Galileo-IO is compatible with Intel's Galileo Generation 1, Galileo Generation 2 and Edison boards (Mini and Arduino Board).
Galileo-IO is a Firmata.js-compatibility class for writing Node.js programs that run on the Intel Galileo or the Intel Edison. This project was built at Bocoup
As of 0.7.0, only the IoTKit image is supported
Galileo-IO scripts are run directly from the Galileo or Edison board. To get started, complete the appropriate setup instructions:
npm install galileo-io
or
npm install johnny-five
This module can be used as an IO plugin for Johnny-Five.
The "Hello World" of microcontroller programming:
(attach an LED on pin 9)
var Galileo = require("galileo-io");
var board = new Galileo();
board.on("ready", function() {
var byte = 0;
this.pinMode(9, this.MODES.OUTPUT);
setInterval(function() {
board.digitalWrite(9, (byte ^= 1));
}, 500);
});Galileo-IO is the default IO layer for Johnny-Five programs that are run on a Galileo or Edison board.
Note: On the Edison, you should require johnny-five first, followed by galileo-io. Otherwise you'll get a segmentation fault.
Example:
var five = require("johnny-five");
var Edison = require("galileo-io");
var board = new five.Board({
io: new Edison()
});digitalWrite(pin, 1|0)
Sets the pin to 1 or 0, which either connects it to 5V (the maximum voltage of the system) or to GND (ground).
Example:
// This will turn on the pin
board.digitalWrite(9, 1);analogWrite(pin, value)
Sets the pin to a value between 0 and 255, where 0 is the same as LOW and 255 is the same as HIGH. This is sort of like sending a voltage between 0 and 5V, but since this is a digital system, it uses a mechanism called Pulse Width Modulation, or PWM. You could use analogWrite to dim an LED, as an example.
Example:
// Crank an LED to full brightness
board.analogWrite(9, 255);servoWrite(pin, value)
Set the pin to a value between 0-180° to move the servo's horn to the corresponding position.
Example:
board.servoWrite(9, 180);digitalRead(pin, handler) Setup a continuous read handler for specific digital pin.
This will read the digital value of a pin, which can be read as either HIGH or LOW. If you were to connect the pin to 5V, it would read HIGH (1); if you connect it to GND, it would read LOW (0). Anywhere in between, it’ll probably read whichever one it’s closer to, but it gets dicey in the middle.
Example:
// Log all the readings for 9
board.digitalRead(9, function(data) {
console.log(data);
});analogRead(pin, handler) Setup a continuous read handler for specific analog pin.
This will read the analog value of a pin, which is a value from 0 to 4095, where 0 is LOW (GND) and 4095 is HIGH (5V). All of the analog pins (A0 to A5) can handle this. analogRead is great for reading data from sensors.
Example:
// Log all the readings for A1
board.analogRead("A1", function(data) {
console.log(data);
});See LICENSE file.