Plotly is an amazing interactive and open source library for data analysis that supports over 40 unique chart types covering a wide range of statistical, financial, geographic, scientific, and 3-dimensional use-cases. In this article, we are going to present how we can color specific areas on the graph according to the field’s value inside our data frame. The result will be as the below...
Dynamic Database Creation Using Apache Kafka Streaming Messages
The aim of this project is to ingest incoming Kafka streaming messages and store those dynamically into a database without the mandatory existence of predefined SQL Tables. Table of Contents General InfoTechnologiesGetting startedExamples of use General Info Data and logs that surround us need to be processed, reprocessed, analyzed, and handled. Often in real-time. That’s what makes the...
Interactive Linear Regression application in WPF C#
In this post we will see a simple application in C# implementing the linear regression algorithm on a set of data created by the user. A linear regression is one of the easiest statistical models in machine learning. Linear regressions can be used in business to evaluate trends and make estimates or forecasts, It is used to show the linear relationship between a dependent variable and one or more...
Use the NAND Flash Memory ( MT29F2G01ABAGDWB-IT) with STM32
In this post, you will find a simple, yet easy to use middleware to interface the NAND Flash Memory MT29F2G01ABAGDWB-IT with an STM32 microcontroller using QUADSPI communication . The Micron NAND Flash devices are available in different configurations and densities to fit your project’s needs. It uses SPI and it is a good an alternative solution to SPI NOR, offering superior write...
Lumen configuration of JWT authentication
Following up our previous post Getting started with Lumen 7.0.x and JWT authentication, we will present how to properly configure the authentication package we installed. Most of this tutorial also applies in Laravel framework as long as Lumen is a minimal implementation of it. For this tutorial we will recap some parts. First of all we need the following two packages to be installed via...
Getting started with Lumen 7.0.x and JWT authentication
Lumen is the perfect solution for building micro-services based on PHP. In this tutorial, we will build a simple and secure REST API. At the end of this tutorial, you should be able to build production-ready JWT (authentication) template for lumen which will help you build your own APIs. So, let’s get started! In this tutorial we will use WAMP to host our micro-service. We assume that you...
Using Bluetooth communication in C#
Bluetooth is a useful communication method especially in the era of IOT. Several devices around the house have a build-in buetooth transceiver and most of them provide really useful capabilitites to automate jobs. For example, imaging your wakeup in the morning, Your alarm clock rings and the coffe machine starts preparing the coffe. Unfortunately these automated procedures are not yet available...
Simple WCF service hosted in Windows service
WFC services are a good way to spit a complex and demanding application into smaller parts and use more system resources, but not only. In the literature there are several information why you should use WFC (ex: Distributed apps in a local network etc)… In this example you will find a complete Visual studio project which hosts a wcf service inside a windows service. Our service has two...
A naïve way to find the winner at the ‘Five in a row’ board game – C Source Code
Five in a row is a relatively easy game for two players. The aim is to get five of one's pieces in a row (horizontal, vertical, or diagonal). Below is a simple algorithm in C to find the winner.
Encoding in Base64 (C Source Code)
Base64 encoding schemes are generally used when there is a need to encode binary information that needs to be stored and transferred over media that are developed to deal with textual information. This guarantees that the data stays unchanged without modification during transfer. Base64 is generally used in a number of applications including electronic mail via MIME, and keeping complex...
