Internet of Things with Intel EdisonCylonJS

Pierre Colletwww.Intel-Software-Academic-Program.com

paul.guermonprez@intel.comIntel Software

2014-10-14

CylonJS ?Why ?You like NodeJS, but don’t like calling external shell scripts ?There’s a clean solution : CylonJS !

How ?Make sure you have the last version of the libmraa :

https://github.com/intel-iot-devkit/mraa

Install the NodeJS module :npm install cylon-intel-iot

Examples

Blink a LEDBlink a LED on pin #13

var Cylon = require('cylon');

Cylon.robot({ connection: { name: 'edison', adaptor: 'intel-iot' }, device: {name: 'led', driver: 'led', pin: 13 },

work: function(my) { every((1).second(), function() { my.led.toggle(); }); }}).start();

Control a ServoControl of a Servo

var Cylon = require('cylon'); Cylon.robot({ connection: { name: 'edison', adaptor: 'intel-iot' }, device: {name: 'servo', driver: 'servo', pin: 3 }, work: function(my) { var angle = 45 ; my.servo.angle(angle); every((1).second(), function() { angle = angle + 45 ; if (angle > 135) { angle = 45 } my.servo.angle(angle); }); } }).start();

This code make a servo motor switch every second from 45 to 90 to 135 degree.This servo of this exemple is plugged on the pin 3 of the Edison board.

Analog Read

work: function(my) { var analogValue = 0; every((1).second(), function() { analogValue = my.sensor.analogRead(); console.log('Analog value => ', analogValue); }); my.sensor.on('lowerLimit', function(val) { console.log("Lower limit reached!"); console.log('Analog value => ', val); }); my.sensor.on('upperLimit', function(val) { console.log("Upper limit reached!"); console.log('Analog value => ', val); }); }}).start();

Analog Read on A0

Cylon.robot({connection: { name: 'Edison', adaptor: 'intel-iot' }, device: { name: 'sensor', driver: 'analogSensor', pin: 0, lowerLimit: 100, upperLimit: 900 },

Conclusion

CylonJS is greatNodeJS / CylonJSNodeJS programming style is perfectly adapted to IoT. That’s why it is so popular.But you need a good library to interact with the GPIO : CylonJS.

CylonJS is great and available today. It targets robotics but can be used for anything IoT related.

Keep a eye on future NodeJS modules. You may see another one taking advantages of unique Edison features. But we propose you use CylonJS today.

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