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
Galileo/Edison/Joule-IO scripts are run directly on the Galileo, Edison or Joule board. To get started, complete the appropriate setup instructions:
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.
This module is intended for use as an IO-Plugin for Johnny-Five.
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
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");
});
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);
});
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);
});
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);
});
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);
});
Galileo/Edison/Joule-IO/Edison-IO will automatically connect to bus 1, which is the bus used by this block.
Galileo/Edison/Joule-IO/Edison-IO will automatically connect to bus 1, which is the bus used by this block.
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 |
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);
});
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/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()
});
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
}
});
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
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.