wglabz Archives

LockDown PC based on availability of Bluetooth Device

March 30, 2020April 1, 2020 Bikash Narayan Panda

This article describes a method of locking the PC when the user is not around.Actually it detects the user mobile phone’s bluetooth (And yes it has to be turned on all the time.) and if the application can’t find the phone it sends a command to lock down the workstation.The codes are written in JAVA and it uses the Bluecove library ,which is a open source one. The app uses the bluetooth MAC address instead of the name so as to provide security. So first we need to find out…

Taking Screenshots using JAVA

August 12, 2019April 1, 2020 Bikash Narayan Panda

Screenshots are often required while working with projects. There are many solutions available, like the inbuilt Snipping Tool (Windows).

Automatic project structure/git creation in Windows

January 27, 2019April 3, 2020 Bikash Narayan Panda

While working in projects on a daily basis, as I do for YouTube videos, we tend to create the same folder structure and related repositories every time, as we move to the next project. For me, it is like creating folders for video, code, uploaded video, schematics and so on and in my most of the video for YouTube, I always create almost same folders. Along with that, I create GitHub repository to host the codes that I use in the project or tutorial to distribute. And I hate doing the…

Connected Weighing scale using HX711 and ESP8266

January 20, 2019

Since I got into Home Automation System, I have always wanted a central system with as much as information about me starting from my food habit to each and everything that can be measured or collected. You can say that it is greatly influenced by JARVIS of Iron Man which came around my Engineering days. Coming to the topic, I recently managed to connect a regular bathroom weighing scale to my Home Automation System (OpenHAB) using MQTT. So basically this post is all about how to do that. For the weighing…

ESP32 LoRaWAN Node using Arduino

December 31, 2018January 4, 2019 Bikash Narayan Panda

To test out the recent addition in my lab that is the LoRa gateway, I needed one LoRa node also. LoRa modules are available to be used with Arduino as well as Raspberry Pi and are pretty cheap too. However, you can get complete LoRa module with ESP32 and OLED display at pretty low price from Banggood, and they fit the purpose. And by using these, you don’t need to jumble around jumpers. In this post, I have covered how to make a simple, cheap LoRa node that can send…

Cheap LoRa Gateway using Pi & RAK831

September 23, 2018September 23, 2018 Bikash Narayan Panda

Lately, I have been working with LoRAWAN and I don’t have Lora gateway around. As you might be knowing LoRAWAN network requires a gateway to push data to the internet. As Lora is not an IP based protocol the gateway helps it in doing so. Basically, multiple LoRAWAN nodes transmit data to the gateway and the gateway transfers the concentrated data to server backend. Server backend which resides in the cloud contains a network server which helps in managing the network and the application server which is responsible for the data and…

RPi GPIO Programming using Arduino Web IDE

August 12, 2018October 3, 2018 Bikash Narayan Panda

Recently Arduino has launched support for programming ARM-based SBCs by using the Arduino web editor and Raspberry Pi is one of the SBCs in the list. This video is all about the basic setup to get started with the programming of the Raspberry Pi GPIOs by using Arduino codes. The setup is pretty simple and will help you if you are more comfortable in the Arduino ecosystem as compared to python. More depth functionalities are yet to be checked. Bikash Narayan PandaDeveloper, Tinkere, a proud Dad.. love to spend…

Respeaker 2 HAT With Raspberry Pi

August 8, 2018August 8, 2018

[sg_popup id=”1503″ event=”onLoad”][/sg_popup] This article is around Raspberry Pi and this Re speaker 2 Mics Pi HAT. ReSpeaker 2-Mics Pi HAT is a dual-microphone expansion board for Raspberry Pi designed for voice applications, like Amazon Alexa or Google Assistant. So if you are interested in playing around Alexa or assistant enabled applications with Raspberry Pi you can certainly try this out. We will set it up with Raspberry Pi and will check some demo applications. The board is developed around WM8960, a low power stereo codec. There are 2 microphones…

OpenHAB2 Installation on Ubuntu Server (16.04)

May 29, 2018May 29, 2018 Bikash Narayan Panda

In my last post about the installation of Zulu JDK to Ubuntu 16.04 server, I covered how to do so and was required so that OpenHAB can run on my server. This post is in the line of my last post and is about the installation of OpenHAB to ubuntu 16.04 server. This post is all about installing OpenHAB to Ubuntu 16.04 using the manual method. I tried with apt-get, but that didn’t work for me. STEP 1 (Download OpenHAB runtime): Navigate to a folder where you can download files…

Install Zulu JDK on Ubuntu

May 20, 2018June 11, 2021 Bikash Narayan Panda

Recently I moved my server to Ubuntu from windows. I went with Ubuntu 16.04 server edition as it is lightweight as compared to the desktop edition and comes preloaded with some server tools. As I am running OpenHAB for my home automation system I wanted to install it on the server but the server edition doesn’t come with JAVA/JDK pre-installed. As per OpenHAB, Zulu JDK is the recommended JAVA platform and performs better as compared to OpenJDK. Though Oracle JDK can be installed, I thought of trying ZULU. So let’s…