Firmata protocol with Raspberry Pi and Arduino

Firmata is a protocol that is used to communicate with microcontrollers from any tablet/pc over the serial interface. There are implementations of this for other platforms too along with Arduino. You can find support for this if you are using any Arduino IDE released after 2008.Use of this protocol lets you access GPIO of Arduino from any host device natively without uploading the sketch each time you change the sketch. You can use Arduino as ADC for your Pi as it doesn’t have native ADC pins, you can also interface a whole lot of sensors by the additional GPIO that you will get after connecting the Arduino which eliminates uses of the port expander and ADC ICs to be interfaced with Pi.In this video, I have shown a basic example of blinking the onboard LED of Arduino from Raspberry Pi by using JAVA and for this, we are going to use the firmata4j library.

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Video:

Links:

Firmata4J Library: http://bit.ly/2xixy4K
Jar File of Library:http://bit.ly/2wTZ74C
(Dependency for Firmata4J) JSSC (Java Simple Serial Connector): http://bit.ly/2jm7wYU
(Dependency for Firmata4J) SLF4J API Module: http://bit.ly/2y38ehc

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Protocol Page: http://bit.ly/2wVyTyI
Protocol Details: http://bit.ly/2xiC6YP

Related Videos:

Java Application on Pi Playlist: http://bit.ly/2eB1O2K
IOT With Raspberry Pi: http://bit.ly/2rPEHq8

Code:

package in.weargenius.main;

import org.firmata4j.IODevice;
import org.firmata4j.Pin;
import org.firmata4j.firmata.FirmataDevice;

public class MainClass {
 public static void main(String args[]) throws Exception{
   IODevice device = new FirmataDevice("/dev/ttyACM0"); // construct the Firmata device instance using the name of a port
  // subscribe to events using device.addEventListener(...);
  // and/or device.getPin(n).addEventListener(...);
  device.start(); // initiate communication to the device
  device.ensureInitializationIsDone(); // wait for initialization is done
  // sending commands to the board
  Pin pin = device.getPin(13);
  
  pin.setMode(Pin.Mode.OUTPUT); 
  while(true){
    pin.setValue(1);
    Thread.sleep(1000);
    pin.setValue(0);
    Thread.sleep(1000);
  }
  
  //device.stop(); // stop communication to the device
 }
}

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