Year: 2018

ESP32 LoRaWAN Node using Arduino

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…

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Making a Java Swing JFrame Transparent

Bikash Narayan Panda
programming

This is how you can create a transparent JFrame in JAVA. public class transparentJFrame { public static void main(String[] args) { new transparentJFrame(Date, Head, Detal); } public transparentJFrame(String Date, String Head, String Detal) { JFrame frame = new JFrame(); frame.setUndecorated(true); frame.setBackground(new Color(Color.black.getRed(), Color.black.getGreen(), Color.black.getBlue(), 1)); //Change value of ‘1’ above to have diff transparency ((JComponent) frame.getContentPane()).setBorder( BorderFactory.createMatteBorder(3, 2, 2, 2, Color.black)); frame.setBounds(100, 50, 500, 400); frame.getContentPane().setLayout(null); final JLabel lblX = new JLabel(“X”); lblX.setBounds(frame.getWidth() – 15, 5, 15, 15); lblX.setForeground(new Color(255, 255, 255)); lblX.setToolTipText(“Closern”); lblX.addMouseListener(new MouseAdapter() { @Override public void mouseClicked(MouseEvent…

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Wi-FI Remote for MI TV using ESP8266

Bikash Narayan Panda

I got an MI Smart TV and was pretty much interested in including that in my Home Automation system (OpenHAB). It is supposed to be controlled so that it can be turned on or off based on profile and scene. Although the TV does support MI TV remote over Wi-Fi, it is not able to turn on the TV when it is off. The easiest way to do so is to replicate the remote to an ESP8266 board is having an IR LED and Wi-Fi. By using it everything that…

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16×2 LCD With LPC1768 ARM Microcontroller | In Depth

LCD is an output display device abbreviation for Liquid Crystal Display. Many varieties and types of LCD comes into the market and out of them, 16×2 LCD is the simplest one and is easy to be interfaced. As the name suggests it is a 2 line display and each line supports up-to 16 characters. The 16×2 LCD is a  16 pin device having a PCB mounted controller and a display. The controller listens to the data ports and generates the pattern to be displayed according to the i/p data. Out of…

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PIR Sensor with Arduino

arduino_logo-wallpaper-1920x1200

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. This post is a simple one around how to interface any PIR sensor having digital output to the arduino board. There are many kinds of PIR sensors available having stuff like onboard relay etc. but the one I am using gives digital output whenever it detects motion. Due to that, it is easy to interface with any microcontroller.  …

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Appliances Control System using Raspberry Pi and Node.js

RPi GPIO Programming using Arduino Web IDE

This is a Raspberry Pi based project using Raspberry Pi and Node.js which lets the user control appliances connected to the Raspberry Pi. Node.js acts as a server which serves a UI for the user to control the desired appliances. According to the input by the user, the node.js script running on Raspberry Pi toggles the GPIO required and the state of the device connected to the GPIO, gets changed.As most appliances operate from AC supply, mechanical or solid state Relays has to be used to control the appliances. The…

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Sending SMS using GSM Module and LPC2148

Bikash Narayan Panda
SIM300 GSM Module

When accessing GSM networks comes in picture in embedded system ,the only way around i to use GSM/GPRS modules which provides RS-232/UART interface and supports for AT command sets (Commands used for calling,Messaging etc) and usually easy to integrate with embedded modules. Some of the modules manufactured by SIMCOM are widely used as they are pretty cheap and are easily available.This post is about connecting a SIM300 module to LPC2148 using UART and send message to a mobile number. The SIM module is connected to the LPC2148 by using the…

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Cheap LoRa Gateway using Pi & RAK831

Bikash Narayan Panda
RAK831 LoRa Gateway

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…

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RPi GPIO Programming using Arduino Web IDE

Bikash Narayan Panda
RPi GPIO Programming using Arduino Web IDE

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…

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Respeaker 2 HAT With Raspberry Pi

Respeaker HAT

[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…

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