Information Display System using WeMOS and MAX7219 | MAKE #3

Getting started with NodeJS | GPIO Access | Onion Omega 2

Getting started with PHP | GPIO Access | Server | Onion Omega 2

File Server (NAS) using Open Media Vault | In Detail | Raspberry Pi

Getting Started with Expansion Dock and Commandline Interface | Onion Omega

JAVA Applications on OPi Zero | Orange Pi

JAVA Applications on OPi Zero | Orange Pi

Install LUBUNTU OS on Orange Pi Zero | Orange Pi

PADI IOT Stamp | Getting Started | AT Commands with PC

BMP180 Interfacing with Pi in Detail | JAVA | Pi4J | Raspberry Pi

BMP180 Interfacing with Pi in Detail | JAVA | Pi4J | Raspberry Pi

DIN Mount Enclosure for Raspberry Pi

Checking out Nano Pi S2 | First Look

Sensing environmental Temperature and Pressure using BMP180 | I2C | Arduino

16x2 LCD using I2C | MCP23017| JAVA | Pi4J | Raspberry Pi

I2C Communication | Add more GPIO | JAVA | Pi4J | Raspberry Pi

Measure Distance using Ultrasonic Sensor | Pi4J | JAVA | Raspberry Pi

Measure Distance using Ultrasonic Sensor | Pi4J | JAVA | Raspberry Pi

Flash MicroPython firmware to ESP8266

Flash NodeMCU firmware to ESP8266

Thermocouple Interfacing usng MAX31855 | JAVA & Pi4J| Raspberry Pi

Send/Receive data using BLE and MBED | BBC Microbit

Fetching data from server | Arduino on ESP8266

Programming using C/C++ (Offline IDE Setup) | BBC Microbit

Programming ESP8266 using Arduino IDE | ESP8266

Connecting ESP8266 with Arduino | AT Commands

Custom Character Generator for MAX7219 based 8x8 LED Matrix | Geeky Way

In this video i will show you a custom character generator for MAX7219 based 8x8 LED matrix. The app is developed using JAVA. If you are interested in making some updates to it you can cjheckout my repository on github. All links are provided in video description.

Desktop app to share to social media | Geeky Way

Fedora 25 on Pi | Raspberry Pi

Finally Fedora 25 beta version is out with the support for Raspberry Pi 2/3. Why not to give it a try ? In this video let's check it out how it works

Making a controllable power outlet for Home Automation | Timelapse

Logic Level Sifter using 2N7000 | Electronics

Connecting ESP8266 with Raspberry PI | AT Commands

Raspbian Jessie | PIXEL | SEP-2016 Release | Explore

Benchtop Power Supply | Mod your SMPS | PART II

Getting Started with ESP8266 | Basic AT Commands

.

Smallest Arduino Dev. Board | Digispark AtTiny85 | Getting Started

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GIT : https://github.com/oksbwn

Read Analog Signals | MCP3208 | Raspberry Pi

​This video is all about connecting MCP3208 with Raspberry Pi and accessing it using JAVA.

----------------------------------------------------------------------

Repository : https://goo.gl/7NRe5n

Schematic : https://goo.gl/kbkhj4

Code : https://goo.gl/J0BT8p

Compiled JAVA App: https://goo.gl/pvb6Sp

Lib :  https://goo.gl/NyI9vL

----------------------------------------------------------------------

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Pi 3 as BLE Beacon | Raspberry Pi

Published on Sep 6, 2016

You can use your Raspberry Pi laying around as BLE Beacon.
########################
Links:
Beacon URL Calculator : http://goo.gl/QVaguX
About BLE :http://goo.gl/KpAmlF

Raspberry Pi 3 : http://goo.gl/Oa8KKu
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Twitter : http://goo.gl/1UVHjG
GIT: https://goo.gl/L71Oct

Arduino | Tutorial | MCP3208 Interfacing

DHT11 | Interface using JAVA | Raspberry Pi

SQLite | Interact using JAVA | Raspberry Pi

This tutorial is an overview of interacting with SQLite database using JDBC connector running on Raspberry Pi. It's not about learning SQlite. I have tried to show briefly how it can be done.

---------------------------------------------------------------------------------------

SQLite Getting STarted : http://goo.gl/UuQvzV

Java Application on Pi :  http://goo.gl/5zGGME

Arduino | Tutorial | 16x2 I2C LCD

Arduino | Tutorial | MCP23008 Interfacing

MCP23008 8 Pin Port Expander with I2C interface IC with Arduino. This enables to have more digital GPIO on Arduino or any other uc.

########################

Links:

MCp23008 Connection Diagram :  https://goo.gl/rLdO2k

Pins all HIGH Code  : https://goo.gl/cse7eL

Pins all LOW Code : https://goo.gl/Y9fMij

Pins all BLINK Code : https://goo.gl/vYCJJ0

Pins as INPUT Code : https://goo.gl/tZr0rL



Datasheet MCP23008 : http://goo.gl/KlIULy

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Blog :http://goo.gl/8BTy4z

Twitter : http://goo.gl/1UVHjG

GIT: https://goo.gl/L71Oct

SQLite | Lightweight Database | Raspberry Pi

Autostart Applications | Raspberry Pi | crontab | rc.local & more

This tutorial demonstrates 4 different methods to run GUI/ Non-GUI based application when the Raspberry Pi boots up.

1. Crontab

2. rc.local

3. _file_.desktop

4. init.d folder

test.jar application used in the tutorial : https://goo.gl/tO4sWg

########################

Commands::

1. Crontab:

        $ sudo nano cronatb -e

Add the following lines

@reboot /usr/bin/java -jar /home/pi/Desktop/test.jar

2. rc.local

        $sudo nano /etc/rc.local

3. _file_.desktop

      Contents:. https://goo.gl/Zbe5uS

4.  init.d folder:

       $cd /etc/init.d

       $sudo nano app

                    app Contentes: https://goo.gl/GjDxiB

       $sudo chmod +x app

       $sudo rc-update.d app defaults

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Arduino | Tutorial | MCP23017 Interfacing

MCP23017 IC with Arduino. This enables to have more digital GPIO on Arduino or any other uc.

########################

Links:

MCP23017 Pin Diagram:  https://goo.gl/moQKfh

PORTA as Output : https://goo.gl/Q7tJPN

Blink PORTA Pins : https://goo.gl/8EnL4U

Serial Communication | JAVA | Raspberry Pi

Serial communication with PC/External Devices using UART pins. I have used Pi4J library with JAVA.
########################
Links:
Pi4J Project : http://goo.gl/yKxdoQ
Pi4J Library : http://goo.gl/Yfkk2P
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Twitter : http://goo.gl/1UVHjG
GIT: https://goo.gl/L71Oct

Programming Arduino got Portable | Raspberry Pi

Connecting 3G Dongle | Raspberry Pi

Setting up an Apache Web Server | Raspberry Pi

GPIO Programming in JAVA | Raspberry Pi

WaveSahre 7" HDMI LCD | Raspberry Pi

Bonobo GIT Server | Installation

Arduino | Tutorial | Ultrasonic Sensor Interfacing

Raspberry Pi | Static IP Setup

Raspberry Pi | Running JAVA Application

Raspberry Pi Zero | Ethernet Connectivity

Raspberry Pi Zero | First Look

XAMPP | Make own Local Server

Arduino | Tutorial | CAN Connectivity using MCP2515

Arduino | Tutorial | Cheap Ethernet Connectivity using ENC28J60

This is all about a cheaper alternative to Ethernet Shields of Arduino to connect Arduino to Internet or LAN.

########################
Downloads
Ethercard : http://sh.st/P6yQt
Arduino : http://sh.st/PEvaP
Code :
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Crimson Sky by Arc North https://soundcloud.com/arcnorth
Creative Commons — Attribution 3.0 Unported— CC BY 3.0
http://creativecommons.org/licenses/b...
Music provided by Audio Library https://youtu.be/kNSyjm5dTqg

Benchtop Power Supply | Mod your SMPS

Automatic Piano | Raspberry Pi Projects

Arduino | Tutorial 3 | Serial Communication

Home Automation Tour | Episode 4 Bathroom Module

Arduino | Tutorial 2 | All About GPIO

Home Automation System (ALBERTO) Tour | Episode -3 Kitchen Module

Home Automation System (ALBERTO) Tour | Episode -2 Main Module

Arduino | Tutorial 1 | Getting Started

This is a first tutorial of a series of tutorial on Arduino featuring the Arduino IDE. Basically you can assume this as getting started.


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Support me to keep going.

Home Automation System (ALBERTO) Tour | Episode -1 Door Module

YouTube Channel Intro Video

Wear Dreamers

We are the dreamers

                    with a dream of flying high

We try to touch the sky,

                    And go to a boundless world.
We believe in what we are,

                    We do what we can.

Nothing can stop us,

                     because we are the dreamers.

              

Our dream is to built an INDIA,

                       which world will know.

We tempted to achieve our goal,

                       And eager to score it.

 Everybody will know us,

                       because we are the dreamers.

              

              

We dream to reach beyond the universe,

                       To the house of stars.

We and our knowledge,

                       that will make our dream true.

We never stops

                       because we are the dreamers.

Take a tour of my Home Automation System- Uncut Video

    I have uploaded a uncut video of my home automation system . Please share your feedbacks and subscribe to my youtube Channel.

Automated Audio Controller based on Arduino Pro Mini

These are some of the images of the Audio Controller Module that i have designed for my Smart Home to provide audio feeds from many devices to one or many output audio channels. It's a simple selector not a mixer. Later on I will pro

CRC16 Calculator using JAVA

           CRC codes are numerously used fro error checking purposes. So many times working around Embedded Devices you will find CRC used in different communication protocols. So guys here i have written a piece of code to generate CRC16 using provid

Calculate Energy Usage using Current Sensor ACS712 30A

                 This is a simply cheap solution to calculate Energy consumed by your gears..But still the accuracy i have not tested..Buy a

Measure Distance using Ultrasonic Sensor (HC-SR04) for Robots using Arduino

                 This is simple example to use HC-SR04 ultrasonic transceiver to calculate the distance of a object.  This is simply done by sending a pulse from the module and receiving the echo by it. Then the distance is calculated by considering the time elapsed to receive the echo.

Use TRIAC as Relay

           Mostly we all use relays to control AC loads as they are widely available and cheaper.. But things becomes complicated as they are bulky and makes noise......everyone knows where i have placed my

Making PCB at Home

              By using the conventional APBS which are available in market ,making circuits becomes messy as you have to do all the connections using the wires and of-course it looks ugly.So to avoid that and get a beautiful circuit of your own at a cheaper cost i  am providing this article.


To make own PCB we need Copper cladded board,Hydrochloric acid,hydrogen peroxide,one driller,laser printer,Software to make the circuit design,magazine paper ,one press iron and water.I  have given where can you get all the materials.Now all the processes step by step..

Screenshots of my SmartHome Android App..

Guys here are some screenshots of the Android App used to control devices in my smart home that i am working on....

Getting started with ESP8266-01

         

                 Wi-Fi.....Sounds good right....What if you can make your next project with Wi-Fi interface and with cheaper cost even if lower then ENC28J60 based Ethernet module.....I am sure you will be the happiest one....So how is that possible..? Ya you red right you can get Wifi at cheper price then ENC28J60 and that's by using ESp8266 Wi_Fi modules.

               These modules are extremely cheaper and easy to use. In this post i will post about how to get started with ESp8266-01 modules.

3G Connectivity With Raspberry Pi using Huwaei E303 Dongle

  Hi Guys. In this post we will see how to provide internet connectivity to Raspberry Pi using 3G USB dongle. This comes handy in many cases.The internet connection will be provided by a Huawei E303 USB 3g dongle on the vodafone network Odisha.

Setup

                            Power Source -------->RPI--->(USB) 3g Dongle

         

  The USB port of the PI doesnot have enough power to provide to a 3G dongle so if you plug directly the dongle onto the Pi the Pi may behave unwantingly which can be avoided by using an externally powered USB hub. I Raspbian Wheezy on Raspberry Pi. Next is after connecting the dongle to the Pi is to check if that has been detected by Pi. To get a list of USB connected devices type :

   $ sudo lsusb

RFID With Arduino

    Hello visitors..... Its been a hard time working with my home automation system..And this week I was working with access control system. The end goal was to allow only the authorised user to use my home automation system as well as my system can keep track of the users in and out activity. It now knows exactly i am inside or not or one of my friend is inside. For that i have used RFID Reader as well as Mobile App access token......

    Today with this post i will share how to Interface EM18 RFID reader with Arduino. EM18 is really simple to Interface.

PIR Sensor with Arduino

                           PIR sensors are really simple and easy to use as well as cheap motion detection sensor. The feature that it is easy to interface with any microcontroller makes it widely usable. Here i am providing a simple Arduino sketch to interface it with Arduino.

Circuit Diagram :

Send note as E-Mail from PC application using JAVA

Hi guys. This is my first post using my home management system. Here i am going to post codes on making a simple app that can be used to send email with notes to your own mail. this comes handy when you are working on office or other PC and you want to save something interesting, In that scenario hopefully you will not be interested to open your mobile and get on typing. Hope this helps. But to use this you need to enable IMAP and POP in your mail settings.

** Make sure yo change your mail username and password in saveNote.java File.

From now on i will be providing codes on bitbucket only.

GIT :   https://bitbucket.org/oksbwn25/mailmynote

OSMC (XBMC) Remote using JAVA

hi guys its been a long time since my last post. But here comes a post you would really like. It's something i have been looking for a while now.

Custom Character Generator for 16x2 LCD

 

This is custom character generator developed using JAVA which can come handy while working with 16x2 LCD. The EditText box shows the array with dataof 8 rows in decimal. Below i have attached the source

DHT11 Sensor Interfacing with Raspberry Pi

  Believe me guys i struggled a lot to Interface DHT11 sensor with the Raspberry Pi for my smart home. As i have already opted Pi4J for JAVA programming it was hard to interface with Pi as Pi4J doesn't support one wire protocol. I did lot of research but nothing worked out. Finally i gave a try to python and it worked perfectly. But  as my complete firmware is using JAVA. I opted a way that i will interface it using python but will be executed from JAVA.

External ADC with Raspberry Pi.

           Really I tried a lot with MCP3208 external ADC to interface with the Raspberry pi. Searched for various codes but nothing was available in JAVA. So after some research i got some python code and modified that to JAVA.  in this i have used the Pi4J library.

/****
*Author : Bikash Narayan Panda
*Use : This is used to read ADC data foem the MCP3208 SPI based ADC.
*Date :19/Nov/2014
*Tags: Please Include the Pi4J Library.
*
*
**/
import java.io.IOException;
import com.pi4j.io.gpio.GpioController;
import com.pi4j.io.gpio.GpioFactory;
import com.pi4j.io.gpio.GpioPinDigitalInput;
import com.pi4j.io.gpio.GpioPinDigitalOutput;
import com.pi4j.io.gpio.PinPullResistance;
import com.pi4j.io.gpio.PinState;
import com.pi4j.io.gpio.RaspiPin;

public class SensorTest {

    public static int readadc(int adcnum, GpioPinDigitalOutput clockpin,
            GpioPinDigitalOutput mosi

Modify your old PC SMPS to BenchTop Power Supply Unit

Many time we do have old SMPS of no use to the computers. Those SMPS can be modified as bench-top power supply system providing -12,+12,+5,+3.3 volts. I have used one to power my all arduino based home automation modules and the Raspberry Pi. Here  i am going to post how to mod an old SMPS .

You just need following components along with some  basic tools

                                             1.Screw Terminals.
                                             2.Switch (On/Off).
                                             3.10Watt Resistive load (May be 5K or 10K i have used 4.7K working fine)

Using Raspberry Pi Serial Port

             By default the Raspberry Pi’s serial port is configured to be used for console input/output, it means you can't use the Serial Port in your programs and  needs to be disabled.To enable the serial port for your own use you need to disable login on the port. There are two files that need to be edited

The first and main one is     

              

 /etc/inittab

This file has the command to enable the login prompt and this needs to be disabled. Edit the file and move to the end of the file. You will see a line similar to

                      

Algotithm to Convert 4 byte Hex to 32 bit float

 I really struggled hard to find out some sorts of algorithm to convert 4 hex bytes to 32 bit float for my requirement on some analysis of MODBUS protocol. I didn't find it and it tok me nearly 2 days to design this. Here is the algorithm..

float ModbusRead(byte id,byte msbAddress,byte lsbAddress,byte msbCrc,byte lsbCrc)
{  
    num=1.00;
    Serial.write(id);
    Serial.write(0x03);
    Serial.write((byte)msbAddress);
    Serial.write((byte)lsbAddress);
    Serial.write((byte)0x00);
    Serial.write(0x02);

Running particular application when Rspberry Pi boots up

              While using Raspberry Pi you might not be interested to take  a mouse and keyboard to run certain application when the Pi reboots. To avoid this many procedures are available . In this post i have used crontab to run a JAVA based application each time the Pi reboots. Actually crontab provides many more features.

Run GUI based application on raspberry Pi Startup

          Belief me i went through several websites and tested many proposals to run my JAVA based GUI application on Raspberry Pi start-up. Finally the following worked out

First check inside the .config folder if it contains autostart folder or not , if not then create a folder named as autostart.

Power Over Ethernet (For Ethernet Connected Devices)

         Power Over Ethernet is a widely used concept to power up remote devices like Arduino, Raspberry pi or any other embedded devices working on low voltage and power.There are ready made modules available in the market but are expensive so in this tutorial i will show you to make the cable modified to work for POE.

Cheap Ethernet connection to Arduino using ENC28J60 module

      While working on Ethernet projects with Arduino the basic hardware we require along with Arduino is the Ethernet Shield. But the problem is that in a constrained budget the buying one Ethernet Shield is not possible which leads to other options and a good one is ENC28J60 Ethernet chip by Microchip.This is not as smart as the Wiznet W5100 chip based Ethernet shields but are quite useful as those.This post i am going to write all about interfacing the ENC28J60 module to Arduino UNO as well as Arduino mini Pro.I have used EtherCard library for the coding to interact with the module.

     

          Below is the wiring diagram for Arduino UNO.

    
  Code:

#include <EtherCard.h>
#define PATH    "temp.php"

byte mymac[] = { 
  0x74,0x69,0x69,0x2D,0x30,0x31 };
uint8_t ip[] = { 
  192, 168, 0, 8 };          // The fallback board address.
uint8_t dns[] = { 
  192, 168, 0, 1 };        // The DNS server address.
uint8_t gateway[] = { 
  192, 168, 0, 1 };    // The gateway router address.
uint8_t subnet[] = { 
  255, 255, 255, 0 };

char website[] PROGMEM = "192.168.0.10";
static byte session;
byte Ethernet::buffer[800];
uint32_t timer;
Stash stash;
float temp_R=0;
int tempPinR = A0;
String cont="";
int led = 9;
int sw1 = A1;
int sw2 = A2;
int sw3 = A3;
String sReply="";

Room temperatuer logger using arduino and JAVA

 This post is all about a temperature logger module using two sensors(LM35) and uses serial communication to log data to MySQL server. And it does so by using Arduino at the logger end and JAVA at the server.

  The concept is so simple that the Arduino uses LM35 (providing analog output for measured temperature) ,which is connected to one of the analogIn pin of Arduino. The sketch burned to Arduino converts the read value from the pin to corresponding temperature. And it sends the data through the serial port.

  At PC side a JAVA application runs which uses TxRx library for communicating with the serial port. The application reads the data from the serial port and acknowledged to Arduino. It then saves the red data to a database.

Control VLC Player using Android (Wifi Connected)

    My first application of Android comes here.In my first tutorial on Controlling VLC using JAVA you can see that the VLC provides a Web interface from which it can be controlled and it also accepts certain commands.So that can be used to control the media player in Local Area Network using any programming language.This time its Android

Code:
MainActivity.Java

package com.example.first_app;
import java.net.Authenticator;
import java.net.URL;


import android.os.Build;
import android.os.Bundle;
import android.os.StrictMode;

4 Channel relay board using L293D

         Many time it requires controlling relays to automate different things in projects.But thing is generally Relays are driven by either high voltage and requires high current but most of the embedded systems works at lower voltage and the constrain is they cant provide high current.

Sending Message from PC through mobile using AT Commands over Bluetooth

AT Commands:
              AT or attention are set of commands those are used to communicate with GSM modems.I am not going much about it as you can google it.I tried using the AT commands through Bluetooth  which was successful and finally integrated it to JAVA so that I can send message through my mobile using an interface instead of hyper-terminal.Before getting it started check your mobile if it supports the commands or not by using Hyper-terminal or any serial port Software.


               In the below codes i have used RxTx serial communication library that is free to use and my communication port was 'COM9' please check it for you and then changing it compile the code.

Main.java //Main GUI

package com.oksbwn.Y2014.Message_Mobile;



import java.awt.Color;

import java.awt.Dimension;

import java.awt.event.MouseAdapter;

import java.awt.event.MouseEvent;



import javax.swing.*;