Nodebot: Arte de controlar arduino com javascript

Nodebot:
Arduino + Javascript
Desiree Santos

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

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

@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

@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

@desisant
Arte de controlar arduino utilizando a linguaguem Javascript

@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/

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

@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

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

@desisant
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(){
leds[i].off();
}
}
function oneAfterAnother() {
var delay = 1;
board.counter = 0;
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

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

@desisant
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

@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

@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

@desisant
• Potentiometer 10k ohm
• 5mm LED
• 330 ohm resistor (orange-orange-brown)
• jumper wires
Potenciômetro

@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

@desisant
• TMP36 Temperature sensor
• jumper wires
Temperatura

@desisant
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

@desisant
@desisant
desisantos.wordpress.com
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