
});
});
Button.js

16. @desisant
• 2 pin header x 4
• Potentiometer 10k ohm
• 5mm LED
• 330 ohm resistor (orange-orange-brown)
• jumper wires
Potenciômetro

17. @desisant
var five = require("johnny-five"),
board, myPotentiometer;
board = new five.Board();
board.on("ready", function() {
myPotentiometer = new five.Sensor({
pin: "A0",
freq: 250
});
myLed = new five.Led(9);
myPotentiometer.on("read", function() {
var rawValue = this.raw;
myLed.brightness(Math.floor(rawValue / 4));
});
});
Potenciometro.js

18. @desisant
• 2 pin header x 4
• TMP36 Temperature sensor
• jumper wires
Temperatura

19. @desisant
var five = require("johnny-five");
five.Board().on("ready", function(){
var tempSensor = new five.Sensor("A0");
tempSensor.on("read", function(err, value){
var cel = (100 * (value / 1000) - 50).toFixed(2);
console.log("temp is " + cel);
});
});
Temperatura.js

20. @desisant
@desisant
desisantos.wordpress.com
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