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Code Examples & Coding Styles

1. Create your devices 

Device led1 = new Device(1, DeviceType.DIGITAL);
Device led2 = new Device(2, DeviceType.DIGITAL);
Device led3 = new Device(3, DeviceType.DIGITAL);
Sensor btn1 = new Sensor(4, DeviceType.DIGITAL);
Sensor btn2 = new Sensor(5, DeviceType.DIGITAL);
// call addDevice(ledX) on each... 

// setup connection with arduino/hardware
addOutput(Connections.out.usb()); // Connect to first USB port available
addOutput(Connections.out.bluetooth("001303141907"));
 
// Configure a Rest interface for receiving commands over HTTP
addInput(Connections.in.rest(8181));
 
connect(); // Connects all configured connections

while(true){
	led1.on();
	Thread.sleep(500);
	led1.off();
	Thread.sleep(500);
}

var deviceID = 1;
var value = 1; // can be a value of a input or method param
$.ajax({
	url: "http://localhost:8181/device/" + deviceID + "/value/" + value
	}).then(function (data) {
    var	response= JSON.stringify(data);
});

#include <OpenDevice.h>

DeviceConnection deviceConnection(Serial);

void setup(){
  
  OpenDevice::addDevice(RED_LED, Device::DIGITAL);   // ID:1
  OpenDevice::addDevice(GREEN_LED, Device::DIGITAL); // ID:2
  OpenDevice::addDevice(BLUE_LED, Device::DIGITAL);  // ID:3
  OpenDevice::addSensor(PUSH1, Device::DIGITAL); // ID:4
  OpenDevice::addSensor(PUSH2, Device::DIGITAL); // ID:5
			
  OpenDevice::begin(deviceConnection);			
}
void loop(){
  OpenDevice::loop();
}

Communications & Protocols

You can communicate with OpenDevice Middleware (Cloud and Local Services) using a variety of protocols:

• HTTP (REST)

• Sockets/Websocket

• MQTT (In progress)

You can communicate with devices using a variety of protocols via:

• USB

• Ethernet

• WiFi

• Bluetooth

Overview

• Devices: Is an abstraction of a physical device, which may be a lamp, socket, sensor, robot, or even a logical device. These devices are managed and controlled by a hardware like Arduino, Raspberry and others (see list) or can be built in an embedded own equipment, this is the proposal of the internet of things. Communication with other components of the platform is done using a binary protocol that is implemented in firmware written in "C / C ++" and can be ported to other platforms.

• Binary Protocol: Used in communication between Device and Middleware/Clients. Can be:

  • Usb, Ethernet, Wifi, Bluetooth

• Clients: Any device that can make HTTP requests: PC, Mobile, Tablet or any device with a browser. According to the "client" you will decide which API to be used. More details are explained in the session: Components > Clients APIs

• Clients Protocol: Rest API, WebSocket API. (Using JSON)

• Local Server (Middleware): Any computer running JVM: PC, Raspberry, Android(not tested)

Requirements

Before using OpenDevice you will need as a minimum a Java Development Kit (JDK) installed version 1.6 or above. Download the appropriate JDK for your operating system, run the installer, and then set up an environment variable calledJAVA_HOME pointing to the location of this installation.

 <dependencies>
        <dependency>
            <groupId>br.com.criativasoft.opendevice</groupId>
            <artifactId>opendevice-core</artifactId> 
            <version>[0.1.2-SNAPSHOT,)</version> 
        </dependency>
</dependencies>

	<repositories>
		<repository>
			<id>oss.sonatype.org</id>
			<url>https://oss.sonatype.org/content/repositories/releases</url>
		</repository>
		<repository>
			<id>oss.sonatype.org-snapshot</id>
			<url>https://oss.sonatype.org/content/repositories/snapshots</url>
		</repository>
	</repositories>

dependencies {
  compile('br.com.criativasoft.opendevice:opendevice-core:${opendevice.version}') { 
    transitive = false
  }
}

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