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  • Language
    JavaScript
  • License
    MIT License
  • Created over 10 years ago
  • Updated almost 8 years ago

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Repository Details

Intel Galileo & Intel Edison IO Plugin for Johnny-Five

Galileo/Edison/Joule-IO

Travis Build Status

Compatible with Intel's Galileo Generation 2 (no longer supports Galileo Generation 1), Edison (Mini and Arduino Board, SparkFun GPIO & Arduino Blocks, Xadow Board, DFRobot Romeo & IO Expansion) and Joule boards.

Galileo/Edison/Joule-IO is a Firmata.js-compatibility class for writing Node.js programs that run on the Intel Galileo, Intel Edison, or Intel Joule. This project was built at Bocoup

Getting Started

Galileo/Edison/Joule-IO scripts are run directly on the Galileo, Edison or Joule board. To get started, complete the appropriate setup instructions:

Installation

npm install galileo-io johnny-five

If you want, you can also use the alias modules:

For Edison:

npm install edison-io johnny-five

For Joule:

npm install joule-io johnny-five

But keep in mind that these modules only delegate directly back to this module.

Usage

This module is intended for use as an IO-Plugin for Johnny-Five.

Pin Identity and Access by Platform

Intel Joule (Carrier Board)

The Intel Joule + Carrier Breakout has two "Breakout connectors":

The usable pins and additional capabilities are shown here:

Pins may be addressed by either "Breakout Name" or "Pin Number":

Breakout Name Pin Number Capability
B1_1 1 GPIO
B1_2 2 GPIO
B1_4 4 GPIO
B1_5 5 GPIO
B1_6 6 GPIO
B1_7 7 GPIO, UART 0 TX
B1_8 8 GPIO
B1_10 10 GPIO
B1_11 11 GPIO, I2C 0 SDA
B1_12 12 GPIO
B1_13 13 GPIO, I2C 0 SCL
B1_14 14 GPIO
B1_15 15 GPIO, I2C 1 SDA
B1_16 16 GPIO
B1_17 17 GPIO, I2C 1 SCL
B1_18 18 GPIO
B1_19 19 GPIO, I2C 2 SDA
B1_20 20 GPIO
B1_21 21 GPIO, I2C 2 SCL
B1_22 22 GPIO, UART 1 TX
B1_24 24 GPIO, UART 1 RX
B1_26 26 GPIO, PWM 0
B1_28 28 GPIO, PWM 1
B1_30 30 GPIO, PWM 2
B1_32 32 GPIO, PWM 3
B1_35 35 GPIO
B2_11 51 GPIO
B2_13 53 GPIO
B2_15 55 GPIO
B2_17 57 GPIO
B2_19 59 GPIO
B2_21 61 GPIO
B2_22 62 GPIO
B2_23 63 GPIO
B2_24 64 GPIO
B2_25 65 GPIO
B2_26 66 GPIO
B2_27 67 GPIO
B2_28 68 GPIO, UART 0 RX
B2_29 69 GPIO
B2_30 70 GPIO
B2_31 71 GPIO, I2C 1 SDA
B2_32 72 GPIO
B2_33 73 GPIO, I2C 1 SCL
B2_34 74 GPIO, UART 1 TX
B2_35 75 GPIO, I2C 2 SDA
B2_36 76 GPIO, UART 1 RX
B2_37 77 GPIO, I2C 1 SCL
B2_39 79 GPIO
B2_40 80 GPIO
L0, GP100 100 LED100
L1, GP101 101 LED101
L2, GP102 102 LED102
L3, GP103 103 LED103

NOTES

  • LED100, LED101 and LED102 do not work correctly. This is a known issue in the platform itself, with work in progress to fix the issues.
  • I2C Bus 0 is used by default when no bus is explicitly provided.
  • I2C Bus 1 or 2 must be specified explicitly by providing a bus: ... property to the instantiation options (see "BLINKM" example below).

Basic Example:

npm install joule-io johnny-five
var five = require("johnny-five");
var Joule = require("joule-io");
var board = new five.Board({
  io: new Joule()
});

board.on("ready", function() {
  var led = new five.Led(103);
  led.blink(500);
});
var five = require("johnny-five");
var Joule = require("joule-io");
var board = new five.Board({
  io: new Joule()
});

board.on("ready", function() {
  var rgb = new five.Led.RGB({
    // Specifying an alternate bus: 
    bus: 1,
    controller: "BLINKM",
  });

  rgb.color("red");
});

Intel Edison Arduino

The Intel Edison + Arduino Breakout has a pin-out form similar to an Arduino Uno. Use the pin numbers as printed on the board, eg. 3, 13, or "A0".

Example:

npm install edison-io johnny-five
var five = require("johnny-five");
var Edison = require("edison-io");
var board = new five.Board({
  io: new Edison()
});

board.on("ready", function() {
  var led = new five.Led(13);
  led.blink(500);
});

Intel Edison Mini Breakout

The Intel Edison + Mini Breakout has a dense pin-out form comprised of four rows, J17, J18, and J19, J20. Each pin is numbered, left-to-right, from 14 to 1 (if looking from the back). Use the row and column name ("J17-1"), or the corresponding GPIO ("GP182"), or pin number 0, to interact with that pin. (Note: "J17-1", "GP182" and 0 refer to the same pin). See the table of valid pins below to determine corresponding Pin names and numbers. *

Connection to bus 1:

I2C-1-SDA I2C-1-SCL
J17-8 J18-6

Example:

npm install edison-io johnny-five
var five = require("johnny-five");
var Edison = require("edison-io");
var board = new five.Board({
  io: new Edison()
});

board.on("ready", function() {
  var led = new five.Led("J17-1");
  /*
    Same as: 

    var led = new five.Led(0);
    var led = new five.Led("GP182");
   */
  led.blink(500);
});

SparkFun Edison GPIO Block

The SparkFun Edison GPIO Block has two columns of pins. Use the GPIO name printed on the board ("GP44"), or the corresponding row and column name ("J19-4"), or pin number (31), to interact with that pin. (Note: "J19-4", "GP44" and 31 refer to the same pin). See the table of valid pins below to determine corresponding Pin names and numbers. *

Example:

npm install edison-io johnny-five
var five = require("johnny-five");
var Edison = require("edison-io");
var board = new five.Board({
  io: new Edison()
});

board.on("ready", function() {
  var led = new five.Led("GP44");
  /*
    Same as: 

    var led = new five.Led(31);
    var led = new five.Led("J19-4");
   */
  led.blink(500);
});

SparkFun Edison Arduino Block

The SparkFun Edison Arduino Block connects to the Edison via Serial1, or /dev/ttyMFD1. This means that a user must upload StandardFirmata via FTDI programmer. Johnny-Five does not use Galileo/Edison/Joule-IO to communicate with the hardware on this block, instead it communicates via the serial connection, using its default Firmata.js (this is installed by Johnny-Five automattically. The port name must be specified:

// This code runs on the Edison, communicating with the 
// SparkFun Arduino Block via Serial1 (/dev/ttyMFD1)
var five = require("johnny-five");
var board = new five.Board({
  port: "/dev/ttyMFD1"
});

board.on("ready", function() {
  var led = new five.Led(13);
  led.blink(500);
});

SparkFun Edison I2C Block

Galileo/Edison/Joule-IO/Edison-IO will automatically connect to bus 1, which is the bus used by this block.

SparkFun Edison 9DOF Block

Galileo/Edison/Joule-IO/Edison-IO will automatically connect to bus 1, which is the bus used by this block.

Edison Mini Pin Mapping Table *

Pin Number Physical Pin Edison Pin
0 J17-1 GP182
4 J17-5 GP135
6 J17-7 GP27
7 J17-8 GP20
8 J17-9 GP28
9 J17-10 GP111
10 J17-11 GP109
11 J17-12 GP115
13 J17-14 GP128
14 J18-1 GP13
15 J18-2 GP165
19 J18-6 GP19
20 J18-7 GP12
21 J18-8 GP183
23 J18-10 GP110
24 J18-11 GP114
25 J18-12 GP129
26 J18-13 GP130
31 J19-4 GP44
32 J19-5 GP46
33 J19-6 GP48
35 J19-8 GP131
36 J19-9 GP14
37 J19-10 GP40
38 J19-11 GP43
39 J19-12 GP77
40 J19-13 GP82
41 J19-14 GP83
45 J20-4 GP45
46 J20-5 GP47
47 J20-6 GP49
48 J20-7 GP15
49 J20-8 GP84
50 J20-9 GP42
51 J20-10 GP41
52 J20-11 GP78
53 J20-12 GP79
54 J20-13 GP80
55 J20-14 GP81

Intel Galileo Gen 2

Or Gen 1 if you're a glutton for punishment.

The Intel Galileo Gen 2 has a pin-out form similar to an Arduino Uno. Use the pin numbers as printed on the board, eg. 3, 13, or "A0".

Example:

var five = require("johnny-five");
var Galileo = require("galileo-io");
var board = new five.Board({
  io: new Galileo()
});

board.on("ready", function() {
  var led = new five.Led(13);
  led.blink(500);
});

Blink an Led

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);
});

Johnny-Five IO Plugin

Galileo/Edison/Joule-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.

npm install edison-io johnny-five

Example:

var five = require("johnny-five");
var Edison = require("edison-io");
var board = new five.Board({
  io: new Edison()
});

Specify An I2C Bus

Galileo/Edison/Joule-IO will do it's best to detect the correct I2C bus to use for a given expansion board, however the process is not infallible. To specify an I2C bus:

// If the i2c bus is 1 (`/dev/i2c-1`)
var board = new Galileo({
  i2c: {
    bus: 1
  }
});

Or...

var board = new Edison({
  i2c: {
    bus: 1
  }
});

Xadow Board

Expansion boards can also be initialized with a built-in configuration object, that contains the correct I2C bus for that board:

npm install edison-io johnny-five

Example:

var five = require("johnny-five");
var Edison = require("edison-io");
var board = new five.Board({
  io: new Edison(Edison.Boards.Xadow)
});

Or

var five = require("johnny-five");
var Galileo = require("galileo-io");
var board = new five.Board({
  io: new Galileo(Galileo.Boards.Xadow)
});

Additional expansion board configurations will be added as support is implemented

API

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 0-180Β° 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);
});

License

See LICENSE file.

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