Hello!
I'm starting with Cylon, I'm testing with arduino and mpu6050, but I am getting this error below. Any idea?

C: \ Users \ Marcelo \ node_modules \ cylon-i2c \ lib \ mpu6050.js: 84
var x = makeSignedInteger (data [0], data [1]),
^
TypeError: Can not read property '0 'of null
at C: \ Users \ Marcelo \ node_modules \ cylon-i2c \ lib \ mpu6050.js: 84:36
at null (C:. \ Users \ Marcelo \ node_modules \ cylon-Firmata \ lib \ Firmata
. js: 103:5)
at g (Events.js: 180:16)
emit at (Events.js: 95:17)
at Object.SYSEX_RESPONSE (anonymous function) the 119
at SerialPort (C:. \ Users \ Marcelo \ node_modules \ cylon-Firmata \ node_
modules \ Firmata \ lib \ firmata.js: 444:59)
at SerialPort.emit (Events.js: 95:17)
Object.module.exports.raw at the parser
at SerialPort.options.dataCallback (C: \ Users \ Marcelo \ node_modules \ cylon-firm
ata \ node_modules \ Firmata \ node_modules \ serialport \ serialport.js: 145:15)

I'm sorry if you're making a mistake in the form to request help for this error.

Moved this from cylon to cylon-i2c, @MarceloTomaz @solojavier

I am having issues running the i2c lcd example on my Arduino Yùn. (https://cylonjs.com/documentation/drivers/lcd/)
I have a SunFounder I2C LCD1602. I am using OpenWrt. I setup everything on the Yún following the instructions on the CylonJs website.
I am guessing the problem is with the cylon I2C driver library since other Cylon js examples work fine.
Problem:
When I do the wiring of the example, the backlight of the lcd is bright and stable but when I start the script the text shows fine but the backlight starts to flicker. I tried both with and without the 4.7k resistors even though they shouldn't be necessary since the arduino has integrated pull-up resistors.

Any help would be really appreciated!! Thanks

I tried using two i2c devices but i get event errors with this setup.

    devices: {
        pca: { driver: 'pca9685' },
        gyro: { driver: 'mpu6050' }
    },

The error is

events.js:141
      throw er; // Unhandled 'error' event
      ^

Error: ENXIO, No such device or address
    at Error (native)

I have to comment out one device for it to work. I wasn't able to pin point the exact point in the code(cylon core or i2c driver) that does the blocking but if anyone can please point it out and i'll work on it. @deadprogram. There might be a callback that gets executed and closes out i2c after the first device.

I couldn't make the BMP180 example run. I'm using the BMP version with only 4 pin and an RPi3, though I'm guessing those two should not make a difference.
I was using the example code found in cylon website, and after compiling there were no measurements at all. Temp at 0 and pressure at infinite. Later, I added the bmp180.start before taking measurements and I started seeing some rawTemp numbers, but they just didn't make sense.

Hello,

I've bought a kit with some components, and in this kit there was a 1602 LCD screen (16*2) : kit here

After trying this in my code :

lcdScreen: {driver: 'lcd'}

and this :

my.lcdScreen.print("test");

It doesn't work at all.

So I've tried using this LCD Library, and with this code it worked.

So I just wanted to know if I'm doing something bad, or if it's not compatible at all.

Thanks

Here is the issue:
Take a look at this project structure:

as always package.json has all dep

{
"dependencies": {
    "cylon": "^1.3.0",
    "cylon-firmata": "^0.24.0",
    "cylon-gpio": "^0.29.0",
    "cylon-i2c": "^0.26.1"
  }
}

e.g. I install dependencies.
Than i want to install my custom driver for now all custom is in folder
drivers

here is the index.js
/drivers/ultrasonic/lib/ultrasonic.js
and the driver

here is the actual program that i am running

so i made following steps:

1. $ npm i
   2)$ npm i ./drivers/ultrasonic
   3)$ node src/js/ultrasonic

2. and i get Cannot find the 'cylon-ultrasonic' module.
   This problem might be fixed by installing it with 'npm install cylon-ultrasonic' and trying again.

if i add my driver here: .\node_modules\cylon-i2c\lib\ultrasonic.js

and add it to the index.js file .\node_modules\cylon-i2c\index.js

var Drivers = {
  // ...
  "ultrasonic": require("./lib/ultrasonic")
};

• the problem is became solved when we add it to the node_modules folder

So for now i has resolved that by forking i2c and link to my fork in the package.json but i need to update fork manually all the time is there any better solution for that?

Thanks for the module, I have used it successfully with a Yun with MPU6050, but having a problem getting the gyro example to work.

My setup is an Intel Edison, LSM9DS0 (https://www.sparkfun.com/products/13033) and the cylon-intel-iot as the adapter.

i2c seems to have correct addresses on the edison for the gyro and accel/mag

i2cdetect -y -r 1

 0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f

00: -- -- -- -- -- -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- -- -- -- -- -- 1d -- --
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- -- -- -- 6b -- -- -- --
70: -- -- -- -- -- -- -- --

I modified the gyro example as so

"use strict";

var Cylon = require("cylon");

Cylon
.robot()
.connection("edison", { adaptor: "intel-iot"})
.device("gyro", { driver: "lsm9ds0g" })

.on("ready", function(bot) {
setInterval(function() {
bot.gyro.getGyro(function(err, data) {
console.log(data);
});
}, 1000);
});

Cylon.start();

But the output is not correct, and doesn't change in relation to the movement of the device.

I, [2015-02-12T23:58:31.435Z] INFO -- : Initializing connections.
I, [2015-02-12T23:58:31.450Z] INFO -- : Initializing devices.
I, [2015-02-12T23:58:31.725Z] INFO -- : Starting connections.
I, [2015-02-12T23:58:31.730Z] INFO -- : Starting devices.
I, [2015-02-12T23:58:31.741Z] INFO -- : Working.
{ x: 8224, y: 8224, z: -515 }
{ x: 8224, y: 8224, z: -515 }
{ x: 8224, y: 8224, z: 8297 }
{ x: 8224, y: 8224, z: 8297 }
{ x: 8224, y: 8224, z: 8297 }
{ x: 8224, y: 8224, z: 8297 }
{ x: 8224, y: 8224, z: 8297 }
{ x: 8224, y: 8224, z: 8297 }
{ x: 8224, y: 8224, z: 8297 }

The same output for similar changes to demo for getAccel.

I appreciate any advice on approaches I might take to identify the issue and/or get this to work? I have limited experience with i2c on linux, so may be a basic mistake.

Thanks much!

Hello, I wrote a time ago this driver https://github.com/lazychino/ds1337js, I think maybe it could be added to here. I created to use the alarms on this RTC to turn on a beaglebone.

Currently I'm working on a drone navigation project using AR_Drone2 with Arduino Yun.

Basic setup to install cylon.js on Arduino Yun was based on this page with @edgarsilva 's help.

hybridgroup/cylon#212 (comment)

And now I'm trying to use the compass module (hmc6352) to get the heading of my drone but when i run a simple code

var Cylon = require('cylon');

Cylon.robot(
{connection:
{name: 'arduino', adaptor: 'firmata', port: '/dev/ttyATH0'},

device:
{name: 'hmc6352', driver: 'hmc6352'},

work: function(my) {
every((1).second(), function() {
my.hmc6352.heading(function(data) {
Logger.info("heading: " + data);
});
});
}}
).start();

I get this error

/root/drone/node_modules/cylon/lib/utils.js:124
return target[method].apply(target, arguments);
^
TypeError: Cannot call method 'apply' of undefined
at Adaptor.base.(anonymous function) as i2cConfig
at Connection.base.(anonymous function) as i2cConfig
at Hmc6352.start (/root/drone/node_modules/cylon-i2c/lib/hmc6352.js:26:19)
at Device.start (/root/drone/node_modules/cylon/lib/device.js:60:22)
at /root/drone/node_modules/cylon/node_modules/async/lib/async.js:568:25
at /root/drone/node_modules/cylon/node_modules/async/lib/async.js:118:13
at Array.forEach (native)
at _each (/root/drone/node_modules/cylon/node_modules/async/lib/async.js:39:24)
at Object.async.each (/root/drone/node_modules/cylon/node_modules/async/lib/async.js:117:9)
at _parallel (/root/drone/node_modules/cylon/node_modules/async/lib/async.js:567:20)

What is wrong with this code?
(I connected the compass module's sda scl pins to Arduino Yun's sda scl pins)

Is there no way to use this module for a device not part of the driver list ?

I have a TI fuel gauge (BQ-27441), which is a battery sensor that reads battery information like current, voltage , temp etc. of the battery. I have connected it to my ras-pi, via I2C.

Any way I can leverage this module for use with that ?

Please add support for Bosch BME280